Relevant bibliographies by topics / Plant forms

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Plant forms'

Author: Grafiati
Published: 4 June 2021
Last updated: 31 July 2024

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Journal articles on the topic "Plant forms"

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Berg, R. Howard. "Frankia forms infection threads." Canadian Journal of Botany 77, no. 9 (December 18, 1999): 1327–33. http://dx.doi.org/10.1139/b99-073.

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Frankia forms symbioses with a great variety of plant hosts, and because nodule development is under plant control, this results in an interesting diversity in the structure of developing symbiotic cells. However, it is apparent that, in all these symbioses, the microsymbiont Frankia follows a similar pattern of development within symbiotic cells of the nodule: the cell is invaded by formation of an infection thread containing invasive hyphae sheathed in plant cell wall material, parasitic vegetative hyphae proliferate by branching from this infection thread, and N2-fixing symbiotic vesicles differentiate from tips of these vegetative hyphae. Infection threads are recognized by their ontogeny and morphology, being the cell-invasive structures in the case of the former and straight-growing hyphae in the case of the latter. Formation of infection threads is a feature shared in common with legumes. Unlike in legumes, the infection thread in actinorhizae is not defined by the presence of sheathing plant cell wall material; all forms of the bacterium have this. Rather than using the term "encapsulation," which suggests a bacterial origin, it is proposed the term "interfacial matrix" be used to describe this plant cell wall material separating Frankia from host cytoplasm.Key words: Frankia, infection thread, interfacial matrix, microsymbiont, nodule, symbiosis.
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Samuolienė, G., A. Brazaitytė, A. Virsilė, R. Sirtautas, J. Sakalauskaitė, S. Sakalauskienė, and P. Duchovskis. "PHOTOMORPHOGENETIC EFFECTS IN DIFFERENT PLANT LIFE FORMS." Acta Horticulturae, no. 1099 (September 2015): 129–35. http://dx.doi.org/10.17660/actahortic.2015.1099.12.

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SILVA, O. A., I. M. PINHEIRO, G. S. PEREIRA, and L. C. C. NUNES. "EXPLORATION TECHNOLOGY PLANT EXTRACTS ON FORMS MUCOADHESIVE." Revista Gestão, Inovação e Tecnologias 4, no. 2 (June 22, 2014): 735–43. http://dx.doi.org/10.7198/s2237-072220140002002.

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Broadley, Martin R., Amanda Burns, and Ian G. Burns. "RELATIONSHIPS BETWEEN PHOSPHORUS FORMS AND PLANT GROWTH." Journal of Plant Nutrition 25, no. 5 (May 2002): 1075–88. http://dx.doi.org/10.1081/pln-120003940.

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Donaldson, Robert P., and Douglas G. Luster. "Multiple Forms of Plant Cytochromes P-450." Plant Physiology 96, no. 3 (July 1, 1991): 669–74. http://dx.doi.org/10.1104/pp.96.3.669.

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Dupree, Paul. "Plant embryogenesis: Cell division forms a pattern." Current Biology 6, no. 6 (June 1996): 683–85. http://dx.doi.org/10.1016/s0960-9822(09)00449-7.

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Huebert, B., P. Vitousek, J. Sutton, T. Elias, J. Heath, S. Coeppicus, S. Howell, and B. Blomquist. "Volcano fixes nitrogen into plant-available forms." Biogeochemistry 47, no. 1 (October 1999): 111–18. http://dx.doi.org/10.1007/bf00993099.

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Ohlendorf, Rahel, Nathanael Yi-Hsuen Tan, and Naomi Nakayama. "Engineering Themes in Plant Forms and Functions." Annual Review of Plant Biology 74, no. 1 (May 22, 2023): 777–801. http://dx.doi.org/10.1146/annurev-arplant-061422-094751.

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Living structures constantly interact with the biotic and abiotic environment by sensing and responding via specialized functional parts. In other words, biological bodies embody highly functional machines and actuators. What are the signatures of engineering mechanisms in biology? In this review, we connect the dots in the literature to seek engineering principles in plant structures. We identify three thematic motifs—bilayer actuator, slender-bodied functional surface, and self-similarity—and provide an overview of their structure–function relationships. Unlike human-engineered machines and actuators, biological counterparts may appear suboptimal in design, loosely complying with physical theories or engineering principles. We postulate what factors may influence the evolution of functional morphology and anatomy to dissect and comprehend better the why behind the biological forms.
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Bejarano, María D., Judith Sarneel, Xiaolei Su, and Alvaro Sordo-Ward. "Shifts in Riparian Plant Life Forms Following Flow Regulation." Forests 11, no. 5 (May 5, 2020): 518. http://dx.doi.org/10.3390/f11050518.

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Flow regulation affects bordering riparian plant communities worldwide, but how different plant life forms are affected by river regulation still needs further research. In northern Sweden, we selected 10 rivers ranging from free-flowing to low, moderately, and highly regulated ones. In 94 reaches across those rivers, we evaluated the relative abundance of woody and herbaceous (i.e., graminoids and forbs) life forms, their species richness, and their relative presence. We also explored which, and to what extent, hydrological variables drove species assembly within each life form. The relative abundance and species richness of each life form decreased across river categories with increasing levels of regulation. This was particularly apparent in herbaceous life forms, and the most drastic decreases were observed in all life forms in moderately or highly regulated reaches. Additionally, when river regulation increased, the relative presence of many species from all life forms decreased. Unlike woody species, only a few new herbaceous species appeared in regulated reaches. A canonical correspondence analyses (CCA) revealed that a wide range of hydrological variables explained the occurrence of woody species, while fewer variables explained variation in the graminoid and forb life forms. We conclude that flow regulation and its intensity result into clear shifts in the relative abundance of different life forms, as well as in changes of within-group species richness and composition. Consequently, the modification of certain flow attributes in flow regulation schemes, as well as the intensity of these modifications, may alter the ratio between herbaceous and woody species, ultimately impacting the functions and benefits derived from each life form.
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Prakongkep, Nattaporn, Robert John Gilkes, and Wanpen Wiriyakitnateekul. "Forms and solubility of plant nutrient elements in tropical plant waste biochars." Journal of Plant Nutrition and Soil Science 178, no. 5 (August 20, 2015): 732–40. http://dx.doi.org/10.1002/jpln.201500001.

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Dissertations / Theses on the topic "Plant forms"

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Jagoe, Randall Thomas. "Examination of hull forms for an Offshore Nuclear Plant." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/111895.

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Thesis: Nav. E., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 61).
The Nuclear Science and Engineering Department at MIT has a concept design for an Offshore Nuclear Plant (ONP). This project highlights the advantages of the offshore location by reducing the risk of natural disasters and cost of terrestrial nuclear power facilities. The original ONP conceptual design consists of a large cylindrical floating platform similar to existing platforms in the offshore oil and natural gas industries. This study investigates the advantages and disadvantages of different hull forms that the ONP may use in an effort to identify an optimal balance between hull configuration and stability. Multiple platform designs were modeled to compare the differences in seakeeping and stability. These variants explored the characteristics and combinations of fiat hull plating to replace the original cylinder shape, lengthening the platform to minimize overall depth and draft. The different hulls were modeled and then analyzed using a three dimensional radiation-diffraction panel method to simulate each platform's response in a given sea state. The variants were compared utilizing the JONSWAP spectrum for a 100-year storm in North Sea and evaluating the response in six degrees of freedom. While seakeeping performance is the primary characteristic evaluated, other effects of the design changes such as mooring complexity, ease of construction, and arrangeable area were also compared. The key trade off is the seakeeping performance prediction versus the estimated economic benefits of the alternate hull form arrangement. This consideration has to be made with respect to the actual meteorological and ocean conditions for the operational location. This is particularly true with respect to ocean depth, as the deep draft of the vertically arranged hulls can allow for greater non-linear effects on the motions. For the environment specified in this study and the economic benefits perceived by the design, the laterally arranged "stretched" design is worthy of more attention.
by Randall Thomas Jagoe.
Nav. E.
S.M.
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Jagoe, Randall Thomas. "Examination of hull forms for an Offshore Nuclear Plant." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111895.

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Abstract:
Thesis: Nav. E., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 61).
The Nuclear Science and Engineering Department at MIT has a concept design for an Offshore Nuclear Plant (ONP). This project highlights the advantages of the offshore location by reducing the risk of natural disasters and cost of terrestrial nuclear power facilities. The original ONP conceptual design consists of a large cylindrical floating platform similar to existing platforms in the offshore oil and natural gas industries. This study investigates the advantages and disadvantages of different hull forms that the ONP may use in an effort to identify an optimal balance between hull configuration and stability. Multiple platform designs were modeled to compare the differences in seakeeping and stability. These variants explored the characteristics and combinations of fiat hull plating to replace the original cylinder shape, lengthening the platform to minimize overall depth and draft. The different hulls were modeled and then analyzed using a three dimensional radiation-diffraction panel method to simulate each platform's response in a given sea state. The variants were compared utilizing the JONSWAP spectrum for a 100-year storm in North Sea and evaluating the response in six degrees of freedom. While seakeeping performance is the primary characteristic evaluated, other effects of the design changes such as mooring complexity, ease of construction, and arrangeable area were also compared. The key trade off is the seakeeping performance prediction versus the estimated economic benefits of the alternate hull form arrangement. This consideration has to be made with respect to the actual meteorological and ocean conditions for the operational location. This is particularly true with respect to ocean depth, as the deep draft of the vertically arranged hulls can allow for greater non-linear effects on the motions. For the environment specified in this study and the economic benefits perceived by the design, the laterally arranged "stretched" design is worthy of more attention.
by Randall Thomas Jagoe.
Nav. E.
S.M.
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Biddle, Kelly Denise. "An analysis of alternative forms of plant reproduction using Gossypium barbadense and Arabidopsis thaliana." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1158.

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Pullan, M. R. "Plant population and sowing date in novel forms of combining peas." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383719.

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Talbot, Victoria. "The chemical forms and plant availability of copper in composting organic wastes." Thesis, University of Wolverhampton, 2007. http://hdl.handle.net/2436/20493.

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A seven-step sequential extraction scheme was used to track changes in operationally defined copper speciation during the composting of a mixture of grass clippings and sawdust originating from tanalised timber. Starting materials were either unamended or treated with differing amounts of soluble copper, using a copper acetate solution, and then composted in the laboratory. Results showed that at the start of the experiment over 80% of the copper present in the unamended materials occurred in forms not immediately available for plant uptake. However, composting processes enabled the release of this copper which then, over time, became more bioavailable. Large amounts of copper in the copper amended materials were initially detectable in all fractions except the residual one, but over time it was seen to move from all fractions to the EDTA extractable fraction, thought to determine organically complexed / chelatable metals (Amir, 2005). This continued until an equilibrium was reached and then the water and calcium nitrate extractable forms appeared to hold the excess. Copper as determined by these extracts would be available for plant uptake. In the second experiment, three different organic wastes (grass/sawdust, pig slurry/sawdust and sewage sludge cake/sawdust) to which copper had been added as copper acetate, sulphate or EDTA, were composted in the laboratory. Samples were taken at 0, 105 and 318 days and subjected to a range of analyses: copper by sequential extraction using two different extraction schemes, a chelating resin membrane (CRM) procedure and by XRF spectrometry; FTIR analysis for functional groups; total carbon, nitrogen and sulphur; pH, EC, NH4+ and NO3- nitrogen, COD, germination indices and optical properties of water extracts. Sequential extractions demonstrated clear changes in copper distribution amongst various fractions within the materials, with copper originally present in the materials being transferred from the oxidisable fractions to easily extractable (and hence potentially phytoavailable) fractions. Transfer of copper from available to less available fractions in copper amended materials was also seen with movement of copper within copper EDTA treated materials being the slowest of all. Initial amounts of copper in fraction 1 extracted from all samples determined the rate at which copper was transformed. CRM determined copper correlated strongly with copper from fraction 1 of the Tessier scheme, although changes over time did not correspond well. Other parameters measured indicated that that the material was maturing (decreases in C/N and polysaccharide functional groups). However, other results demonstrated that the composts were still immature and unstable. Such slow decomposition was attributed to the high lignin content of the materials. Nevertheless, immobilisation of potentially phytotoxic level of copper was still demonstrated. The usefulness of chelating resin membrane as a predictor of phytoavailable copper is also discussed.
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Testa, Pamela Grace. "Botanical Specimens: A Series of Relief and Intaglio Print Variations Indexing Plant Forms." Kent State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1366128406.

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Berriri, Souha. "Identification of constitutively active forms of Arabidopsis MAP Kinases : brings more evidence on MPK4 function in plant immunity." Thesis, Evry-Val d'Essonne, 2012. http://www.theses.fr/2011EVRY0024.

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La phosphorylation/déphosphorylation des protéines est un mécanisme de signalisation intracellulaire commun. Parmi les kinases végétales, les Mitogen-Activated Protein Kinases (MAPKs) sont impliquées dans de nombreux processus biologiques importants, comme la réponse aux stress biotiques et abiotiques, le développement et la dynamique du cytosquelette. Chez Arabidopsis thaliana et ce malgré de nombreux efforts, les fonctions des kinases impliquées dans les cascades MAPK restent peu inconnues. L'activation des kinases en utilisant des mutations mimant la phosphorylation des sites normalement phosphorylés est une approchequi a fait ses preuves dans le cas de MAP2Ks et a largement contribué à élucider leurs fonctions. Cette stratégie s’est révélée impossible dans le cas des MAPKs, puisque les résidus à muter restent encore à identifier. Pour contourner ce problème, nous avons adapté un crible basé sur la complémentation fonctionnelle d’un mutant MAPK de levure avec des formes aléatoirement mutées de MPK6d’Arabidopsis dans le but d'identifier des mutants présentant une activité constitutive. Nous en avons identifiés plusieurs et avons montré que ces formes constitutivement actives (CA) de MPK6 sont actives sans phosphorylation par les MAP2Ks. Par ailleurs, les mutations des résidus équivalents dans d'autres MAPKs les rendent également hyperactives, ce qui indique que cette stratégie peut être utilisée comme approche générale pour activer les MAPKs afin d’en comprendre les fonctions. L’étude des interactions protéine-protéine et l’analyse des profils dephosphorylation indiquent que les MAPKs CA conservent leur spécificité envers leurs substrats et interacteurs. Comme preuve de concept, nous avons généré des formes actives du MPK4. La MPK4 CA exprimée sous son propre promoteur a parfaitement complémenté le mutant mpk4. La caractérisation des lignées exprimant MPK4 CA confirme le rôle négatif de cette kinase dans les réponses de défense aux pathogènes des plantes que ce soit dans la PTI (PAMP Triggered Immunity) ou dans la ETI (Effector Triggered Immunity). Globalement, ce travail permettra de fournir des informations directes sur les cibles des MAPKs et devrait contribuer à la compréhension globale de la transduction du signal chez les plantes
Protein phosphorylations and dephosphorylations are common events occurring duringintracellular signaling processes. Among plant kinases, Mitogen-Activated Protein Kinases (MAPKs) are involved in signaling of many important biological processes, including biotic and abiotic stresses, development and cytoskeleton organization. Despite an abundant literature on MAPKs, the exact roles and direct targets of many Arabidopsis thaliana MAPKs are not clear yet. The activation of kinases using phospho-mimicking mutations of the phosphorylated residues was a successful approach in the case of MAP2Ks, helping to elucidate their functions. This strategy failed in the case of MAPKs since the necessary residues to mutate remain unclear. To bypass this problem, we adapted a screen based on the functional complementation of a MAPK yeast mutant with randomly mutated Arabidopsis MPK6 in order to identify the ones mutants showing constitutive activity. We identified several clones and showed that these constitutively active (CA) of MPK6 candidates are indeed active without phosphorylation by MAP2Ks. Interestingly, mutations of the equivalent residues in other MAPKs triggered constitutive activity as well, indicating that this strategy may be used as a general approach to activate MAPKs and identify their functions. Interaction and phosphorylation assays indicatedthat CA MAPKs retain their substrate and interactor specificity. As proof-of-concept, we generated active versions of MPK4. CA MPK4 expressed under itsown promoter successfully complements mpk4 mutant plants. Characterization of CA MPK4 lines further confirmed the negative role of MPK4 in plant pathogen defense responses and its implication in both PTI (PAMP Triggered Immunity) and ETI (Effector Triggered Immunity). Overall, the work will help to provide direct information on all MAPK targets and should be an important contribution to the overall understanding of signal transduction in plants
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Midgley, Guy F. "Ecological aspects of the substrate and water relations of deciduous and evergreen plant forms in the western Karoo." Master's thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/21930.

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The principle aim of this work was to ascertain the relative importance of water and nutrient supply in determining the success of deciduous and evergreen plant forms on two main substrate types in the Worcester-Robertson valley, situated in the Succulent Karoo Biome. The substrate types selected for study represent soils of zoogenic soil mounds (locally termed "heuweltjies", and often referred to in the literature as "Mirna-like" mounds), and soils immediately adjacent to and surrounding the soil mounds. The distribution of deciduous and evergreen plant forms in the Worcester-Robertson valley was analys~d relative to the selected substrate types. Foliar elemental concentrations of four selected species growing on both substrates at five separate sites within the valley were determined. Also, the patterns of seasonal water stress exhibited by three deciduous and five evergreen non-succulent woody perennials growing in both substrates were investigated on high radiation (equator-facing) and low radiation (pole-facing) slopes at one intensive study site, the Worcester Veld Reserve.
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Hempson, Gareth. "An alternative hypothesis for explaining anomalies in the fine scale distribution patterns of Colophospermum mopane : Are shrub and tree forms genetically distinct ?" Bachelor's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/26022.

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Abiotic and top down control hypotheses do not adequately explain the fine scale distribution patterns of shrub and tree Colophospermum mopane (Caesalpinioideae). Genetic distinctiveness between growth forms is investigated as an alternative hypothesis. Tree and shrub C. mopane from the riparian and inland savanna zones were sampled at four sites in the northern Kruger National Park. Molecular DNA sequences were obtained for four plastid and one nuclear region, and the inter simple sequence repeat (ISSR) technique used to fingerprint individuals. Very low levels of sequence divergence were observed. The ISSR technique revealed no genetic structure between plants when grouped by growth form or by habitat in an analysis of molecular variance (AMOV A). Soil profile and xylem pressure potential data also did not explain the distribution of growth forms. A principle component analysis and a discriminant analysis of five leaf and branching characters identified a significant difference in the shape of shrub and tree C. mopane leaves. It is concluded that the C. mopane growth forms are not genetically distinct and that their fine scale distributions may be due to top down controls such as large mammals and fire.
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Van, der Heyden Francois. "An investigation of photosynthetic C-fixation in fynbos growth forms and its variation with season and environmental conditions." Master's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/17725.

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Bibliography: pages 162-177.
The seasonal and diurnal patterns of photosynthetic gas exchange and the water relations of seven species of the mediterranean-climate region of South Africa (fynbos) were investigated. The following species, representing the major fynbos elements, were chosen for intensive investigation: Erica plukenetii and Erica hispidula (ericoid element), Thamnochortus lucens and Askidiosperma paniculatum (restioid element), Protea laurifolia and Leucadendron salignum (proteoid element). Metrosideros angustifolia, a shrub of riparian habitats, was also studied.
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Books on the topic "Plant forms"

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Raunkiaer, Christen. Life forms of plants and statistical plant geography. London: Oxford University Press, 2005.

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Blossfeldt, Karl. Natural art forms: 120 classic photographs. Mineola, N.Y: Dover Publications, 1998.

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W, Moffat Donald. Plant manager's handbook of model reports and formats. Englewood Cliffs, N.J: Prentice Hall, Business & Professional Division, 1990.

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Townsend, W. G. Paulson. Plant and floral studies for artists and craftspeople. Mineola, NY: Dover, 2005.

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Grasset, Eugène. Grasset's art nouveau flower and plant designs. Mineola, NY: Dover Publications, 2008.

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Verma, B. N., and Prem Kumar Prasad. Biosphere: Forms and functions : a festschrift to Professor B.N. Verma. Delhi: Daya Pub. House, 2011.

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Eggleston, Brian. Model forms of contract for electrical and mechanical plant. Oxford: Blackwell Scientific, 1995.

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Khanlari, Raveed. FIDIC plant and design-build forms of contract illustrated. Hoboken, N.J: John Wiley and Sons, Inc., 2015.

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Liska, Roger W. Handbook of building and plant maintenance forms and checklists. Englewood Cliffs, N.J: Prentice Hall, 1988.

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Leconte, Emile. Sourcebook of elegant historic ornament. New York: Dover Publications, 1995.

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Book chapters on the topic "Plant forms"

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Lack, Andrew, and David Evans. "Ecology of different growth forms." In Plant Biology, 199–201. 2nd ed. London: Taylor & Francis, 2021. http://dx.doi.org/10.1201/9780203002902-60.

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Cytryn, Eddie, and Max Kolton. "Microbial Protection Against Plant Disease." In Beneficial Microorganisms in Multicellular Life Forms, 123–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21680-0_8.

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Ballio, A., D. Barra, F. Bossa, J. E. DeVay, I. Grgurina, N. S. Iacobellis, G. Marino, P. Pucci, M. Simmaco, and G. Surico. "Occurrence of Multiple forms of Syringomycin." In Phytotoxins and Plant Pathogenesis, 363–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73178-5_28.

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Matsumoto, S., M. Yamagata, N. Koga, and N. Ae. "Identification of organic forms of nitrogen in soils and possible direct uptake by plants." In Plant Nutrition, 208–9. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/0-306-47624-x_100.

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Remillet, M. "Insect-Parasitic Nematodes Resembling Plant-Parasitic Forms." In Nematode Identification and Expert System Technology, 283–89. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-9016-9_26.

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Gibson, Arthur Charles. "Plant Life Forms of Warm Desert Climates." In Structure-Function Relations of Warm Desert Plants, 1–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-60979-4_1.

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Denny, Patrick. "Wetland vegetation and associated plant life-forms." In The ecology and management of African wetland vegetation, 1–18. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5504-2_1.

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Ewel, John J., and Seth W. Bigelow. "Plant Life-Forms and Tropical Ecosystem Functioning." In Ecological Studies, 101–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-79755-2_6.

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Helman, Yael, Saul Burdman, and Yaacov Okon. "Plant Growth Promotion by Rhizosphere Bacteria Through Direct Effects." In Beneficial Microorganisms in Multicellular Life Forms, 89–103. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21680-0_6.

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Sasaki, Yukiko, Tomokazu Konishi, and Yukio Nagano. "Compartmentalization of Two Forms of Acetyl-CoA Carboxylase and Plant Tolerance towards Herbicides." In Plant Lipid Metabolism, 52–54. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8394-7_15.

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Conference papers on the topic "Plant forms"

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"Genetic resources in creating sustainable diseases of introgressive spring wheat forms." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-002.

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Valitova, Yu N. "Cold stress in wheat seedlings: membrane sterols, phospholipids and active oxygen forms." In IX Congress of society physiologists of plants of Russia "Plant physiology is the basis for creating plants of the future". Kazan University Press, 2019. http://dx.doi.org/10.26907/978-5-00130-204-9-2019-93.

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Korolev, K. P., N. A. Bome, and K. V. Kramar. "Criteria for the selection of drought-resistant forms of flax (Linum usitatissimum L.)." In IX Congress of society physiologists of plants of Russia "Plant physiology is the basis for creating plants of the future". Kazan University Press, 2019. http://dx.doi.org/10.26907/978-5-00130-204-9-2019-229.

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"Creation of early maturing productive forms of cereals using the cell biotechnology and physiologically active compounds." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-028.

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"Using synthetic forms of RS5 and RS7 to expand the genetic diversity of common wheat for disease resistance." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Novosibirsk ICG SB RAS 2021, 2021. http://dx.doi.org/10.18699/plantgen2021-036.

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Terekhova, O. A., and V. T. Sinegovskaya. "Using of multivariate forms of enzymes to assess the adaptive potential of soybean varieties Lydia to zeolites." In IX Congress of society physiologists of plants of Russia "Plant physiology is the basis for creating plants of the future". Kazan University Press, 2019. http://dx.doi.org/10.26907/978-5-00130-204-9-2019-430.

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"Effect of allelic forms of GRFs genes on the development of common wheat under different conditions of nitrogen supplementation." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Novosibirsk ICG SB RAS 2021, 2021. http://dx.doi.org/10.18699/plantgen2021-037.

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Lupascu, Galina, Svetlana Gavzer, and Nicolae Cristea. "Boli foliare la genitorii și hibrizii F1 de grâu comun de toamnă." In Scientific International Symposium "Plant Protection – Achievements and Perspectives". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2023. http://dx.doi.org/10.53040/ppap2023.50.

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Foliar diseases attack common winter wheat throughout Europe, causing enormous economic damage to this crop. The parental forms and F1 hybrids of wheat under the conditions of the experimental field (2023 year) differed significantly based on the attack of foliar diseases, in particular, yellow rust and septoriosis, which made it possible to classify them into clusters with different degrees of similarity/difference of the tested forms. Most of the F1 hybrids of wheat registered a lower degree of attack of the mentioned diseases, forming a cluster separate from the parental forms, which offers chances to identify resistant forms in progeny populations.
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Kruteakova, V., Nina V. Pilyak, V. Dishliuk, and O. Nikipelova. "Effect of Microbacterium Barkeri on the release of water-soluble forms of phosphorus in compost based on sewerage sediment." In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.26.

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In the conditions of laboratory model experiment on composting of sewage sludge the influence of active phosphate-mobilizing bacteria on the release of water-soluble forms of phosphorus was studied. The experimental scheme included known active phosphate-mobilizing bacteria isolated from various ecological niches. The following components were used for composting: sewage sludge (SS), winter wheat straw and a suspension of phosphate-mobilizing microorganisms isolated from SSs of municipal treatment plants. The largest increase in water-soluble forms of phosphorus at the final stage of composting due to the introduction of Microbacterium barkeri. The greatest growth of water-soluble forms of phosphorus at the final stage of composting is provided by the introduction of Microbacterium barkeri LP-1, which can be explained by the greater adaptation of this strain to the substrate used in the experiments.
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Siromeatnicov, Iulia, Eugenia Cotenco, and Dana Paladi. "Linii și combinații hibride de persectivă pentru obținerea soiurilor de tomate cu rezistență sporită la agenții patogeni." In Scientific International Symposium "Plant Protection – Achievements and Perspectives". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2023. http://dx.doi.org/10.53040/ppap2023.62.

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The investigated researches were oriented towards studying the dynamics of development and evolution of diseases in tomato culture with the assessment of resistance comparative of plants to pathogens visualized in field conditions (Alternaria sp.; Stolbur disease mycoplasma and Tomato mosaic virus (TMV). The research results show us that the effects caused by the disease Alternaria sp., in tomato lines cultured by seedlings were contaminated with the percentage value of 68,7%, at the same time for the parental forms cultured by seeds this disease constituted maximum values of 89.1%. The difference between perspective lines and parental forms is 20.4%. The maximum size of the values obtained in parental forms exceeds by 21.6% the outlook lines for the Stolbur disease mycoplasma.
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Reports on the topic "Plant forms"

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Vinjamuri, K. Candidate glass-ceramic waste forms for immobilization of the calcines stored at the Idaho Chemical Processing Plant. Office of Scientific and Technical Information (OSTI), November 1995. http://dx.doi.org/10.2172/119415.

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Cruz Barrera, Mauricio, Martha Isabel Gómez, Carlos Andrés Moreno, and Bettina Eichler Loberman. Strains of Trichoderma spp. and their Capacity to Mobilize Phosphorus. Corporación Colombiana de Investigación Agropecuaria - AGROSAVIA, 2016. http://dx.doi.org/10.21930/agrosavia.reporte.2016.63.

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Soil microorganisms enhance the plant availability of phosphorus (P). This ability is related to the production of organic acids and the activity of phosphatases. It is assumed that the production of organic acids solubilize insoluble phosphate forms to usable form such as orthophosphate, increasing its potential availability to plants (Vázquez et al. 2000). Filamentous fungi such as Trichoderma sp. have advantages in acid soils presenting morphological and metabolic characteristics that make them promising organisms (Nahas, 1996; Vera et al, 2002). On the other hand, inoculation of soil with phosphate solubilizing fungi has been shown to increase yields in crops like maize and wheat (Singh and Reddy, 2011), beans (Wahid and Mehana, 2000), chickpea (Kapri and Tewari, 2010).
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Chamovitz, A. Daniel, and Georg Jander. Genetic and biochemical analysis of glucosinolate breakdown: The effects of indole-3-carbinol on plant physiology and development. United States Department of Agriculture, January 2012. http://dx.doi.org/10.32747/2012.7597917.bard.

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Genetic and biochemical analysis of glucosinolate breakdown: The effects of indole-3-carbinol on plant physiology and development Glucosinolates are a class of defense-related secondary metabolites found in all crucifers, including important oilseed and vegetable crops in the Brassica genus and the well-studied model plant Arabidopsis thaliana. Upon tissue damage, such as that provided by insect feeding, glucosinolates are subjected to catalysis and spontaneous degradation to form a variety of breakdown products. These breakdown products typically have a deterrent effect on generalist herbivores. Glucosinolate breakdown products also contribute to the anti-carcinogenic effects of eating cabbage, broccoli and related cruciferous vegetables. Indole-3-carbinol, a breakdown product of indol-3-ylmethylglucosinolate, forms conjugates with several other plant metabolites. Although some indole-3-carbinol conjugates have known functions in defense against herbivores and pathogens, most play as yet unidentified roles in plant metabolism, and possibly also plant development. At the outset, our proposal had three main hypotheses: (1) There is a specific detoxification pathway for indole-3-carbinol; (2) Metabolites derived from indole-3-carbinol are phloem-mobile and serve as signaling molecules; and (3) Indole-3-carbinol affects plant cell cycle and cell-differentiation pathways. The experiments were designed to enable us to elucidate how indole-3-carbinol and related metabolites affect plants and their interactions with herbivorous insects. We discovered that indole-3- carbinol rapidly and reversibly inhibits root elongation in a dose-dependent manner, and that this inhibition is accompanied by a loss of auxin activity in the root meristem. A direct interaction between indole-3-carbinol and the auxin perception machinery was suggested, as application of indole-3-carbinol rescued auxin-induced root phenotypes. In vitro and yeast-based protein interaction studies showed that indole-3-carbinol perturbs the auxin-dependent interaction of TIR1 with Aux/IAA proteins, supporting the notion that indole-3-carbinol acts as an auxin antagonist. Furthermore, transcript profiling experiments revealed the influence of indole-3-carbinol on auxin signaling in root tips, and indole-3-carbinol also affected auxin transporters. Brief treatment with indole-3-carbinol led to a reduction in the amount of PIN1 and to mislocalization of PIN2. The results indicate that chemicals induced by herbivory, such as indole-3-carbinol, function not only to repel herbivores, but also as signaling molecules that directly compete with auxin to fine tune plant growth and development, which implies transport of indole-3- carbinol that we are as yet unsuccessful in detecting. Our results indicate that plant defensive metabolites also have secondary functions in regulating aspects of plant metabolism, thereby providing diversity in defense-related plant signaling pathways. Such diversity of of signaling by defensive metabolites would be beneficial for the plant, as herbivores and pathogens would be less likely to mount effective countermeasures. We propose that growth arrest can be mediated directly by the herbivory-induced chemicals, in our case, indole-3-carbinol. Thus, glucosinolate breakdown to I3C following herbivory would have two outcomes: (1) Indole-3-carbinaol would inhibit the herbivore, while (2) at the same time inducing growth arrest within the plant. Thus, our results indicate that I3C is a defensive phytohormone that modulates auxin signaling, leading to growth arrest.
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Crawford, C., P. Burket, A. Cozzi, W. Daniel, C. Jantzen, and D. Missimer. RADIOACTIVE DEMONSTRATION OF FINAL MINERALIZED WASTE FORMS FOR HANFORD WASTE TREATMENT PLANT SECONDARY WASTE BY FLUIDIZED BED STEAM REFORMING USING THE BENCH SCALE REFORMER PLATFORM. Office of Scientific and Technical Information (OSTI), February 2012. http://dx.doi.org/10.2172/1034392.

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Molecke, M. A., N. R. Sorensen, and G. G. Wicks. Waste Isolation Pilot Plant Materials Interface Interactions Test: Papers presented at the Commission of European Communities workshop on in situ testing of radioactive waste forms and engineered barriers. Office of Scientific and Technical Information (OSTI), August 1993. http://dx.doi.org/10.2172/10181157.

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Crawford, C., P. Burket, A. Cozzi, G. Daniel, C. Jantzen, and D. Missimer. Radioactive demonstration of final mineralized waste forms for Hanford waste treatment plant secondary waste (WTP-SW) by fluidized bed steam reforming (FBSR) using the bench scale reformer platform. Office of Scientific and Technical Information (OSTI), August 2014. http://dx.doi.org/10.2172/1151781.

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Randklev, E. H. Hanford Waste Vitrification Plant Project Waste Form Qualification Program Plan. Office of Scientific and Technical Information (OSTI), June 1993. http://dx.doi.org/10.2172/10179214.

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Chen, Yona, Jeffrey Buyer, and Yitzhak Hadar. Microbial Activity in the Rhizosphere in Relation to the Iron Nutrition of Plants. United States Department of Agriculture, October 1993. http://dx.doi.org/10.32747/1993.7613020.bard.

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Iron is the fourth most abundant element in the soil, but since it forms insoluble hydroxides at neutral and basic pH, it often falls short of meeting the basic requirements of plants and microorganisms. Most aerobic and facultative aerobic microorganisms possess a high-affinity Fe transport system in which siderophores are excreted and the consequent Fe complex is taken up via a cognate specific receptor and a transport pathway. The role of the siderophore in Fe uptake by plants and microorganisms was the focus of this study. In this research Rhizopus arrhizus was found to produce a novel siderophore named Rhizoferrin when grown under Fe deficiency. This compound was purified and its chemical structure was elucidated. Fe-Rhizoferrin was found to alleviate Fe deficiency when applied to several plants grown in nutrient solutions. It was concluded that Fe-Rhizoferrin is the most efficient Fe source for plants when compared with other among microbial siderophores known to date and its activity equals that of the most efficient synthetic commercial iron fertilizer-Fe EDDHA. Siderophores produced by several rhizosphere organisms including Rhizopus Pseudomonas were purified. Monoclonal antibodies were produced and used to develop a method for detection of the siderophores produced by plant-growth-promoting microorganisms in barley rhizosphere. The presence of an Fe-ferrichrome uptake in fluorescent Pseudomonas spp. was demonstrated, and its structural requirements were mapped in P. putida with the help of biomimetic ferrichrome analogs. Using competition experiments, it was shown that FOB, Cop B and FC share at least one common determinant in their uptake pathway. Since FC analogs did not affect FOB or Cop-mediated 55Fe uptake, it could be concluded that these siderophores make use of a different receptor(s) than FC. Therefore, recognition of Cop, FOB and FC proceeds through different receptors having different structural requirements. On the other hand, the phytosiderophores mugineic acid (MA and DMA), were utilized indirectly via ligand exchange by P. putida. Receptors from different biological systems seem to differ in their structural requirements for siderophore recognition and uptake. The design of genus- or species-specific drugs, probes or chemicals, along with an understanding of plant-microbe and microbe-microbe relationships as well as developing methods to detect siderophores using monoclonal antibodies are useful for manipulating the composition of the rhizosphere microbial population for better plant growth, Fe-nutrition and protection from diseases.
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Gafni, Yedidya, and Vitaly Citovsky. Inactivation of SGS3 as Molecular Basis for RNA Silencing Suppression by TYLCV V2. United States Department of Agriculture, November 2013. http://dx.doi.org/10.32747/2013.7593402.bard.

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The Israeli isolate of Tomato yellow leaf curl geminivirus(TYLCV-Is) is a major tomato pathogen, causing extensive crop losses in Israel and in the south-eastern U.S. Yet, little is known about the molecular mechanisms of its interaction with tomato cells. One of the most interesting aspects of such interaction is how the invading virus counteracts the RNA silencing response of the plant. In the former BARD project, we have shown that TYLCV-Is V2 protein is an RNA silencing suppressor, and that this suppression is carried out via the interaction of V2 with the SGS3 component of the plant RNA silencing machinery. This reported project was meant to use our data as a foundation to elucidate the molecular mechanism by which V2 affects the SGS3 activity. While this research is likely to have an important impact on our understanding of basic biology of virus-plant interactions and suppression of plant immunity, it also will have practical implications, helping to conceive novel strategies for crop resistance to TYLCV-Is. Our preliminary data in regard to V2 activities and our present knowledge of the SGS3 function suggest likely mechanisms for the inhibitory effect of V2 on SGS3. We have shown that V2 possess structural and functional hallmarks of an F-box protein, suggesting that it may target SGS3 for proteasomal degradation. SGS3 contains an RNA-binding domain and likely functions to protect the cleavage produces of the primary transcript for subsequent conversion to double-stranded forms; thus, V2 may simply block the RNA binding activity of SGS3. V2 may also employ a combination of these mechanisms. These and other possibilities were tested in this reported project.
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Elmann, Anat, Orly Lazarov, Joel Kashman, and Rivka Ofir. therapeutic potential of a desert plant and its active compounds for Alzheimer's Disease. United States Department of Agriculture, March 2015. http://dx.doi.org/10.32747/2015.7597913.bard.

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We chose to focus our investigations on the effect of the active forms, TTF and AcA, rather than the whole (crude) extract. 1. To establish cultivation program designed to develop lead cultivar/s (which will be selected from the different Af accessions) with the highest yield of the active compounds TTF and/or achillolide A (AcA). These cultivar/s will be the source for the purification of large amounts of the active compounds when needed in the future for functional foods/drug development. This task was completed. 2. To determine the effect of the Af extract, TTF and AcA on neuronal vulnerability to oxidative stress in cultured neurons expressing FAD-linked mutants.Compounds were tested in N2a neuroblastoma cell line. In addition, we have tested the effects of TTF and AcA on signaling events promoted by H₂O₂ in astrocytes and by β-amyloid in neuronal N2a cells. 3. To determine the effect of the Af extract, TTF and AcA on neuropathology (amyloidosis and tau phosphorylation) in cultured neurons expressing FAD-linked mutants. 4. To determine the effect of A¦ extract, AcA and TTF on FAD-linked neuropathology (amyloidosis, tau phosphorylation and inflammation) in transgenic mice. 5. To examine whether A¦ extract, TTF and AcA can reverse behavioral deficits in APPswe/PS1DE9 mice, and affect learning and memory and cognitive performance in these FAD-linked transgenic mice. Background to the topic.Neuroinflammation, oxidative stress, glutamate toxicity and amyloid beta (Ab) toxicity are involved in the pathogenesis of Alzheimer's diseases. We have previously purified from Achilleafragrantissimatwo active compounds: a protective flavonoid named 3,5,4’-trihydroxy-6,7,3’-trimethoxyflavone (TTF, Fl-72/2) and an anti-inflammatory sesquiterpenelactone named achillolide A (AcA). Major conclusions, solutions, achievements. In this study we could show that TTF and AcA protected cultured astrocytes from H₂O₂ –induced cell death via interference with cell signaling events. TTF inhibited SAPK/JNK, ERK1/2, MEK1 and CREBphosphorylation, while AcA inhibited only ERK1/2 and MEK1 phosphorylation. In addition to its protective activities, TTF had also anti-inflammatory activities, and inhibited the LPS-elicited secretion of the proinflammatorycytokinesInterleukin 6 (IL-6) and IL-1b from cultured microglial cells. Moreover, TTF and AcA protected neuronal cells from glutamate and Abcytotoxicity by reducing the glutamate and amyloid beta induced levels of intracellular reactive oxygen species (ROS) and via interference with cell signaling events induced by Ab. These compounds also reduced amyloid precursor protein net processing in vitro and in vivo in a mouse model for Alzheimer’s disease and improvedperformance in the novel object recognition learning and memory task. Conclusion: TTF and AcA are potential candidates to be developed as drugs or food additives to prevent, postpone or ameliorate Alzheimer’s disease. Implications, both scientific and agricultural.The synthesis ofAcA and TTF is very complicated. Thus, the plant itself will be the source for the isolation of these compounds or their precursors for synthesis. Therefore, Achilleafragrantissima could be developed into a new crop with industrial potential for the Arava-Negev area in Israel, and will generate more working places in this region.
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