Academic literature on the topic 'Plant Sciences'

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Journal articles on the topic "Plant Sciences"

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Sablowski, R. "PLANT SCIENCES: Enhanced: Plant Genes on Steroids." Science 307, no. 5715 (March 11, 2005): 1569–70. http://dx.doi.org/10.1126/science.1110534.

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Arntzen, Charles J. "Funding for Plant Sciences." Plant Cell 1, no. 1 (January 1989): 1. http://dx.doi.org/10.2307/3869056.

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Moir, Jim. "Trends in plant sciences." New Zealand Journal of Agricultural Research 65, no. 4-5 (May 12, 2022): 249–51. http://dx.doi.org/10.1080/00288233.2022.2066962.

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Hines, P. J. "PLANT SCIENCES: Enabling Traffic." Science 308, no. 5718 (April 1, 2005): 19b. http://dx.doi.org/10.1126/science.308.5718.19b.

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Moir, Jim. "Advances in Plant Sciences." New Zealand Journal of Agricultural Research 63, no. 3 (July 2, 2020): 269–71. http://dx.doi.org/10.1080/00288233.2020.1782264.

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Stoll, Alexandra, and Francisco A. Squeo. "Latin American plant sciences: from early naturalists to modern science." Plant Ecology & Diversity 5, no. 2 (June 2012): 147–51. http://dx.doi.org/10.1080/17550874.2012.734867.

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Malik, C. P., and Bratati Roy. "New Horizons of Plant Sciences." Journal of Plant Science Research 37, no. 2 (November 29, 2021): 225–36. http://dx.doi.org/10.32381/jpsr.2021.37.02.2.

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Malik, C. P. "Advances in Plant Sciences Research." JOURNAL OF PLANT SCIENCE RESEARCH 34, no. 2 (December 5, 2018): 293–310. http://dx.doi.org/10.32381/jpsr.2018.34.02.18.

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Malik, CP. "Advancing Trends in Plant Sciences." Journal of Plant Science Research 35, no. 1 (May 21, 2019): 85–107. http://dx.doi.org/10.32381/jpsr.2019.35.01.9.

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Cho, Hyung-Taeg. "Focus: Plant sciences in Korea." Physiologia Plantarum 126, no. 4 (March 30, 2006): 469–74. http://dx.doi.org/10.1111/j.1399-3054.2006.00706.x.

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Dissertations / Theses on the topic "Plant Sciences"

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Harper, Lisa Janine. "Plant galls : a model system to study plant development." Thesis, Queen Mary, University of London, 2002. http://qmro.qmul.ac.uk/xmlui/handle/123456789/25126.

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Cynipid gall formation is achieved by the intimate insect-plant interaction where by cynipid wasps redirect host plant development to form novel structures to protect and nourish the developing larva. To investigate the molecular mechanisms involved in this interaction, and extend our understanding of plant development, four approaches were taken. 1) A PCR based approach to search for genes to known signalling molecules: chitiooligosaccharides, or Nod factors, that control nodulation in the Rhizobia-legume interaction. PCR analysis was used to investigate the presence of the nodC gene in the cynipid gall wasp genome,h owever, no nodC-like sequencesw ere found. 2) SDS-PAGE analysis was carried out to compare inner-gall and non-gall protein signatures, demonstrating the variation between gall and non-gall tissue, and also that the protein signatures of inner-gall tissues vary between gall species. N-terminal sequencing and western blot analysis lead to the identification of a number of innergall proteins such as protein disulphide isomerase (PDI), formate dehydrogenase (FDH) and putative biotin carboxyl carrier protein (BCCP), involved in the synthesis of lipids in seeds. Analysis of the temporal and spatial expression of the putative BCCP revealed expression to be concentrated in the inner-gall cells throughout development, in all the gall species tested. 3) Cytological analysis of the inner-gall tissue was carried out throughout development of several gall species to investigate differences in their patterns of development and cytological characteristics of the inner-gall tissue, with many inner-gall cells being polytene. 4) A gall formation bioassay, to enable the activity of possible signals involved in gall formation to be tested, was developed. Rose callus tissue was used as a test tissue and the cynipid larval extract was exposed to this as a source of the active molecules. The induction of proteins in the callus after exposure to the larval extract was used as a molecular marker for activity. The polytene characteristic and the possible expression of seed proteins, suggest that seed developmental pathways may be used during gall formation.
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Decker, Allyssa. "Evaluating native plant survival on a mid-western green roof." Thesis, Southern Illinois University at Edwardsville, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10196548.

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Green roofs have many ecological benefits that address numerous modern environmental issues. Many studies have evaluated Sedums on green roofs; on the other hand, there is much interest in native plant performance on a green roof. In my study, Green Roof Blocks were planted with 3 experimental treatments: native plants only; native species plus Sedums; and Sedums only. The native species only treatment consisted of Eragrostis spectabilis, Coreopsis lanceolata, Penstemon pallidus, Penstemon hirsutus, Koeleria marcantha, Rudbeckia hirta, Aster laevis and Carex muhlenbergii. These areas were planted with one plug per native species for a total of eight plugs per Green Roof Block. Natives were interspersed between existing Sedum plantings in the native species plus Sedum planting treatment. There was again one plug per six species, but only six native plugs per block. The species in these planting areas were Bouteloua gracilis, Buchloe dactyloides, Asclepius verticillata, Bouteloua curtipendula, Geum triflorum and Sporobolus cryptandrus. All native plants were planted in the two treatments on 5/29/2013 and 6/5/2013. All plants in the study plots were irrigated weekly as needed in 2013 and 2014. On November 7 and 8, 2013, June 10 and 23, 2014, June 2015, November 2015, and April 2016 native plant survival was measured. In the plots with natives only, survival ranged from 0 to 86 percent at the end of the study. To date, Coreopsis lanceolata and Penstemon pallidus have the greatest percent survival in the natives only planting area at 86 and 45 percent respectively. In the plots with natives plus Sedums, native plant survival ranged from 0 to 70 percent at the end of the study. Survival of the four native grasses was greater than 99 percent in the first growing season. To date, the only native species remaining in the natives plus Sedums planting area is Buchloe dactyloides, with about 70 percent survival. In addition, the forb Coreopsis lanceolata has rapidly spread outside the initial planting areas, indicating that this native species not only survives on the roof, but is able to reproduce successfully.

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Frances, Anne. "A study of Guaymi and Tico Homegardens In Southern Costa Rica." FIU Digital Commons, 2003. https://digitalcommons.fiu.edu/etd/3629.

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Manley, Paul V. II. "Plant functional trait and hyperspectral reflectance responses to Comp B exposure: efficacy of plants as landmine detectors." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4075.

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At least 110 million landmines have been planted since the 1970s in about 70 nations, many of which remain in place today. Some risk of detection may be mitigated using currently available remote sensing techniques when vegetation is present. My study focused on using plants as phytosensors to detect buried explosives. I exposed three species representing different functional types (Cyperus esculentus (sedge), Ulmus alata (tree), Vitis labrusca (vine)) to 500 mg kg-1 of Composition B (Comp B; 60/40 mixture of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and 2,4,6-trinitrotoluene (TNT)), a commonly used explosive mixture, and measured functional traits and reflectance over a nine-week period. Cyperus esculentus was not a good indicator for the presence of explosive compounds. Comp B treatment woody species, U. alata and V. labrusca, exhibited changes in pigment content, leaf area, specific leaf area, dry leaf biomass, and canopy reflectance. The efficacy of plants as landmine detectors is species and/or functional group dependent.
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Packer, Kirsten F. "Evaluating the importance of root abscission versus efflux to plant N-loss: consequences for plant N-isotope composition." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/28152.

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The common observation that plant δ¹⁵N values are lower than those of associated soil is generally attributed to transporter-facilitated efflux of ¹⁵N-enriched N. N efflux tends to occur under specific conditions, for instance, when the external N concentration is high, when the external medium is acidic and when roots experience mechanical stress. While efflux is presumed to act as a regulator of cytoplasmic N concentrations, it is energetically costly for plants to take up N only to release it back into the rhizosphere. A link between root tissue loss (e.g. root turnover or rhizodeposition) and plant δ¹⁵N has not been suggested, although root abscission is likely to be more ubiquitous than N efflux. This thesis questions the extent to which N efflux and root abscission contribute to plant N-loss and plant δ¹⁵N values. I hypothesized that: (1) plants supplied with more N would have more negative δ¹⁵N relative to the source, and greater root abscission from a relatively larger root biomass (2) the aeration necessary for hydroponic culture can act as a mechanical stressor on roots, accentuating plant N-loss through root abscission and N efflux. Wheat was grown in sand with NO₃- supplied at five relative addition rates (RAR) and in hydroponics with three physical disturbance regimes (direct aeration, aeration constrained within a pipe and circulation of nutrient solution through sand). The δ¹⁵N of roots and shoots, as well as the plant-derived N accumulation in both growth mediums, were determined. When the N supply matched the plant N demand, as determined by the relative growth rate, there was no discrimination between plant and source δ¹⁵N. N-loss here, although negligible, was in the organic form, which implies root abscission. By contrast, when N supply exceeded plant N demand, plant δ¹⁵N values decreased (e.g. after 47 d, plant δ¹⁵N of RAR 0.075 d⁻¹ was 0.4‰ but was −4.1‰ at RAR 0.175 d⁻¹) because they lost ¹⁵N-enriched N. This N was largely inorganic and presumably lost through efflux. In disturbed hydroponic conditions (i.e. direct and pipe treatments), root 'fragments' were a major biomass- (six-fold greater than root dry weight) and N-loss (two-fold greater than plant net N uptake) pathway. Plants from all treatments lost more N within root fragments than through efflux, although the cumulative N-loss was significantly smaller from plants grown in relatively undisturbed hydroponic conditions (i.e. sand). This suggests that root abscission is likely to be an important N-loss pathway for plants and thus contributes to the global offset between plant and soil δ¹⁵N values. Moreover, efforts to improve nitrogen use efficiency of crop plants, though reduced efflux, need to take cognizance of root abscission because it is an unavoidable artefact of root growth.
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Vandeputte, Olivier M. "Molecular bases of the Rhodococcus fascians - plant interaction :bacterial signal molecules and early plant gene responses." Doctoral thesis, Universite Libre de Bruxelles, 2003. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211252.

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Jackson, Robert B. "Soil Heterogeneity and its Exploitation by Plants." DigitalCommons@USU, 1992. https://digitalcommons.usu.edu/etd/6512.

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In this dissertation I first examine the ability of individual plants in the field to garner localized soil nutrients. I then measure actual soil variability around perennial plants and use various statistics to quantify the scale and degree of that variability. Soil patches on opposite sides of Pseudoroegneria spicata tussocks were treated with distilled water or a nutrient solution containing N, P, or K in three field experiments. When P was augmented in the enriched soil patches, rates of P uptake increased significantly for roots from enriched patches compared with roots in control patches. Rates of ammonium and potassium uptake were apparently unchanged. When N was augmented in the enriched patches, rates of ammonium and potassium uptake increased significantly. When K was augmented in the enriched patches, no changes were seen for any of the nutrients. Plant shading was found to limit the ability of Agropyron desertorum tussocks to increase rates of nutrient uptake in enriched soil microsites. Roots of unshaded plants selectively increased phosphate uptake capacity in enriched patches by up to 73%, but shading limited this response. Enrichment of the soil patches resulted in significantly greater phosphate concentrations in roots of both shaded and unshaded plants. Nutrient heterogeneity in the soil at a native sagebrush-steppe site was quite high, with ammonium and nitrate varying by over two orders of magnitude and phosphate and potassium close to one order of magnitude within a 10x12- m area. Within 0.5x0.5-m subplots around individual plants, ammonium and nitrate varied by an average factor of 11 and 12, respectively, with less average variation for phosphate and potassium. Geostatistical semivariograms showed that soil ammonium, nitrate, phosphate, potassium, pH, and organic matter all showed detectable autocorrelation only at scales of less than 1.0 to 1.5 m. Indices of microbial activity showed no detectable autocorrelation even at the smallest measurement scale of 12.5 cm. From the degree and scale of heterogeneity encountered, I conclude that root plasticity and active foraging in a heterogeneous soil environment are likely to be important to the nutrient balance of many plants.
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Schuchman, Rachel. "Storm Water Retention of Native and Sedum Green Roofs." Thesis, Southern Illinois University at Edwardsville, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10111534.

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Green roofs are an established best management practice (BMP) for storm water mitigation because of their ability to retain precipitation runoff. The purpose of this study was to quantify storm water retention of Sedum and native plant green roof systems at three substrate depths (10, 15, 20 cm). Survival of plants on green roof systems is dependent on how quickly they can establish themselves. This study also determined native and Sedum plant roof surface coverage at three green roof growth media depths (10, 15, 20 cm). A mixture of six Sedum species (S. spurium, S. sexangulare, S. album, S. Immergrunchen, S. kamtschaticum, and S. reflexum) and four native species (Sporolus cryplandrus, Boutelous curtipendula, B. gracilis , and Penstamen pallidus) were planted into the built-in-place systems (BIPs) on June 20, 2014.

There were 137 precipitation events totaling to 158.2 cm during the entire (June 20, 2014-June 30, 2015) study period and there were 87 precipitation events with a total precipitation of 108.1 cm during storm water collection (Oct. 31, 2015 until June 30, 2015). During the study period, mean storm water retention of green roof systems planted with native (>58%) and Sedum (>53%) species were identical regardless of growth media depth. Mean storm water retention in green roof systems planted with native and Sedum species in all growth media depths were greater than mean storm water retention of non-vegetated roof models (32%).

Green roof plant surface coverage plays an important role in water retention of storm water runoff. During the dormant period (January 23, 2015), roof coverage by Sedum plants was greater than roof coverage by native plants. In addition, green roof surface coverage by Sedum plants was the same regardless of depth (>89%). Green roof surface coverage of native plants in 10 cm depth achieved less coverage than native plants in 15 and 20 cm depths. These results differ from the plant-growing season (June 30, 2015). Green roof surface coverage by native plants in green roof systems with 15 and 20 cm growth media depth were identical to the roof coverage by Sedum plants in green roof systems with 10, 15, or 20 growth media depth. Green roof surface coverage by native plants in green roof systems with 10 cm growth media depth was less than the roof coverage in all green roof systems in this study.

Analysis of covariance was used to determine if green roof surface coverage by native and Sedum plants affected mean storm water retention. During the study period green roof surface coverage by native and Sedum plants did not affect storm water retention regardless of growth media depth.

This green roof research demonstrates that green roof systems planted with native plant species are effective tools for retaining storm water in the mid-western region of the United States. After 9 months, there was no difference in storm water retention between native and Sedum species planted in 10, 15, and 20 cm growth media depth. Each green roof module retained more storm water than the traditional, non-vegetated roof model. Both native and Sedum species planted on green roofs in 10, 15, and 20 cm media depth achieved more than 69 percent green roof surface coverage after nine months.

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Zukowski, Daniel. "A mobile and cloud-based framework for plant stress detection from crowdsourced visual and infrared imagery." Thesis, University of Colorado at Boulder, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10124049.

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A cloud infrastructure and Android-based system were developed to enable amateurs and professionals to make use of laboratory techniques for remote plant disease detection. The system allows users to upload and analyze plant data as citizen scientists, helping to improve models for remote disease detection in horticultural settings by greatly increasing the quantity and diversity of data available for analysis by the community. Techniques used in research laboratories for remote disease detection are generally not available to home gardeners and small commercial farmers. Lab equipment is cost-prohibitive and experiments highly controlled, leading to models that are not necessarily transferable to the user’s environment. Plant producers rely on expert knowledge from training, experience, and extension service professionals to accurately and reliably diagnose and quantify plant health. Techniques for disease detection using visible and infrared imagery have been proven in research studies and can now be made available to individuals due to advancements in smartphones and low-cost thermal imaging devices. The framework presented in this paper provides an internet-accessible data pipeline for image acquisition, preprocessing, stereo rectification, disparity mapping, registration, feature extraction, and machine learning, designed to support research efforts and to make plant stress detection technology readily available to the public. A system of this kind has the potential to benefit both researchers and plant growers: producers can collectively create large labeled data sets which researchers can use to build and improve detection models, returning value to growers in the form of generalizable models that work in real-world horticultural settings. We demonstrate the components of the framework and show data from a water stress experiment on basil plants performed using the mobile app and cloud-based services.

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Ballhaus, Florentine. "Investigating plant autophagy with new chemical modulators." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-428075.

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Autophagy is a major catabolic pathway in which cell components get sequestered in a double membrane vesicle, transported to the vacuole, degraded by vacuolar hydrolases and recycled.  Through this process, cells ensure cell homeostasis and remobilise nutrients. The autophagic flux can be enhanced as an adaptive stress response, improving plants resistance against stress, reducing aging and ultimately increasing yield. However, autophagy regulation in plants remains poorly understood.  Novel plant-specific modulators can be used in a chemical genetic approach for identification of proteins involved in the autophagy pathway. Furthermore, autophagy enhancers can find their application in agriculture for improved plant fitness. Known autophagy modulators have severe off-target effects, affecting plant growth and development. A recent screening identified two potential autophagy modulators. We developed a novel method for photoaffinity labelling and pulldown assay in Arabidopsis thaliana to identify potential interactors of the modulators. The identification of autophagy-related proteins will help to further elucidate the autophagic pathway in plants. The effect of the new autophagy enhancers on plant growth and development was analysed by automated growth assays. In comparison with a currently available autophagy enhancer, treated plants showed higher viability, indicating possible further applications for the new autophagy modulators in planta.
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Books on the topic "Plant Sciences"

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1956-, Robinson Richard, ed. Plant sciences. New York: Macmillan Reference USA, 2001.

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General, Colloquium on Plant Sciences (1st 1991 La Colle-sur-Loup France). Plant sciences today: First General Colloquium on Plant Sciences. Paris: Institut national de la recherche agronomique, 1991.

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Hemming, D., ed. Plant Sciences Reviews 2010. Wallingford: CABI, 2011. http://dx.doi.org/10.1079/9781845938789.0000.

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Hemming, D., ed. Plant Sciences Reviews 2012. Wallingford: CABI, 2013. http://dx.doi.org/10.1079/9781780643007.0000.

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Siddiqui, Manzer H., Mohamed H. Al-Whaibi, and Firoz Mohammad, eds. Nanotechnology and Plant Sciences. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14502-0.

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Hemming, D., ed. Plant Sciences Reviews 2011. Wallingford: CABI, 2012. http://dx.doi.org/10.1079/9781780640150.0000.

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Linskens, Hans-Ferdinand, and John F. Jackson, eds. Immunology in Plant Sciences. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82853-9.

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L, Rost Thomas, ed. Plant biology. Belmont, CA: Wadsworth Pub. Co., 1998.

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Lack, Andrew. Plant biology. Oxford: BIOS Scientific Publishers, 2001.

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Roberts, K. Handbook of plant science. Edited by Roberts K. Chichester, West Sussex, England: Wiley, 2007.

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Book chapters on the topic "Plant Sciences"

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Körner, Christian. "Plant–Environment Interactions." In Strasburger's Plant Sciences, 1065–166. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-15518-5_12.

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Schwarz, Meier. "Plant Growth Effects and Plant Tests." In Advanced Series in Agricultural Sciences, 123–30. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79093-5_8.

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Sembdner, G., and D. Gross. "Plant Growth Substances of Plant and Microbial Origin." In Proceedings in Life Sciences, 139–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71018-6_17.

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Glauser, Gaétan, Julien Boccard, Jean-Luc Wolfender, and Serge Rudaz. "Metabolomics: Application in Plant Sciences." In Metabolomics in Practice, 313–43. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527655861.ch13.

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Ghosh, Shyamasree, and Rathi Dasgupta. "Machine Learning and Plant Sciences." In Machine Learning in Biological Sciences, 275–86. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8881-2_32.

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Bornman, C. H., and J. F. Bornman. "Plant Protoplast Viability." In Proceedings in Life Sciences, 29–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70144-3_5.

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Körner, Christian. "Basics of Plant Ecology." In Strasburger's Plant Sciences, 1043–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-15518-5_11.

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Lee, Xuhui. "Flow in Plant Canopies." In Springer Atmospheric Sciences, 81–100. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-60853-2_5.

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Buell, C. Robin. "Plant Genome Sequencing Methods." In Molecular Life Sciences, 1–8. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-6436-5_102-2.

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Shiu, Shin-Han. "Evolution of Plant Genomes." In Molecular Life Sciences, 1–7. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-6436-5_105-2.

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Conference papers on the topic "Plant Sciences"

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Woody, Scott. "GameteMaker: An Online Resource to Enhance Student Understanding of Genetic and Gemic Sciences Through Gene Mapping Experiments." In ASPB PLANT BIOLOGY 2020. USA: ASPB, 2020. http://dx.doi.org/10.46678/pb.20.531631.

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Lehmitz, Matthew. "Plant Satellite Project." In 2018 AIAA Aerospace Sciences Meeting. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-1505.

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Rivai, Reza Ramdan, Yupi Isnaini, and Yuzammi. "Elucidation of the Radiosensitivity Level of Amorphophallus paeoniifolius (Dennst.) Nicolson Embryogenic Callus Induced by Gamma Ray Irradiation." In International Electronic Conference on Plant Sciences. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/iecps2021-11951.

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Garcia-Ibañez, Paula, Diego A. Moreno, and Micaela Carvajal. "Salinity Stress in Red Radish Crops." In International Electronic Conference on Plant Sciences. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/iecps2021-12000.

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Poudel, Pragya Dhakal, Max Cowan, Bruce Topp, and Mobashwer Alam. "Evaluating Seven Macadamia Seedling and Cutting Rootstocks for Their Effect on Scion Growth." In International Electronic Conference on Plant Sciences. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/iecps2021-12040.

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Silva, Bruna Alves da, Carolina Souza de Castro, Johny de Souza Silva, Rafael Santiago da Costa, Flávio Barcellos Cardoso, and Rosilene Oliveira Mesquita. "A Biostimulant Based on Algae Extract and Fulvic Acids Is Able to Improve Photosynthetic Performance and Mitigate the Effects of Salinity in Soybean." In International Electronic Conference on Plant Sciences. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/iecps2021-12041.

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Morais, Maria C., Helena Ferreira, and Berta Gonçalves. "Dynamics of Non-Structural Carbohydrates Reserves in Leaves of Two Perennial Woody Species, Hakea sericea and Pinus pinaster." In International Electronic Conference on Plant Sciences. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/iecps2021-12012.

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Nguyen, Truong Duc, Bruce Topp, and Mobashwer Alam. "Image-Based Phenotyping of Shell Thickness Revealed Strong Association with Kernel Recovery in Macadamia." In International Electronic Conference on Plant Sciences. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/iecps2021-12037.

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Paniagua, Candelas, Cristina Sánchez-Raya, Rosario Blanco-Portales, Jose A. Mercado, Elena Palomo-Ríos, and Sara Posé. "Silencing of FaPG1, a Fruit Specific Polygalacturonase Gene, Decreased Strawberry Fruit Fungal Decay during Postharvest." In International Electronic Conference on Plant Sciences. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/iecps2021-12049.

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Lenards, Andrew, Nirav Merchant, and Dan Stanzione. "Building an environment to facilitate discoveries for plant sciences." In the 2011 ACM workshop. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/2110486.2110494.

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Reports on the topic "Plant Sciences"

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Poff, K. L., and W. R. Gordon. Minority summer research program in plant sciences. Office of Scientific and Technical Information (OSTI), January 1998. http://dx.doi.org/10.2172/567440.

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Poff, Kenneth L. Minority Summer Research Program in the Plant Sciences. Office of Scientific and Technical Information (OSTI), August 2004. http://dx.doi.org/10.2172/899895.

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Wolk, C. P. Interdisciplinary Research and Training Program in the Plant Sciences. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/7206404.

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Wolk, C. P. Interdisciplinary research and training program in the plant sciences. Office of Scientific and Technical Information (OSTI), January 1991. http://dx.doi.org/10.2172/5026574.

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Wolk, C. P. Interdisciplinary Research and Training Program in the Plant Sciences. Technical progress report, February 1, 1991--November 30, 1992. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/10153500.

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Haase, C. S., G. A. Gillis, and H. L. King. Fiscal year 1985 groundwater investigation drilling program at the Y-12 Plant, Oak Ridge, Tennessee: Environmental Sciences Division publication No. 2805. Office of Scientific and Technical Information (OSTI), January 1987. http://dx.doi.org/10.2172/7163675.

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Ostersetzer-Biran, Oren, and Jeffrey Mower. Novel strategies to induce male sterility and restore fertility in Brassicaceae crops. United States Department of Agriculture, January 2016. http://dx.doi.org/10.32747/2016.7604267.bard.

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Abstract Mitochondria are the site of respiration and numerous other metabolic processes required for plant growth and development. Increased demands for metabolic energy are observed during different stages in the plants life cycle, but are particularly ample during germination and reproductive organ development. These activities are dependent upon the tight regulation of the expression and accumulation of various organellar proteins. Plant mitochondria contain their own genomes (mtDNA), which encode for rRNAs, tRNAs and some mitochondrial proteins. Although all mitochondria have probably evolved from a common alpha-proteobacterial ancestor, notable genomic reorganizations have occurred in the mtDNAs of different eukaryotic lineages. Plant mtDNAs are notably larger and more variable in size (ranging from 70~11,000 kbp in size) than the mrDNAs in higher animals (16~19 kbp). Another unique feature of plant mitochondria includes the presence of both circular and linear DNA fragments, which undergo intra- and intermolecular recombination. DNA-seq data indicate that such recombination events result with diverged mitochondrial genome configurations, even within a single plant species. One common plant phenotype that emerges as a consequence of altered mtDNA configuration is cytoplasmic male sterility CMS (i.e. reduced production of functional pollen). The maternally-inherited male sterility phenotype is highly valuable agriculturally. CMS forces the production of F1 hybrids, particularly in predominantly self-pollinating crops, resulting in enhanced crop growth and productivity through heterosis (i.e. hybrid vigor or outbreeding enhancement). CMS lines have been implemented in some cereal and vegetables, but most crops still lack a CMS system. This work focuses on the analysis of the molecular basis of CMS. We also aim to induce nuclear or organellar induced male-sterility in plants, and to develop a novel approach for fertility restoration. Our work focuses on Brassicaceae, a large family of flowering plants that includes Arabidopsis thaliana, a key model organism in plant sciences, as well as many crops of major economic importance (e.g., broccoli, cauliflower, cabbage, and various seeds for oil production). In spite of the genomic rearrangements in the mtDNAs of plants, the number of genes and the coding sequences are conserved among different mtDNAs in angiosperms (i.e. ~60 genes encoding different tRNAs, rRNAs, ribosomal proteins and subunits of the respiratory system). Yet, in addition to the known genes, plant mtDNAs also harbor numerous ORFs, most of which are not conserved among species and are currently of unknown function. Remarkably, and relevant to our study, CMS in plants is primarily associated with the expression of novel chimericORFs, which likely derive from recombination events within the mtDNAs. Whereas the CMS loci are localized to the mtDNAs, the factors that restore fertility (Rfs) are identified as nuclear-encoded RNA-binding proteins. Interestingly, nearly all of the Rf’s are identified as pentatricopeptide repeat (PPR) proteins, a large family of modular RNA-binding proteins that mediate several aspects of gene expression primarily in plant organelles. In this project we proposed to develop a system to test the ability of mtORFs in plants, which are closely related to known CMS factors. We will induce male fertility in various species of Brassicaceae, and test whether a down-relation in the expression of the recombinantCMS-genes restores fertility, using synthetically designed PPR proteins.
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Chamovitz, Daniel A., and Albrecht G. Von Arnim. eIF3 Complexes and the eIF3e Subunit in Arabidopsis Development and Translation Initiation. United States Department of Agriculture, September 2009. http://dx.doi.org/10.32747/2009.7696545.bard.

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The original working hypothesis of our proposal was that The “e” subunit of eIF3 has multiple functions from both within the nucleus and in the cytoplasm. Within this model, we further hypothesized that the “e” subunit of eIF3 functions in translation as a repressor. We proposed to test these hypotheses along the following specific aims: 1) Determine the subcellular localization of the interaction between eIF3e and other eIF3 subunits, or the COP9 signalosome. 2) Elucidate the biological significance of the varied subcellular localizations of eIF3e through generating Arabidopsis eIF3e alleles with altered subcellular localization. 3.) Purify different eIF3e complexes by tandem affinity purification (TAP). 4) Study the role of eIF3e in translational repression using both in vitro and in planta assays. eIF3 is an evolutionarily ancient and essential component of the translational apparatus in both the plant and animal kingdoms. eIF3 is the largest, and in some ways the most mysterious, of the translation factors. It is a multi-subunit protein complex that has a structural/scaffolding role in translation initiation. However, despite years of study, only recently have differential roles for eIF3 in the developmental regulation of translation been experimentally grounded. Furthermore, the roles of individual eIF3 subunits are not clear, and indeed some, such as the “e” subunit may have roles independent of translation initiation. The original three goals of the proposal were technically hampered by a finding that became evident during the course of the research – Any attempt to make transgenic plants that expressed eIF3e wt or eIF3e variants resulted in seedling lethality or seed inviability. That is, it was impossible to regenerate any transgenic plants that expressed eIF3e. We did manage to generate plants that expressed an inducible form of eIF3e. This also eventually led to lethality, but was very useful in elucidating the 4th goal of the research (Yahalom et al., 2008), where we showed, for the first time in any organism, that eIF3e has a repressory role in translation. In attempt to solve the expression problems, we also tried expression from the native promoter, and as such analyzed this promoter in transgenic plants (Epel, 2008). As such, several additional avenues were pursued. 1) We investigated protein-protein interactions of eIF3e (Paz-Aviram et al., 2008). 2) The results from goal #4 led to a novel hypothesis that the interaction of eIF3e and the CSN meets at the control of protein degradation of nascent proteins. In other words, that the block in translation seen in csn and eIF3e-overexpressing plants (Yahalom et al., 2008) leads to proteasome stress. Indeed we showed that both over expression of eIF3e and the csn mutants lead to the unfolded protein response. 3) We further investigated the role of an additional eIF3 subunit, eIF3h, in transalational regulation in the apical meristem (Zhou et al., 2009). Epel, A. (2008). Characterization of eIF3e in the model plant Arabidopsis thaliana. In Plant Sciences (Tel Aviv, Tel Aviv University). Paz-Aviram, T., Yahalom, A., and Chamovitz, D.A. (2008). Arabidopsis eIF3e interacts with subunits of the ribosome, Cop9 signalosome and proteasome. Plant Signaling and Behaviour 3, 409-411. Yahalom, A., Kim, T.H., Roy, B., Singer, R., von Arnim, A.G., and Chamovitz, D.A. (2008). Arabidopsis eIF3e is regulated by the COP9 signalosome and has an impact on development and protein translation. Plant J 53, 300-311. Zhou, F., Dunlap, J.R., and von Arnim, A.G. The translation initiation factor subunit eIF3h is .1 involved in Arabidopsis shoot apical meristem maintenance and auxin response. (submitted to Development).
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Hahn, Heidi A. Engineering Sciences Strategic Leadership Plan. Office of Scientific and Technical Information (OSTI), February 2014. http://dx.doi.org/10.2172/1120722.

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Yelick, Kathy, Deb Agarwal, Debbie Bard, John Shalf, Ann Almgren, Wahid Bhimji, Ben Brown, et al. 2019 Computing Sciences Strategic Plan. Office of Scientific and Technical Information (OSTI), October 2021. http://dx.doi.org/10.2172/1827673.

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