Academic literature on the topic 'Plant growth hormones'

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Journal articles on the topic "Plant growth hormones"

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Vashi, Jal D. "Plant Hormones- Natural Growth Regulators." Journal of Experimental Agriculture International 45, no. 11 (2023): 30–38. http://dx.doi.org/10.9734/jeai/2023/v45i112232.

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Plant hormones are compounds that can regulate the overall growth and development of plants and have a great influence throughout the lifecycle of plants. Various hormones act on the plant at different points of time depending on the vegetative or reproductive state of the plant. The effects of hormones on plants are quite complex to understand and a single plant hormone can have multiple effects on the growth and development of plants. They can help to regulate the homeostasis of plants under stress from both biotic and abiotic factors. Plant hormones have a very complex mode of interaction a
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Choudhary, Mahesh, and Anop Kumari. "Understanding Plant Hormones: Mechanisms and Functions in Growth and Development." Plant Science Archives 6, no. 1 (2021): 14–16. http://dx.doi.org/10.51470/psa.2021.6.1.14.

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Plant hormones, or phytohormones, are critical regulators of plant growth, development, and responses to environmental stimuli. These bioactive compounds, though present in minute quantities, orchestrate a wide array of physiological processes, including seed germination, root and shoot development, flowering, fruit ripening, and senescence. This review provides a comprehensive overview of the key plant hormones, including auxins, gibberellins, cytokinins, abscisic acid, ethylene, brassinosteroids, jasmonates, and salicylic acid. Each hormone’s biosynthesis, signaling mechanisms, and functiona
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Ross, John J., and James B. Reid. "Evolution of growth-promoting plant hormones." Functional Plant Biology 37, no. 9 (2010): 795. http://dx.doi.org/10.1071/fp10063.

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The plant growth hormones auxin, gibberellins (GAs) and brassinosteroids (BRs) are major determinants of plant growth and development. Recently, key signalling components for these hormones have been identified in vascular plants and, at least for the GAs and BRs, biosynthetic pathways have been clarified. The genome sequencing of a range of species, including a few non-flowering plants, has allowed insight into the evolution of the hormone systems. It appears that the moss Physcomitrella patens can respond to auxin and contains key elements of the auxin signalling pathway, although there is s
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Végvári, György, and Edina Vidéki. "Plant hormones, plant growth regulators." Orvosi Hetilap 155, no. 26 (2014): 1011–18. http://dx.doi.org/10.1556/oh.2014.29939.

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Plants seem to be rather defenceless, they are unable to do motion, have no nervous system or immune system unlike animals. Besides this, plants do have hormones, though these substances are produced not in glands. In view of their complexity they lagged behind animals, however, plant organisms show large scale integration in their structure and function. In higher plants, such as in animals, the intercellular communication is fulfilled through chemical messengers. These specific compounds in plants are called phytohormones, or in a wide sense, bioregulators. Even a small quantity of these end
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Renu, Fandan1 S. K. Dhankhar1 and Rubal Kamboj2. "Effect of Plant Growth Regulators in Solanaceae family." Science World a monthly e magazine 3, no. 7 (2023): 1586–89. https://doi.org/10.5281/zenodo.8186973.

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Other than minerals and vitamins, plant growth regulators are organic chemicals which can control plant development when used in modest quantities. PGRs are utilized in a variety of forms, including liquid, powder, and paste. The word "hormone" comes from the Greek root "hormao," which meant to excite. They are referred to as phytohormones to set them apart from animal hormones. An organic substance known as a growth regulator, which can be either natural or synthetic, alters or regulates one or more particular physiological processes in a plant, though the synthesis and ac
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Saeedeh, Ghorbani. "The effect of auxin and cytokinesis hormones on some characteristics of crop plants." Chemistry Research Journal 2, no. 2 (2017): 139–45. https://doi.org/10.5281/zenodo.13956768.

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Introduction Among the most important functions of plant hormones is controlling and coordinating cell division, growth and differentiation. Plant hormones can affect different plant activities including seed dormancy and germination. Plant hormones including abscisic acid (ABA), ethylene, gibberellins, auxin (IAA), cytokinins, and brassinosteroids are biochemical substances controlling many physiological and bio-chemical processes in the plant. These interesting products are produced by plants and also by soil microbes. Auxin is a plant hormone, which plays a key role in regulating the follow
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Roja Rani, Maderametla, Umabati Sahu, Srilakshmi Ch, R. Prema, and Kapil Kumar Gupta. "Discuss How Understanding Plant Hormones Can Benefit Agriculture, Horticulture, And Plant Biotechnology." Journal of Neonatal Surgery 14, no. 32S (2025): 2879–86. https://doi.org/10.63682/jns.v14i32s.7837.

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Plant hormones: phytohormones are the key factors of plant development, physiology, and adaptive response to environmental signals. Their duty in CA appellation, expansion, senescence in addition to plant flowering, fruiting along with stress responsiveness create the biochemical anchoring of plant growth along with productivity. Riding on the complexity of plant hormone knowledge, global agriculture is also under pressure to sustainably deliver essential food supplies given the challenges of climate change as well as global population growth and a possible revolution is emerging in agricultur
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Iqbal, Jamshaid, Muhammad A. Ahmad, Muhammad R. Iftikhar, et al. "Application of Plant Growth Hormones in Agricultural Biotechnology." Data Plus 2, no. 1 (2024): 29–34. https://doi.org/10.62887/dataplus.002.01.0017.

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Also known as phytohormones, plant growth hormones are essential regulators of stress responses and plant development, playing a pivotal role in agricultural biotechnology today. The main groups of plant hormones—auxins, gibberellins, cytokinins, abscisic acid, and ethylene—as well as how they might be used to increase crop yield, are covered in this overview. Gibberellins improve fruit quality and seed germination, whereas auxins aid in root initiation and tissue culture applications. Cytokinins stimulate cell proliferation and postpone senescence, whereas ethylene and abscisic acid aid in pl
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Austin, Publishing Group. "Emerging Trends on Crosstalk of Jasmonates with Other Phytohormones under Plant Stress." Annals of Agricultural & Crop Sciences 8, no. 1 (2023): 1127. https://doi.org/10.26420/annagriccropsci.2023.1127.

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Abstract Plant hormones play crucial and basic roles in plant growth, developmental processes, and also in plant response to abiotic and biotic constraints. On the first time, plant hormones may allocate limited resources to the most serious stresses, on the second time, the crosstalk among multiple plant hormone signaling directs the balance between the plant growth and the plant defense. Various studies and investigations have reported the mechanism of crosstalk between Jasmonic Acid (JA) and other plant hormones in plant growth and stress responses. Based on these investigations, this chapt
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Jang, Geupil, Youngdae Yoon, and Yang Do Choi. "Crosstalk with Jasmonic Acid Integrates Multiple Responses in Plant Development." International Journal of Molecular Sciences 21, no. 1 (2020): 305. http://dx.doi.org/10.3390/ijms21010305.

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To date, extensive studies have identified many classes of hormones in plants and revealed the specific, nonredundant signaling pathways for each hormone. However, plant hormone functions largely overlap in many aspects of plant development and environmental responses, suggesting that studying the crosstalk among plant hormones is key to understanding hormonal responses in plants. The phytohormone jasmonic acid (JA) is deeply involved in the regulation of plant responses to biotic and abiotic stresses. In addition, a growing number of studies suggest that JA plays an essential role in the modu
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Dissertations / Theses on the topic "Plant growth hormones"

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Baynham, Mark Kevin. "Gibberellin plant growth hormones." Thesis, University of Sussex, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328329.

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Weir, A. J. "#alpha#-ketogutarate dependent gibberellin hydroxylases and plant growth regultion." Thesis, University of Bristol, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233760.

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Zhang, Xunzhong. "Influence of Plant Growth Regulators on Turfgrass Growth, Antioxidant Status, and Drought Tolerance." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30739.

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A series of studies were conducted to examine the antioxidant status, drought and disease tolerance, and growth response to foliar application of soluble seaweed (Ascophyllum nodosum) extracts (SE) and humic acid (HA; 25% active HA or 2.9% active HA) in tall fescue (Festuca arundinacea Schreb), Kentucky bluegrass (Poa pratensis L.) and creeping bentgrass (Agrostis palusttis Huds.) grown under low (-0.5 MPa) and high (-0.03 MPa) soil moisture environments. Foliar application of humic acid (2.9 % active HA) at 23.7 and 47.4 l/ha improved leaf water status, shoot and root development in tall fes
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Xing, Ti. "Hormone binding in plants." Thesis, De Montfort University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280511.

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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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Ververidis, Philippos. "Characterisation and partial purification of the enzyme responsible for ethylene synthesis from 1-aminocyclopropane-1carboxylic acid in plant tissues." Thesis, University of Reading, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303175.

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Feys, Bart Julienne Frans. "Towards positional cloning of COI1, an arabidopsis gene controlling the response to coronatine and methyl jasmonate." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317974.

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Yuan, Kun Wysocka-Diller Joanna Singh Narendra K. "Functional and genetic analysis of plant transcription factors involved in the plant growth under various environmental conditions." Auburn, Ala, 2008. http://repo.lib.auburn.edu/2007%20Fall%20Dissertations/Yuan_Kun_37.pdf.

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Guinn, Gene, and Donald L. Brummett. "Irrigation and Nitrogen Effects on Plant Hormones, Boll Retention, and Growth of Fruiting Branches." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/204460.

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An experiment was conducted in Phoenix in 1986 to determine effects of water and N deficits on ABA and IAA concentrations in young bolls and their abscission zones in relation to boll retention, and to determine the effects of N on growth of fruiting branches through the season. Water deficit decreased boll retention, decreased the concentration of free IAA in bolls and their abscission zones, and increased ABA in bolls and abscission zones. But, the concentration of ester IAA increased with water deficit (in contrast to free IAA). Because ester IAA resists degradation during stress, it may fa
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Wheelhouse, Nicholas Mark. "The effect of amino acids on growth hormone action in ovine hepatocytes." Thesis, University of Aberdeen, 1999. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=185765.

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Many of the anabolic effects of growth hormone (GH) are indirect, occurring through GH-stimulated production of insulin-like growth factor-I (IGF-I) by the liver. As well as being GH regulated, plasma IGF-I concentrations have been demonstrated to be dependent upon protein nutrition, with low protein diets being associated with reduced plasma IGF-I concentrations. This effect cannot be reversed by GH, suggesting that liver sensitivity to GH is impaired. To investigate the mechanisms through which protein supply affects GH sensitivity, primary cultures of ovine hepatocytes were grown in defined
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Books on the topic "Plant growth hormones"

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Gerald, Litwack, ed. Plant hormones. Elsevier, 2005.

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Schaller, Andreas, ed. Plant Peptide Hormones and Growth Factors. Springer US, 2024. http://dx.doi.org/10.1007/978-1-0716-3511-7.

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J, Hooykaas Paul J., Hall M. A, and Libbenga K. R, eds. Biochemistry and molecular biology of plant hormones. Elsevier, 1999.

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Davies, Peter J., ed. Plant Hormones and their Role in Plant Growth and Development. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3585-3.

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1940-, Davies Peter J., ed. Plant hormones and their role in plant growth and development. M. Nijhoff, 1987.

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S, Purohit S., ed. Hormonal regulation of plant growth and development. Nijhoff, 1985.

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Roberts, Lorin Watson. Vascular differentiation and plant growth regulators. Springer-Verlag, 1988.

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International Conference on Plant Growth Substances (12th 1985 Heidelberg, Germany). Plant growth substances 1985: Proceedings of the 12th International Conference on Plant Growth Substances, held at Heidelberg, August 26-31, 1985. Springer-Verlag, 1986.

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1940-, Davies Peter J., ed. Plant hormones: Biosynthesis, signal transduction, action! 3rd ed. Springer, 2004.

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F, Verzilov V., ed. Stimuli͡a︡tory i ingibitory rostovykh prot͡s︡essov u rasteniĭ. "Nauka", 1988.

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Book chapters on the topic "Plant growth hormones"

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Galston, Arthur W., and Ravindar Kaur-Sawhney. "Polyamines as Endogenous Growth Regulators." In Plant Hormones. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0473-9_8.

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Bopp, M. "Plant Hormones in Lower Plants." In Plant Growth Substances 1988. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-74545-4_1.

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Kaufman, Peter B., Liu-Lai Wu, Thomas G. Brock, and Donghern Kim. "Hormones and the Orientation of Growth." In Plant Hormones. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0473-9_26.

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Reid, Michael S. "Ethylene in Plant Growth, Development, and Senescence." In Plant Hormones. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0473-9_23.

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Nehring, Ramlah B., and Joseph R. Ecker. "Ethylene Responses in Seedling Growth and Development." In Plant Hormones. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-1-4020-2686-7_17.

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Ryan, Clarence A., and Gregory Pearce. "Peptide Hormones for Defense, Growth, Development and Reproduction." In Plant Hormones. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-1-4020-2686-7_30.

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Sun, Tai-ping. "Gibberellin Signal Transduction in Stem Elongation & Leaf Growth." In Plant Hormones. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-1-4020-2686-7_15.

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Gianfagna, Thomas. "Natural and Synthetic Growth Regulators and Their Use in Horticultural and Agronomic Crops." In Plant Hormones. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0473-9_34.

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Arshad, Muhammad, and W. T. Frankenberger. "Microbial production of plant hormones." In The Rhizosphere and Plant Growth. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3336-4_71.

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Roberts, Jeremy A., and Richard Hooley. "Hormones and the Concept of Sensitivity — A Rational Approach." In Plant Growth Regulators. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4615-7592-4_4.

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Conference papers on the topic "Plant growth hormones"

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Ionescu, Alexandra-Ioana, and Constantin Butoi. "STUDY REGARDING THE BEST SWEETENERS USED IN GREEN-TEA BASED SUPPLEMENTS." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s25.30.

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Green tea-based food supplements are very attractive to a large group of consumers and make an important contribution to maintaining good health. In order to preserve the nutritional value of supplements of this type, pesticide and plant growth hormones-free green tea is used as raw material. Choosing the best sweeteners in this case is an important part of scientific research, especially for consumers with certain digestive conditions. The aim of this paper is to successfully identify the best way to sweeten green tea by testing and selecting the best sweetener. In this mode results an interm
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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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Maduni, Uresha, Chamathka Bandara, and Ruvini Mathangadeera. "Optimization of a Surface Sterilization Protocol and Determination of Hormonal Combination for In vitro Propagation of the Aquatic Ornamental Plant Echinodorus palifolius." In SLIIT INTERNATIONAL CONFERENCE ON ADVANCEMENTS IN SCIENCES AND HUMANITIES. Faculty of Humanities & Sciences, SLIIT, 2024. https://doi.org/10.54389/ocha2360.

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The in vitro propagation of Echinodorus palifolius, an aquatic plant highly valued in aquascaping, is crucial for meeting its growing demand in the global market. This study aimed to optimize the surface sterilization protocol and hormonal combination to establish in vitro propagation of Echinodorus palifolius under the specific conditions of Sri Lanka. Various sterilants, including Clorox, ethanol, and hydrogen peroxide, and different time durations were tested for leaves and roots to identify the most effective sterilization method. The study also evaluated the impact of different hormone tr
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Bakaeva, M. D., Li B. Vysotskaya, T. N. Arkhipova, et al. "The influence of plant growth stimulating bacteria on phytoremediation of oil-contaminated soils." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.033.

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Yarden, Ronit I., and Claire B. Pollock. "Abstract 5575: Strigolactones: a novel class of plant hormones inhibit cancer cell and cancer stem-like cell growth and survival." In Proceedings: AACR 104th Annual Meeting 2013; Apr 6-10, 2013; Washington, DC. American Association for Cancer Research, 2013. http://dx.doi.org/10.1158/1538-7445.am2013-5575.

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Xuan, DoThi, Pham Thi Hai Nghi, Nguyen Thi Pha, and Le Thi Hoang Yen. "EFFICIENCY OF THE COMBINATION OF ARBUSSCULAR MYCORRHIZAL FUNGAL POPULATIONS AND PLANT GROWTH HORMONES ON GROWTH, YIELD AND QUALITY OF ASPARAGUS (Asparagus officinalis L.) UNDER THE GREENHOUSE CONDITION." In THE 6TH VIETNAM NATIONAL MYCOLOGY CONFERENCE - 2024. Nhà xuất bản Khoa học tự nhiên và Công nghệ, 2024. https://doi.org/10.15625/vap.2025.0078.

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Mena, Eva, Alicia Gadea, Alfonso Monreal-Bernal, Sergio López‐García, Victoriano Garre, and Andrés Jesús Lara-Guillén. "Biofungus: fungus MBBR pilot plant on Murcia Este WWTP." In 2nd WDSA/CCWI Joint Conference. Editorial Universitat Politècnica de València, 2022. http://dx.doi.org/10.4995/wdsa-ccwi2022.2022.14875.

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Concerns about energy efficiency and contaminants of emerging concern (CECs) in wastewater treatment plants (WWTP) lead development of new and alternative processes. Conventional activated sludge systems have a high energy consumption and footprint. Alternative processes are nowadays implemented to reduce them. In this study, we present the results of Biofungus project. Influent wastewater is treated under real conditions and continuous operation in a two-step Moving Bed Biofilm Reactor (MBBR) pilot plant based on Mucor fungus. Several strains and spontaneous mutants of the Mucor fungus were i
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Toneti, Miguel Trindade, André Gianfroni Lucinio, Isabella Pedroso de Oliveira, Willian de Araújo Lima, and Emmanuel Zullo Godinho. "Practical class experience report: Use of phytohormone in mint germination." In VI Seven International Multidisciplinary Congress. Seven Congress, 2024. http://dx.doi.org/10.56238/sevenvimulti2024-085.

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Mint is an aromatic herb widely explored and used in many regions due to its high demand in the food, beverage, cosmetics and hygiene products industries based on the plant. Consumed in natura or in essence form, it is used to relieve digestive problems, headaches, nausea and cold symptoms. Phytohormones of oilseeds are essential compounds (hormones) that regulate the growth and development of plants. The objective of this experiment was to evaluate the germination rate of mint seeds applying phytohormones produced from white beans. 400 mL of distilled water was placed in a blender with 100 g
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Guedes, Marcos Vinicius Paladin, Júlia Bibiani Fidêncio, Letícia Rampo, Willian de Araújo Lima, and Emmanuel Zullo Godinho. "Practical class experience report: Use of soybean phytohormone in herb germination – Basil." In VI Seven International Multidisciplinary Congress. Seven Congress, 2024. http://dx.doi.org/10.56238/sevenvimulti2024-086.

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Basil is a medicinal herb that has been cultivated since ancient times. It also has medicinal, antibacterial, antioxidant, and antispasmodic properties. It is good for the digestive system, insect bites, and bad breath. It is also very useful in the food industry. Oilseed phytohormones are essential compounds (hormones) that regulate plant growth and development. The main phytohormones include auxins, gibberellins, cytokinins, abscisic acid, and ethylene, each of which plays a specific role. Therefore, the objective of this study was to evaluate the germination of basil using different doses o
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Arkhipova, T. N., and E. V. Martynenko. "The effect of hormone producing bacteria on plant growth and stress tolerance." 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/10.26907/978-5-00130-204-9-2019-48.

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Reports on the topic "Plant growth hormones"

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Savaldi-Goldstein, Sigal, and Todd C. Mockler. Precise Mapping of Growth Hormone Effects by Cell-Specific Gene Activation Response. United States Department of Agriculture, 2012. http://dx.doi.org/10.32747/2012.7699849.bard.

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Plant yield largely depends on a complex interplay and feedback mechanisms of distinct hormonal pathways. Over the past decade great progress has been made in elucidating the global molecular mechanisms by which each hormone is produced and perceived. However, our knowledge of how interactions between hormonal pathways are spatially and temporally regulated remains rudimentary. For example, we have demonstrated that although the BR receptor BRI1 is widely expressed, the perception of BRs in epidermal cells is sufficient to control whole-organ growth. Supported by additional recent works, it is
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Savaldi-Goldstein, Sigal, and Siobhan M. Brady. Mechanisms underlying root system architecture adaptation to low phosphate environment. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7600024.bard.

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In order to advance our understanding towards potential biotechnology improvement of plant performance, we studied root responses to limited P in two different plants, Arabidopsis and tomato. Arabidopsis is among the most studied model plants that allows rapid application of molecular and developmental experiments while tomato is an important crop, with application in agriculture. Using Arabidopsis we found that steroid hormones modulate the extent of root elongation in response to limited P, by controlling the accumulation of iron in the root. We also found that the availability of P and iron
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Crowley, David E., Dror Minz, and Yitzhak Hadar. Shaping Plant Beneficial Rhizosphere Communities. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7594387.bard.

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PGPR bacteria include taxonomically diverse bacterial species that function for improving plant mineral nutrition, stress tolerance, and disease suppression. A number of PGPR are being developed and commercialized as soil and seed inoculants, but to date, their interactions with resident bacterial populations are still poorly understood, and-almost nothing is known about the effects of soil management practices on their population size and activities. To this end, the original objectives of this research project were: 1) To examine microbial community interactions with plant-growth-promoting r
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Ecker, Joseph Robert. Epigenetic Regulation of Hormone-dependent Plant Growth Processes. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1332760.

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Chamovitz, Daniel, and Albrecht Von Arnim. Translational regulation and light signal transduction in plants: the link between eIF3 and the COP9 signalosome. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7696515.bard.

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The COP9 signalosome (CSN) is an eight-subunit protein complex that is highly conserved among eukaryotes. Genetic analysis of the signalosome in the plant model species Arabidopsis thaliana has shown that the signalosome is a repressor of light dependent seedling development as mutant Arabidopsis seedlings that lack this complex develop in complete darkness as if exposed to light. These mutant plants die following the seedling stage, even when exposed to light, indicating that the COP9 signalosome also has a central role in the regulation of normal photomorphogenic development. The biochemical
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Yang, Zhenbiao. ROP GTPase Signaling in The Hormonal Regulation of Plant Growth. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1080178.

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Philosoph-Hadas, Sonia, Peter Kaufman, Shimon Meir, and Abraham Halevy. Signal Transduction Pathway of Hormonal Action in Control and Regulation of the Gravitropic Response of Cut Flowering Stems during Storage and Transport. United States Department of Agriculture, 1999. http://dx.doi.org/10.32747/1999.7695838.bard.

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Original objectives: The basic goal of the present project was to increase our understanding of the cellular mechanisms operating during the gravitropic response of cut flowers, for solving their bending problem without affecting flower quality. Thus, several elements operating at the 3 levels o the gravity-induced signal transduction pathway, were proposed to be examined in snapdragon stems according to the following research goals: 1) Signaling: characterize the signal transduction pathway leading to the gravitropic response, regarding the involvement of [Ca2+]cyt as a mediator of IAA moveme
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Mosquna, Assaf, and Sean Cutler. Systematic analyses of the roles of Solanum Lycopersicum ABA receptors in environmental stress and development. United States Department of Agriculture, 2016. http://dx.doi.org/10.32747/2016.7604266.bard.

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Drought and other abiotic stresses have major negative effects on agricultural productivity. The plant hormone abscisic acid (ABA) regulates many responses to environmental stresses and can be used to improve crop performance under stress. ABA levels rise in response to diverse abiotic stresses to coordinate physiological and metabolic responses that help plants survive stressful environments. In all land plants, ABA receptors are responsible for initiating a signaling cascade that leads to stomata closure, growth arrest and large-scale changes in transcript levels required for stress toleranc
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Lers, Amnon, and Pamela J. Green. LX Senescence-Induced Ribonuclease in Tomato: Function and Regulation. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7586455.bard.

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Natural leaf senescence, which occurs even when growth conditions are near optimal, has a negative influence on yield. Postharvest induced senescence contributes to the losses of quality in flowers, foliage, and vegetables. Strategies designed to control the senescence process in crop plants could therefore have great applied significance. However, the successful design of such strategies requires a better insight into the senescence machinery and control in higher plants. A main feature of senescence is the hydrolysis of macromolecules by hydrolases of various types such as ribonucleases (RNa
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Amir, Rachel, David J. Oliver, Gad Galili, and Jacline V. Shanks. The Role of Cysteine Partitioning into Glutathione and Methionine Synthesis During Normal and Stress Conditions. United States Department of Agriculture, 2013. http://dx.doi.org/10.32747/2013.7699850.bard.

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The objective of this research is to study the nature of the competition for cysteine (Cys), the first organic sulfur-containing compound, between its two main metabolites, glutathione (GSH) and methionine (Met). GSH plays a central role in protecting plants during various stresses, while Met, an essential amino acid, regulates essential processes and metabolites in plant cells through its metabolite S-adenosyl-Met. Our results, which are based on flux analysis and measurements of Met- metabolites, show that the flux towards Met synthesis is high during non-stress conditions, however the flux
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