Academic literature on the topic 'Phytohormones'

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Journal articles on the topic "Phytohormones"

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Avksentieva, O. "Phytohormonal balance in leaves of the soft wheat lines isogenic for VRN genes." Journal of V. N. Karazin Kharkiv National University, Series "Biology", no. 40 (June 26, 2023): 49–58. http://dx.doi.org/10.26565/2075-5457-2023-40-4.

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The paper presents results of the study of the phytohormonal balance in mature, formed leaves of the lines of common wheat (Triticum aestivum L.) of the winter variety Olvia during the transition from vegetative to generative development. Near isogenic for the VRN genes lines (NILs) created in the gene pool of the Olvia variety and plants of the vernalized and non-vernalized winter variety were used. The experiments were carried out under the conditions of a vegetation experiment in the factorial chamber of the Department of Physiology and Biochemistry of Plants and Microorganisms of the V.N.
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Wawrzyńska, Anna, and Agnieszka Sirko. "Sulfate Availability and Hormonal Signaling in the Coordination of Plant Growth and Development." International Journal of Molecular Sciences 25, no. 7 (2024): 3978. http://dx.doi.org/10.3390/ijms25073978.

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Sulfur (S), one of the crucial macronutrients, plays a pivotal role in fundamental plant processes and the regulation of diverse metabolic pathways. Additionally, it has a major function in plant protection against adverse conditions by enhancing tolerance, often interacting with other molecules to counteract stresses. Despite its significance, a thorough comprehension of how plants regulate S nutrition and particularly the involvement of phytohormones in this process remains elusive. Phytohormone signaling pathways crosstalk to modulate growth and developmental programs in a multifactorial ma
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Ahmad, Hafiz Muhammad, Xiukang Wang, Munazza Ijaz, et al. "Molecular Aspects of MicroRNAs and Phytohormonal Signaling in Response to Drought Stress: A Review." Current Issues in Molecular Biology 44, no. 8 (2022): 3695–710. http://dx.doi.org/10.3390/cimb44080253.

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Phytohormones play an essential role in plant growth and development in response to environmental stresses. However, plant hormones require a complex signaling network combined with other signaling pathways to perform their proper functions. Thus, multiple phytohormonal signaling pathways are a prerequisite for understanding plant defense mechanism against stressful conditions. MicroRNAs (miRNAs) are master regulators of eukaryotic gene expression and are also influenced by a wide range of plant development events by suppressing their target genes. In recent decades, the mechanisms of phytohor
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Kang, Yi, Chengzhi Li, and Xiaozhang Yu. "Regulatory Mechanisms of Phytohormones in Thiocyanate-Exposed Rice Plants: Integrating Multi-Omics Profiling with Mathematical Modeling." Life 15, no. 3 (2025): 486. https://doi.org/10.3390/life15030486.

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Plants experience various abiotic stresses, among which pollutant stress is one of the most damaging, threatening plant productivity and survival. Thiocyanate (SCN−), a recalcitrant byproduct of industrial processes, poses escalating threats to agroecosystems by disrupting plant hormonal homeostasis, which is critical for stress adaptation. Here, we dissect the regulatory interplay of phytohormones in rice (Oryza sativa L.) under SCN− stress (4.80–124.0 mg SCN/L) through integrated transcriptomic and metabolomic profiling. Quantitative hormonal assays revealed dose- and tissue-specific perturb
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Orozco-Mosqueda, Ma del Carmen, Gustavo Santoyo, and Bernard R. Glick. "Recent Advances in the Bacterial Phytohormone Modulation of Plant Growth." Plants 12, no. 3 (2023): 606. http://dx.doi.org/10.3390/plants12030606.

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Phytohormones are regulators of plant growth and development, which under different types of stress can play a fundamental role in a plant’s adaptation and survival. Some of these phytohormones such as cytokinin, gibberellin, salicylic acid, auxin, and ethylene are also produced by plant growth-promoting bacteria (PGPB). In addition, numerous volatile organic compounds are released by PGPB and, like bacterial phytohormones, modulate plant physiology and genetics. In the present work we review the basic functions of these bacterial phytohormones during their interaction with different plant spe
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Kurniawati, Dewi, HRA Mulyani, and Rasuane Noor. "PENAMBAHAN LARUTAN BAWANG MERAH (Allium cepa L.) DAN AIR KELAPA (Cocos nucifera L.) SEBAGAI FITOHORMON ALAMI PADA PERTUMBUHAN TANAMAN TEBU (Sacchanum officinarum L.) SEBAGAI SUMBER BELAJAR BIOLOGI." BIOEDUKASI (Jurnal Pendidikan Biologi) 11, no. 2 (2020): 160. http://dx.doi.org/10.24127/bioedukasi.v11i2.3425.

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This study aims to 1) to see the effect of natural phytohormones in onions and coconut water on the growth of sugarcane, 2) To see the effect of giving natural phytohormones to sugarcane plants which produce the best growth, 3) To see the results of research on the growth of sugarcane can be used biology learning resources. This type of research is an experimental study using a completely randomized design (CRD). This study consisted of 4 treatments, namely, the first treatment was giving sand and red soil, the second treatment was giving manure and 15% concentration of onion solution phytohor
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Wang, Longfei, Yini Yan, Weiping Lu, and Dalei Lu. "Application of Exogenous Phytohormones at Silking Stage Improve Grain Quality under Post-Silking Drought Stress in Waxy Maize." Plants 10, no. 1 (2020): 48. http://dx.doi.org/10.3390/plants10010048.

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The application of exogenous plant growth regulator can improve plant resistance to drought stress. The effects of application of exogenous cytokinin (CTK), brassinolide (BR), or gibberellic acid (GA) at the silking time on the grain quality of two waxy maize hybrids under drought stress at grain formation stage were studied. Grain weight of both hybrids was unaffected by exogenous phytohormones under control conditions but increased under drought conditions with the application of BR. The grain starch content in response to drought varied with hybrid and phytohormone. Starch granule size and
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N.V., Skripchenko, Musatenko L.I., Moroz P.A., and Vasjuk V.A. "Functional relation of Actinidia species phytohormonal status with regeneration ability and sex of plants." Plant Introduction 2 (June 1, 1999): 96–100. https://doi.org/10.5281/zenodo.3366272.

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Endogenous content of phytohormones has been investigated in one-year shoots of different actinidia species, which were introduced in Ukraine. Relationship between phytohormon status of plants and their ability to rooting was established. One of the main factors, which takes influence on plant regeneration ability for reproduction by green stem cuttings is a relation between endogenous auxins, cytokinins and abscisic-acid in actinidia shoots. Actinidia female plants have greater ratio of phytohormonal balance than male ones. This testifies to functional relation between sex and a ratio of endo
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Wojciechowska, Natalia, Emilia Wilmowicz, Katarzyna Marzec-Schmidt, Agnieszka Ludwików, and Agnieszka Bagniewska-Zadworna. "Abscisic Acid and Jasmonate Metabolisms Are Jointly Regulated During Senescence in Roots and Leaves of Populus trichocarpa." International Journal of Molecular Sciences 21, no. 6 (2020): 2042. http://dx.doi.org/10.3390/ijms21062042.

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Plant senescence is a highly regulated process that allows nutrients to be mobilized from dying tissues to other organs. Despite that senescence has been extensively studied in leaves, the senescence of ephemeral organs located underground is still poorly understood, especially in the context of phytohormone engagement. The present study focused on filling this knowledge gap by examining the roles of abscisic acid (ABA) and jasmonate in the regulation of senescence of fine, absorptive roots and leaves of Populus trichocarpa. Immunohistochemical (IHC), chromatographic, and molecular methods wer
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Bajguz, Andrzej, and Alicja Piotrowska-Niczyporuk. "Biosynthetic Pathways of Hormones in Plants." Metabolites 13, no. 8 (2023): 884. http://dx.doi.org/10.3390/metabo13080884.

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Phytohormones exhibit a wide range of chemical structures, though they primarily originate from three key metabolic precursors: amino acids, isoprenoids, and lipids. Specific amino acids, such as tryptophan, methionine, phenylalanine, and arginine, contribute to the production of various phytohormones, including auxins, melatonin, ethylene, salicylic acid, and polyamines. Isoprenoids are the foundation of five phytohormone categories: cytokinins, brassinosteroids, gibberellins, abscisic acid, and strigolactones. Furthermore, lipids, i.e., α-linolenic acid, function as a precursor for jasmonic
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Dissertations / Theses on the topic "Phytohormones"

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Fracchia, Félix. "Les phytohormones, des régulateurs clefs du microbiote du peuplier ?" Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0217.

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Les écosystèmes forestiers sont des environnements dynamiques aussi bien à l'échelle macroscopique que microscopique. Les arbres abritent un vaste cortège de microorganismes, appelé microbiote, majoritairement constitué de bactéries et de champignons. Ces communautés microbiennes colonisent les différents tissus des arbres et participent à diverses interactions, aussi bien défavorables (e.g. pathogènes), que bénéfiques. En effet, certains microorganismes (e.g. Plant Growth Promoting Bacteria : PGPR ; champignons mycorhiziens), améliorent la croissance et le développement de leur hôte via le tr
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Block, Anna K. "Role of arabidopsis and tomato phytohormones in the response to bacterial pathogens." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0007381.

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Reynolds, Gary John. "Novel approaches to understanding gibberellin perception." Thesis, University of Bristol, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294907.

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Fourestey, Marie-Sophie. "Production d'anthocyanes par des cultures cellulaires de vigne in vitro : influence des phytohormones." Bordeaux 2, 1996. http://www.theses.fr/1996BOR2P087.

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Leblond-Castaing, Julie. "Caractérisation de l’interaction des protéines IMA/MIF2 et CSN5 au niveau moléculaire et physiologique." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14466/document.

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Les plantes ont la capacité à former de nouveaux organes grâce à une croissance continue assurée par une réserve de cellules souches au sein de structures spécifiques, les méristèmes. Les méristèmes floraux diffèrent des méristèmes végétatifs par leur caractère déterminé aboutissant à la production des fleurs. Le gène IMA (INHIBITOR OF MERISTEM ACTIVITY) code une protéine contenant un motif «doigt à zinc» (MIF) régulant les processus développementaux de la fleur et des ovules chez la tomate. En effet, IMA inhibe la prolifération cellulaire au cours de la terminaison florale en agissant sur l’e
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Dave, Anuja. "Development and application of analytical methods to study phytohormones involved in Arabidopsis seed germination." Thesis, University of York, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533536.

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Orendo-Smith, Richard. "Sanjeevak as a source of nutrients and phytohormones for production and propagation of plants." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19934.

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Thesis (PhD)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: The use of cowdung as an organic fertilizer in Asian and African agriculture is an ancient practice. This explains its renewed interest, partly due to the financial inability of most farmers to purchase agrochemicals but also the ever increasing need to adopt greener technologies that do not adversely affect soil health, water quality, biodiversity and promote sustained or even increased food production. In this context, many innovative farmers have developed their own novel technologies based on the use of local resources
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Dusart, Nicolas. "Réponses du peuplier soumis à une combinaison de contraintes, ozone et sécheresse : dynamique de la conductance stomatique et des capacités antioxydantes foliaires." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0070/document.

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Les modèles climatiques indiquent qu’il est très probable que les végétaux soient de plus en plus exposés à deux facteurs de stress environnementaux : l’ozone troposphérique (O3) et le déficit hydrique du sol, tous deux pouvant provoquer un stress oxydant pour le végétal. Dans des conditions naturelles, ces deux facteurs peuvent être concomitants ou se succéder. L’impact de l’O3 et de la sécheresse nécessite donc une attention particulière. Afin de déterminer les réponses de défense mises en place par les arbres, deux génotypes de Populus nigra x deltoides (Carpaccio et Robusta) ont été exposé
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McCoy, Mark Christopher. "The effects of phytohormones on growth and artemisinin production in hairy root cultures of artemisia annua l." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0529103-162012/.

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Frank, Manuel [Verfasser]. "The involvement of phytohormones, tissue and age in the response to photoperiod stress in Arabidopsis thaliana / Manuel Frank." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1199343749/34.

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Books on the topic "Phytohormones"

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Raju, Dhandapani, R. Ambika Rajendran, Ayyagari Ramlal, and Virendra Pal Singh. Phytohormones in Abiotic Stress. CRC Press, 2024. http://dx.doi.org/10.1201/9781003335788.

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Macháčková, Ivana, and Georgy A. Romanov, eds. Phytohormones in Plant Biotechnology and Agriculture. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-2664-1.

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Michael, Bennett. Wild yam: Nature's source of phytohormones. Optimal Healthspan Publications, 1997.

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NATO-Russia Workshop (2002 Moscow, Russia). Phytohormones in plant biotechnology and agriculture. Kluwer Academic, 2003.

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Frankenberger, W. T. Phytohormones in soils: Microbial production and function. Marcel Dekker, 1995.

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Khan, Nafees A., Rahat Nazar, Noushina Iqbal, and Naser A. Anjum, eds. Phytohormones and Abiotic Stress Tolerance in Plants. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25829-9.

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Frankenberger, W. T. Phytohormones in soils: Microbial production and function. M. Dekker, 1995.

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Khan, Nafees A. Phytohormones and Abiotic Stress Tolerance in Plants. Springer Berlin Heidelberg, 2012.

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Kefeli, Valentine I., and Maria V. Kalevitch. Natural Growth Inhibitors and Phytohormones in Plants and Environment. Edited by Bruno Borsari. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0315-4.

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Tran, Lam-Son Phan, and Sikander Pal, eds. Phytohormones: A Window to Metabolism, Signaling and Biotechnological Applications. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-0491-4.

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Book chapters on the topic "Phytohormones"

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Ramlal, Ayyagari, R. Ambika Rajendran, Dhandapani Raju, and Virendra Pal Singh. "Phytohormones." In Phytohormones in Abiotic Stress. CRC Press, 2024. http://dx.doi.org/10.1201/9781003335788-26.

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Dhal, Pallavi B., Sadhna, Rajkumari Sanayaima Devi, Rahul Bhadouria, and Sachchidanand Tripathi. "Phytohormones." In Ecophysiology of Tropical Plants. CRC Press, 2023. http://dx.doi.org/10.1201/9781003335054-28.

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Ahmad, Maqshoof, Azeem Khalid, and Zahir Ahmad Zahir. "Phytohormones." In Biological Approaches to Regenerative Soil Systems, 2nd ed. CRC Press, 2023. http://dx.doi.org/10.1201/9781003093718-22.

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Saha, Priyanka, Bishal Debnath, Neha Sharma, et al. "Phytohormones." In Plant Stress Tolerance. CRC Press, 2025. https://doi.org/10.1201/9781003543237-6.

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Mendoza-Meneses, C. J., Betsie Martínez-Cano, María Isabel Nieto-Ramírez, Amanda Kim Rico-Chávez, Karen Esquivel-Escalante, and Ana A. Feregrino-Pérez. "Fungal Phytohormones." In Plant Growth Regulators to Manage Biotic and Abiotic Stress in Agroecosystems. CRC Press, 2024. http://dx.doi.org/10.1201/9781003389507-3.

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Klyachko, N. L., and M. A. Erokhina. "Phytohormones and Cytoskeleton." In Phytohormones in Plant Biotechnology and Agriculture. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-2664-1_23.

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Ramlal, Ayyagari, R. Ambika Rajendran, Dhandapani Raju, and Virendra Pal Singh. "Introduction to Phytohormones." In Phytohormones in Abiotic Stress. CRC Press, 2024. http://dx.doi.org/10.1201/9781003335788-2.

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Kaushik, Shruti, Alok Ranjan, Anmol Sidhu, et al. "Phytohormones and Metalloids." In Metalloids in Biology. CRC Press, 2025. https://doi.org/10.1201/9781032673592-13.

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Neumann, Karl-Hermann, Ashwani Kumar, and Jafargholi Imani. "Phytohormones and Growth Regulators." In Plant Cell and Tissue Culture – A Tool in Biotechnology. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49098-0_11.

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Parthier, B. "Phytohormones and Gene Expression." In Proceedings in Life Sciences. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-71018-6_20.

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Conference papers on the topic "Phytohormones"

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Vasylinych, Tamara, Olena Khodanitska, Oksana Shevchuk, Olesya Tkachuk, and Oksana Valchuk. "Environmentally Safe Increase in Productivity of Amaranth under the Action of Growth Stimulants." In 8th International Congress "Environment Protection. Energy Saving. Sustainable Environmental Management". Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-zji9xt.

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Hormonal regulation of plant physiological processes, including use of phytohormone-based drugs and modifiers of their activity, offers a sustainable approach to enhancing plant productivity. The aim of our work was to reveal the features of amaranth ontogenesis under the influence of auxin growth stimulants. We assessed the effects of indoleacetic, indolylbutyric, and naphthylacetic acids on germination processes, development, and productivity of amaranth plants. It was established that the use of growth stimulants increased the germination energy by 7-17%, seed germination of amaranth by 5-9
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LELIŪNIENĖ, Jolanta, Ligita BALEŽENTIENĖ, and Evaldas KLIMAS. "FESTULOLIUM METABOLITES ACCUMULATION RESPONSE TO PHOTOPERIOD OF FLOWERING TERMOINDUCTION." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.003.

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Most of plant development, physiological and metabolic processes are regulated by not only soluble sugars such as glucose and sucrose, but also by other signal molecules, such as phytohormones. The investigation of flowering induction, considering the influence of vernalisation duration and photoperiod on morphogenesis stages and accumulation metabolites in the new Festulolium cultivars ’Vėtra’ and ’Punia’ was carried out at the phytotron complex of the Plant Physiology Laboratory, Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry in 2011-2012. The data reveale
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Mirskaya, Galina, Yu Khomyakov, N. Rushina, V. Vertebniy, and V. Pishchik. "Effect of phytohormone-producing Bacillus sp.v2026 on development and productivity of early-maturing wheat (Triticum aestivum l.)." In Scientific International Symposium “Advanced Biotechnologies - Achievements and Prospects” (VIth Edition). Institute of Genetics, Physiology and Plant Protection, 2022. http://dx.doi.org/10.53040/abap6.2022.65.

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Purpose. For wheat plants, early maturity is one of the important adaptive features. Increa-sing the yield of early-maturing wheat cultivars and lines is an urgent problem for agriculture. A possible way of increasing the productivity of grain crops in sustainable agriculture is the use of biological preparations based on PGPB. PGPBs stimulate plant growth and development through various mechanisms, including the production of phytohormones. The paper presents a study of the effect of phytohormone-producing Bacillus sp. V2026 bacteria on the hormonal status, productivity and the development of
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Kravchenko, T. P. "NAMES OF PHYTOHORMONES IN HORTICULTURAL TERMINOLOGY." In FOOD SECURITY OF UKRAINE IN THE CONDITIONS OF POST-WAR RECOVERY: GLOBAL AND NATIONAL DIMENSIONS. MYKOLAIV NATIONAL AGRARIAN UNIVERSITY, 2025. https://doi.org/10.31521/978-617-7149-86-5-117.

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Karsunkina N.P., N. P., E. V. Eremina E.V., and M. Yu Cherednichenko M.Yu. "Growth regulators in agriculture and biotechnology." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-56.

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The review is devoted to the history of the study of phytohormones and growth regulators. The features of the main classes of phytohormones and the prospects for their use in plant tissue and cell culture are also considered.
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Bukhamsin, Abdullah, Ikram Blilou, Khaled Nabil Salama, and Jürgen Kosel. "Simultaneous and Continuous Monitoring of Plant Bioimpedance and Phytohormones." In 2023 IEEE BioSensors Conference (BioSensors). IEEE, 2023. http://dx.doi.org/10.1109/biosensors58001.2023.10280805.

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Alatortseva, T. A. "Petchoa in vitro culture." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.015.

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Samsonova, E. A., I. M. Ibrahim, Yu P. Fedonenko, and S. A. Konnova. "In vitro evaluation of some halophilic bacterial isolates as biofertilizers." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.215.

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Nazarova, Ya I., A. V. Bakulina, I. G. Shirokikh, and A. L. Blinova. "Studying the properties of rhizosphere strain Streptomyces sp. 8Al3 for phytopathogens biocontrol." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.180.

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The species identification of the rhizosphere strain Streptomyces sp. 8Al3 was done, studied its antagonistic properties, the ability to produce phytohormones, and optimized the cultivation conditions.
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Bakaeva, M. D., S. P. Chetverikov, D. V. Chetverikova, and A. A. Kendzhieva. "Promising microorganisms for coping herbicide stress in plants." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.032.

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Herbicide-resistant strains of Pseudomonas and Achromobacter have been isolated. Theу are diazotrophic, can mobilize phosphorus from insoluble compounds and synthesize phytohormones in the presence of herbicides.
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Reports on the topic "Phytohormones"

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Bray, Elizabeth, Zvi Lerner, and Alexander Poljakoff-Mayber. The Role of Phytohormones in the Response of Plants to Salinity Stress. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7613007.bard.

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Salinity is an increasing problem in many irrigated areas of crop production and is a significant factor in reducing crop productivity. Developmental, physiological, and molecular responses to salinity were studied in order to improve our understanding of these responses. Improvements in our understanding of plant responses to salinity are necessary in order to develop crops with improved salt tolerance. Previously, in Israel, it was shown that Sorghum biccolor can adapt to an otherwise lethal concentration of NaCl. These experiments were refined and it was shown that there is a specific windo
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Lindow, Steven, Yedidya Gafni, Shulamit Manulis, and Isaac Barash. Role and In situ Regulation of Growth Regulators Produced in Plant-Microbe Interactions by Erwinia herbicola. United States Department of Agriculture, 1992. http://dx.doi.org/10.32747/1992.7561059.bard.

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The main objective of this work was to gain a better understanding of how some strains of Erwinia herbicola have evolved into serious plant pathogens while also commonly existing as epiphytes on the surface of healthy plants. The focus of our studies was to determine the nature of, and regulation, of virulence factors, including the phytohormones IAA and cytokinins, which are encoded on a large plasmid (pPATH) found in gall-forming strains of this species. In addition, the in situ regulation and contribution to epiphytic fitness of a second, chromosomal, IAA biosynthetic locus (ipdC) was deter
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Ditta, G. Identification and manipulation of Rhizobium phytohormone genes. Office of Scientific and Technical Information (OSTI), 1988. http://dx.doi.org/10.2172/7045705.

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Salts, Yechiam, Wilhelm Gruissem, Rivka Barg, and Sheila McCormick. An Attempt to Induce Parthenocarpy in Tomato via Phytohormone Overproduction, within Reproductive Organs. United States Department of Agriculture, 1996. http://dx.doi.org/10.32747/1996.7603842.bard.

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Fromm, Hillel, and Joe Poovaiah. Calcium- and Calmodulin-Mediated Regulation of Plant Responses to Stress. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568096.bard.

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We have taken a molecular approach to clone cellular targets of calcium/calmodulin (Ca2+/CaM). A 35S-labeled recombinant CaM was used as a probe to screen various cDNA expression libraries. One of the isolated clones from petunia codes for the enzyme glutamate decarboxylase (GAD) which catalyzes the conversion of glutamate to g-aminobutyric acid (GABA). The activity of plant GAD has been shown to be dramatically enhanced in response to cold and heat shock, anoxia, drought, mechanical manipulations and by exogenous application of the stress phytohormone ABA in wheat roots. We have purified the
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Woodson, William, Shimon Mayak, and Haim Rabinowitch. Physiological and Molecular Characterization of the Response to Ethylene during Senescence of Carnation Genotypic Variants. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7613011.bard.

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The senescence of carnation (Dianthus caryophyllus L.) flowers is associated with increased production of the phytohormone ethylene, which in turn serves to initiate and regulate the processes involved in programmed petal death. We investigated the regulation of ethylene production and petal senescence in carnation. Several carnation genotypes were identified that exhibited extended vase-life in comparison to flowers from typical commercial cultivars. The capacity of these genotypes to produce ethylene during postharvest vase-life and to respond to exogenous ethylene was investigated. Several
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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, 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 herbivor
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Locy, Robert D., Hillel Fromm, Joe H. Cherry, and Narendra K. Singh. Regulation of Arabidopsis Glutamate Decarboxylase in Response to Heat Stress: Modulation of Enzyme Activity and Gene Expression. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7575288.bard.

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Most plants accumulate the nonprotein amino acid, g-aminobutyric acid (GABA), in response to heat stress. GABA is made from glutamate in a reaction catalyzed by glutamate decarboxylase (GAD), an enzyme that has been shown by the Israeli PI to be a calmodulin (CaM) binding protein whose activity is regulated in vitro by calcium and CaM. In Arabidopsis there are at least 5 GAD genes, two isoforms of GAD, GAD1 and GAD2, are known to be expressed, both of which appear to be calmodulin-binding proteins. The role of GABA accumulation in stress tolerance remains unclear, and thus the objectives of th
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