Relevant bibliographies by topics / Abscisic acid

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Academic literature on the topic 'Abscisic acid'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 March 2023

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Journal articles on the topic "Abscisic acid"

1

Hetherington, Alistair M. "Abscisic acid." Current Biology 9, no. 11 (June 1999): R390. http://dx.doi.org/10.1016/s0960-9822(99)80248-6.

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Zaharia, L. Irina, Mary K. Walker-Simmon, Carlos Nicolás Rodríguez, and Suzanne R. Abrams. "Chemistry of Abscisic Acid, Abscisic Acid Catabolites and Analogs." Journal of Plant Growth Regulation 24, no. 4 (December 2005): 274–84. http://dx.doi.org/10.1007/s00344-005-0066-2.

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Bertrand, Suzanne, Nicole Benhamou, Paul Nadeau, Daniel Dostaler, and André Gosselin. "Immunogold localization of free abscisic acid in tomato root cells." Canadian Journal of Botany 70, no. 5 (May 1, 1992): 1001–11. http://dx.doi.org/10.1139/b92-124.

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Ultrastructural localization of abscisic acid in tomato (Lycopersicon esculentum Mill. cv. Vedettos) seedling roots is determined with the indirect protein A–gold approach. Polyclonal antibodies recognizing specifically the free (+)cis, trans form of abscisic acid are used as the first step in the immunolocalization procedure. Evidence is presented that its distribution varies within the different tissues of the tomato root. In the root cap cells, free abscisic acid accumulates mainly in the apoplast, in the cytoplasmic vesicles, and in the amyloplasts, around starch grains. In columella and meristematic cells, it accumulates mainly at the junction area with root cap cells, in the wall, and in the mucigel layer outside the root. Abscisic acid accumulation in the wall, the middle lamella, and the mucigel layer of the root cap cells may play a role in the root response to environmental stimuli. The cytochemical labeling of polygalacturonic acids, as recognized by the Aplysia depilans gonad lectin complexed to colloidal gold, follows closely the immunolocalization of abscisic acid. The secretory process of the root mucilage and the translocation of abscisic acid may be related. The significance of the apparent relationship between abscisic acid accumulation and the secretion of polygalacturonic acids is not yet understood. A role for apoplastic abscisic acid in a root-to-shoot communication system is discussed. Key words: abscisic acid, root physiology, immunolocalization, tomato.
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Giraudat, Jérôme. "Abscisic acid signaling." Current Opinion in Cell Biology 7, no. 2 (January 1995): 232–38. http://dx.doi.org/10.1016/0955-0674(95)80033-6.

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Cutler, Adrian. "Understanding Abscisic Acid." Journal of Plant Growth Regulation 24, no. 4 (December 2005): 251–52. http://dx.doi.org/10.1007/s00344-005-0112-0.

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Wenkai, Yi, Wang Jia, Yang Hui, Tian Yun, and Lu Xiangyang. "Abscisic Acid Receptors: Abscisic Acid Signaling Transduction Pathways in Plants." CHINESE BULLETIN OF BOTANY 47, no. 5 (January 15, 2013): 515–24. http://dx.doi.org/10.3724/sp.j.1259.2012.00515.

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Santiago, Julia, Florine Dupeux, Adam Round, Regina Antoni, Sang-Youl Park, Marc Jamin, Sean R. Cutler, Pedro Luis Rodriguez, and José Antonio Márquez. "The abscisic acid receptor PYR1 in complex with abscisic acid." Nature 462, no. 7273 (November 8, 2009): 665–68. http://dx.doi.org/10.1038/nature08591.

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Netting, AG, and BV Milborrow. "Endogenous Biosynthetic Precursors of (+)-Abscisic Acid. II. Incorporation of Isotopes From ( Plus or Minus )-[2H]Abscisic Aldehyde, 18O2 and H218O." Functional Plant Biology 21, no. 3 (1994): 345. http://dx.doi.org/10.1071/pp9940345.

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Tomato shoots that had been (a) fed (�)-[2H9]abscisic aldehyde via the xylem or (b) fed H218O together with (�)-[2H9]abscisic aldehyde via the xylem or (c) exposed to 18O2 and fed (�)-[2H9]abscisic aldehyde, were then wilted. The abscisic acid present was isolated, methylated and resolved into (+)- and (-)- methyl abscisate. These methyl abscisate samples were then examined by negative ion chemical ionisation (methane) gas chromatography/mass spectrometry. The undeuteriated (+)-abscisic acid contained no 180 from H218O but did contain one 18O from 18O2. No 18O from either of these sources was present in the undeuteriated (-)-abscisic acid. It was not possible to discount the xanthophyll hypothesis for the origin of stress-induced abscisic acid on the basis of these experiments. Both (+)- and (-)- multiply deuteriated abscisic acid contained one and two 18O atoms from H218O but none from 18O2. It is postulated that this multiply deuteriated (�)-abscisic acid is formed by a separate enzyme system from that which forms endogenous stress-induced (+)-abscisic acid. On the basis of the low incor- poration of abscisic aldehyde into abscisic acid, it is suggested that the endogenous precursor of stress- induced abscisic acid is an as yet unidentified structure and that abscisic aldehyde competes with it.
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Wilen, Ronald W., Bruce E. Ewan, and Lawrence V. Gusta. "Interaction of abscisic acid and jasmonic acid on the inhibition of seed germination and the induction of freezing tolerance." Canadian Journal of Botany 72, no. 7 (July 1, 1994): 1009–17. http://dx.doi.org/10.1139/b94-127.

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The possible interaction of the two growth regulators, abscisic acid and jasmonic acid, on the inhibition of seed germination and the induction of freezing tolerance in bromegrass (Bromus inermis Leyss) cell cultures was investigated. Both of these processes are known to be affected by exogenous abscisic acid. Alfalfa (Medicago sativa), cornflower (Centurae gynura), cress seed (Lepidium sativum), maize (Zea mays), and wheat (Triticum aestivum) seeds were treated with varying concentrations of abscisic acid and jasmonic acid, either alone or in combination. In all species, seed germination was inhibited by 10 μM abscisic acid at 23 °C. In contrast, at 23 °C, jasmonic acid was partially inhibitory only at 100 μM; however, 10 μM jasmonic acid inhibited germination in all species at 10 °C. Jasmonic acid in combination with abscisic acid resulted in a higher degree of germination inhibition at 23 °C in all species than either growth regulator applied separately. Treatment of a bromegrass suspension cell culture with 75 μM abscisic acid at 25 °C for 7 days increased the freezing tolerance from −10 °C to lower than −35 °C. In contrast, jasmonic acid (0.25–75 μM) had no detectable effect on freezing tolerance. Jasmonic acid in combination with suboptimal concentrations of abscisic acid, however, enhanced the abscisic acid-induced freezing tolerance in these cells. In contrast, a combination of 75 μM abscisic acid and 25 or 75 μM jasmonic acid reduced the freezing tolerance of these cells compared with treatment with abscisic acid alone. Key words: abscisic acid, freezing tolerance, germination, jasmonic acid.
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Marsh, A., T. Smith, A. Clark, G. Clarkson, and P. Taylor. "Synthesis of (+)-Abscisic Acid." Synfacts 2007, no. 4 (April 2007): 0353. http://dx.doi.org/10.1055/s-2007-968280.

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Dissertations / Theses on the topic "Abscisic acid"

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Ferreira, Gisela. "Reguladores vegetais na superação da dormência, balanço hormonal e degradação de reservas em sementes de Annona diversifolia SAFF. e A. purpurea Moc. & Sessé Ex Dunal (Annonaceae) /." Botucatu, 2011. http://hdl.handle.net/11449/106722.

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Memorial apresentado ao Instituto de Biociências, Universidade Estadual Paulista "Júlio de Mesquita Filho", como parte dos requisitos para obtenção do título de Professor Livre-Docente na Dosciplina de Fisiologia Vegetal
Resumo: As sementes de anonáceas são conhecidas por apresentarem mecanismos de dormência, o que dificulta a perpetuação das espécies e a formação de áreas produtivas para a exploração comercial. Deste modo, os objetivos deste trabalho foram estudar curva de aquisição de água; a germinação de sementes tratadas com GA3 e GA4+7 + Benziladenina; o balanço hormonal e a degradação de reservas em sementes de Annona diversifolia Saff e Annona purpurea Moc & Sessé ex Dunal tratadas com reguladores vegetais para a superação da dormência. Para tanto foram realizados três experimentos. Para a construção da curva de aquisição de água foram utilizadas 4 repetições de 25 sementes que foram mantidas em embebição e pesadas durante 480 horas. O segundo experimento foi constituído pela germinação das sementes tratadas com os reguladores vegetais; o delineamento experimental empregado foi o inteiramente casualizado com 4 repetições de 25 sementes por parcela em esquema fatorial 2 x 7 (reguladores x concentrações). Os tratamentos foram constituídos pelas combinações entre concentrações de GA3 e de GA4+7 + Benziladenina (GA4+7 + BA) x 0, 200, 400, 500, 600, 800 e 1000 mg L-1 i.a.. No terceiro experimento foram quantificados ABA (Ácido abscísico) e GA (Giberelinas), proteínas, açúcares... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Annonaceae seeds have been known by presenting dormancy mechanisms, which makes difficult the perpetuation of species and the formation of roductive areas for commercial exploration. Thus, the present work aimed to evaluate water uptake curve; germination of seeds treated with GA3 and GA4+7 + Benzyl adenine; hormone balance and reserve degradation in Annona diversifolia Saff and Annona purpurea Moc & Sessé ex Dunal seeds subjected to plant growth regulators for dormancy break. Three experiments were carried out. To obtain the water uptake curve, four replicates of 25 seeds were kept in imbibition and weighed for 480h. The second experiment evaluated the germination of seeds treated with plant growth regulators; experimental design was completely randomized, with four replicates of 25 seeds per plot in the 2x7 (plant growth regulators x concentrations) factorial arrangement. Treatments consisted of combinations between concentrations of GA3 and GA4+7 + Benzyl adenine (GA4+7 + BA) with 0, 200, 400, 500, 600, 800 and 1000 mg L-1 a.i.. In the third experiment, ABA (abscisic acid), GA (gibberellins), proteins, total soluble sugars and lipids were quantified in seeds soaked in water, without imbibition and soaked in GA4+7 + BA for 15 days (on the 0th, 2nd, 5th, 10th and 15th days). Based... (Complete abstract click electronic access below)
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Tarr, Alun Rhys. "Genetically induced abscisic acid deficiencies." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335475.

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Saito, Shigeki. "Studies on (+)-abscisic acid 8'-hydroxylase, a key enzyme in the catabolism of abscisic acid." Kyoto University, 2005. http://hdl.handle.net/2433/144582.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(農学)
甲第11801号
農博第1521号
新制||農||916(附属図書館)
学位論文||H17||N4075(農学部図書室)
23541
UT51-2005-F831
京都大学大学院農学研究科応用生命科学専攻
(主査)教授 坂田 完三, 教授 矢﨑 一史, 教授 宮川 恒
学位規則第4条第1項該当
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Milborrow, Barry Vaughan Biotechnology &amp Biomolecular Sciences Faculty of Science UNSW. "Biosynthesis of abscisic acid in plants." Awarded by:University of New South Wales. Biotechnology & Biomolecular Sciences, 2007. http://handle.unsw.edu.au/1959.4/42883.

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Parry, Andrew David. "Abscisic acid biosynthesis in higher plants." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328480.

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Farias, Euménes Tavares de [UNESP]. "Expressão gênica no embrião e no endosperma micropilar de sementes de café (coffea arabica L.) durante a germinação." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/86394.

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Made available in DSpace on 2014-06-11T19:22:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-12-03Bitstream added on 2014-06-13T20:09:12Z : No. of bitstreams: 1 farias_et_me_botfca.pdf: 343928 bytes, checksum: d998c3f6cbfb1c91556f0445b48bd677 (MD5)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A germinação de sementes de café (Coffea arabica L.) é lenta e irregular, controlada por eventos que ocorrem, simultaneamente, no embrião e no endosperma. Embora os referidos eventos estejam determinados, ainda são necessários estudos sobre a fisiologia molecular, para auxiliar na avaliação da qualidade fisiológica das sementes durante a germinação. O objetivo do trabalho foi realizar estudos fisiológicos e moleculares durante a germinação de sementes embebidas em água e em ácido abscísico (ABA) na concentração de 1000 μM. Durante o trabalho foi determinado o teor de água, a curva de embebição, a germinação, o crescimento do embrião e a expressão dos genes associados com o crescimento do embrião e com a degradação do endosperma micropilar. Para tanto, embriões e os endospermas micropilares foram isolados para a extração de RNA total e síntese de cDNA. “Primers” específicos foram desenhados para o estudo da expressão gênica em PCR em tempo real. Foi estudada a expressão dos genes actina, ciclina e α-expansina, associados ao crescimento do embrião, e α-galactosidase, β-manosidase e endo-β-mananase, associados à degradação do endosperma micropilar. A curva de embebição apresentou um padrão trifásico. A primeira semente de café germinou com cinco dias de embebição e 50% de germinação ocorreram no décimo dia de embebição. A expressão dos genes associados com o crescimento do embrião, tais como actina, α-expansina e quinase dependente de ciclina, aumentou durante a germinação em água e inibiu parcialmente a expressão destes genes quando tratados com ABA. A expressão de β-manosidase e endo-β-mananase aumentou durante a embebição em água e ABA inibiu completamente a expressão. No entanto, α-galactosidase parece ter a expressão mais constitutiva durante a germinação em água e é menos influenciada por ABA, em comparação com outras enzimas estudadas
Germination of coffee (Coffea arabica L.) seed is slow and uneven. The germination is a net result of events that occur simultaneously in the embryo and endosperm under the control of ABA. The aim of the study was to perform physiological and molecular studies during germination of seeds imbibed in water and 1000 μM abscisic acid (ABA). We studied the expression of the genes ciclin, α-expansin and cyclin-dependent of kinase in the embryo and α-galactosidase, β-mannosidase, endo-β-mannanase in the micropylar endosperm. The first coffee seed germinate at five days of imbibition and 50% germinate at tenth day of imbibition. Coffee embryo grew inside the seed pior radicle protrusion and ABA inhibited the embryo grow as well as radicle protrusion. The expression of the genes associated with the growth of the embryo such as ciclin, α-expansin and cyclin-dependent of kinase increased during germination and ABA partially inhibited the expression of these genes. The expression of β-mannosidase and endo-β-mannanase increased during imbibitions in water and ABA completely inhibited its expression. However, α-galactosidase seems to have a more constitutive expression during germination in water and it is less affected by ABA as compared with other enzymes studied
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Farias, Euménes Tavares de 1986. "Expressão gênica no embrião e no endosperma micropilar de sementes de café (coffea arabica L.) durante a germinação /." Botucatu :, 2012. http://hdl.handle.net/11449/86394.

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Orientador: Edvaldo Aparecido Amaral da Silva
Banca: Claudio Cavariani
Banca: Juliana Pereira Bravo
Resumo: A germinação de sementes de café (Coffea arabica L.) é lenta e irregular, controlada por eventos que ocorrem, simultaneamente, no embrião e no endosperma. Embora os referidos eventos estejam determinados, ainda são necessários estudos sobre a fisiologia molecular, para auxiliar na avaliação da qualidade fisiológica das sementes durante a germinação. O objetivo do trabalho foi realizar estudos fisiológicos e moleculares durante a germinação de sementes embebidas em água e em ácido abscísico (ABA) na concentração de 1000 μM. Durante o trabalho foi determinado o teor de água, a curva de embebição, a germinação, o crescimento do embrião e a expressão dos genes associados com o crescimento do embrião e com a degradação do endosperma micropilar. Para tanto, embriões e os endospermas micropilares foram isolados para a extração de RNA total e síntese de cDNA. "Primers" específicos foram desenhados para o estudo da expressão gênica em PCR em tempo real. Foi estudada a expressão dos genes actina, ciclina e α-expansina, associados ao crescimento do embrião, e α-galactosidase, β-manosidase e endo-β-mananase, associados à degradação do endosperma micropilar. A curva de embebição apresentou um padrão trifásico. A primeira semente de café germinou com cinco dias de embebição e 50% de germinação ocorreram no décimo dia de embebição. A expressão dos genes associados com o crescimento do embrião, tais como actina, α-expansina e quinase dependente de ciclina, aumentou durante a germinação em água e inibiu parcialmente a expressão destes genes quando tratados com ABA. A expressão de β-manosidase e endo-β-mananase aumentou durante a embebição em água e ABA inibiu completamente a expressão. No entanto, α-galactosidase parece ter a expressão mais constitutiva durante a germinação em água e é menos influenciada por ABA, em comparação com outras enzimas estudadas
Abstract: Germination of coffee (Coffea arabica L.) seed is slow and uneven. The germination is a net result of events that occur simultaneously in the embryo and endosperm under the control of ABA. The aim of the study was to perform physiological and molecular studies during germination of seeds imbibed in water and 1000 μM abscisic acid (ABA). We studied the expression of the genes ciclin, α-expansin and cyclin-dependent of kinase in the embryo and α-galactosidase, β-mannosidase, endo-β-mannanase in the micropylar endosperm. The first coffee seed germinate at five days of imbibition and 50% germinate at tenth day of imbibition. Coffee embryo grew inside the seed pior radicle protrusion and ABA inhibited the embryo grow as well as radicle protrusion. The expression of the genes associated with the growth of the embryo such as ciclin, α-expansin and cyclin-dependent of kinase increased during germination and ABA partially inhibited the expression of these genes. The expression of β-mannosidase and endo-β-mannanase increased during imbibitions in water and ABA completely inhibited its expression. However, α-galactosidase seems to have a more constitutive expression during germination in water and it is less affected by ABA as compared with other enzymes studied
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Shinde, Suhas, Shivakumar Devaiah, and Aruna Kilaru. "Profiling Abscisic Acid-Induced Changes in Fatty Acid Composition in Mosses." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/4745.

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In plants, change in lipid composition is a common response to various abiotic stresses. Lipid constituents of bryophytes are of particular interest as they differ from that of flowering plants. Unlike higher plants, mosses have high content of very long-chain polyunsaturated fatty acids. Such lipids are considered to be important for survival of nonvascular plants. Here, using abscisic acid (ABA )-induced changes in lipid composition in Physcomitrella patens as an example, a protocol for total lipid extraction and quantification by gas chromatography (GC) coupled with flame ionization detector (FID) is described.
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Peng, Xiaobing Carleton University Dissertation Biology. "The role of abscisic acid and abscisic acid-analogs in inducing desiccation tolerance in microspore-derived embryos of Brassica Napus." Ottawa, 1994.

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Smith, Timothy Robert. "Enantioselective Synthesis and Chemical Genomics of Abscisic Acid." Thesis, University of Warwick, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491505.

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Abscisic acid is an important phytohonnone implicated in many aspects of plant growth and development. The search for the biological targets of this ubiquitous honnone has produced many sophisticated strategies for the preparation of analogues and conjugates for use in affinity-based methods. In this study, biologically active . enantiomerically pure abscisic acid conjugates were synthesised and screened against a phage display library of Arabidopsis thaliana cDNA products in order to identify receptor proteins. A short and high-yielding synthesis of enantiomerically pure S-(+)- and R-(-)abscisic acid are described. The syntheses proceed through key intennediates that preferentially recrystallise as single diastereoisomers for each enantiomer. This versatile route to abscisic acid was adapted for generation of novel side-chain analogues suitable for conjugation and immobilisation. S-(+)-Abscisic acid conjugated to biotin via an acyl hydrazone linkage was assessed for in vivo stability using bioassays twinned with LCMS2 analysis on deuterated samples. Cleavage ofthe otherwise stable acyl hydrazone linkage was observed. Phage display biopanning on immobilised conjugates selected two protein fragments that had high affinity for the immobilised abscisic acid. The corresponding proteins, CBL-interacting protein kinase 6 and Vernalization Independence 5 are likely candidates as abscisic acid binding proteins. Biopanning on a Magic-Tag® immobilised analogue similarly selected for three putative abscisic acid binding proteins: EFS, peptidyl-prolyl cis-trans isomerase and CAXX amino protease.
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Books on the topic "Abscisic acid"

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Yoshida, Takuya, ed. Abscisic Acid. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1.

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J, Davies W., Jones H. G, and Society for Experimental Biology (Great Britain), eds. Abscisic acid: Physiology and biochemistry. Oxford: BIOS Scientific Publishers, 1991.

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J, Davies W., and Jones H. G, eds. Abscisic acid: Physiology and biochemistry. Oxford: Bios Scientific Publishers, 1991.

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Zhang, Da-Peng, ed. Abscisic Acid: Metabolism, Transport and Signaling. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9424-4.

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I, Kefeli V., Korableva N. P, and Institut fiziologii rasteniĭ im. K.A. Timiri͡a︡zeva., eds. Prirodnyĭ ingibitor rosta--abst͡s︡izovai͡a︡ kislota. Moskva: "Nauka,", 1989.

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Achwanya, Oliver S. Reflections on synthesis of abscisic acid in water-stressed leaves. Njoro, Kenya: Egerton University College, 1986.

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The role of ABA and ABA-induced gene expression in cold acclimation of Arabidopsis thaliana. Uppsala: Dept. of Molecular Genetics, Uppsala Genetic Center, Swedish University of Agricultural Sciences, 1993.

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Cutler, Sean Randolph. Isolation and characterization of an arabidopsis mutant supersensitive to abscisic acid. Ottawa: National Library of Canada, 1994.

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Welin, Björn. Molecular analysis of cold acclimation in Arabidopsis thaliana and engineering of biosynthetic pathways leading to enhanced osmo tolerance. Uppsala: Dept. of Molecular Genetics, Uppsala Genetic Center, Swedish University of Agricultural Sciences, 1994.

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Henriksson, Kerstin Nordin. Cold acclimation and expression of low-temperature-induced genes in Arabidopsis thaliana. Uppsala: Swedish University of Agricultural Sciences, Dept. of Molecular Genetics, Uppsala Genetic Center, 1995.

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Book chapters on the topic "Abscisic acid"

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Chen, Mo-Xian, Chong-Chong Lu, Jianhua Zhang, and Ying-Gao Liu. "In Situ Observation of Abscisic Acid Distribution in Major Crop Species by Immunofluorescence Labeling." In Abscisic Acid, 155–62. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_12.

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Julian, Jose, Alberto Coego, Abdulwahed F. Alrefaei, and Pedro L. Rodriguez. "Affinity Purification of Ubiquitinated Proteins Using p62-Agarose to Assess Ubiquitination of Clade A PP2Cs." In Abscisic Acid, 45–57. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_4.

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Gao, Bei, Mo-Xian Chen, and Fu-Yuan Zhu. "SWATH-MS Proteomic Approach to Discover Novel Protein Targets and Pathways in Response to Abscisic Acid." In Abscisic Acid, 191–200. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_15.

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Belda-Palazón, Borja, and Pedro L. Rodriguez. "Microscopic Imaging of Endosomal Trafficking of ABA Receptors." In Abscisic Acid, 59–69. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_5.

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Vaidya, Aditya S., and Sean R. Cutler. "Chemical Approaches for Improving Plant Water Use." In Abscisic Acid, 221–30. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_17.

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Soma, Fumiyuki, Fuminori Takahashi, Kazuo Shinozaki, and Kazuko Yamaguchi-Shinozaki. "Affinity Purification Followed by Liquid Chromatography–Tandem Mass Spectrometry to Identify Proteins Interacting with ABA Signaling Components." In Abscisic Acid, 181–89. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_14.

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Lee, Yeongmok, Suhyeon Heo, and Sangho Lee. "Inhibition of Type 2C Protein Phosphatases by ABA Receptors in Abscisic Acid–Mediated Plant Stress Responses." In Abscisic Acid, 1–16. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_1.

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Krzywinska, Ewa, Katarzyna Patrycja Szymanska, and Grazyna Dobrowolska. "Inhibition of SnRK2 Kinases by Type 2C Protein Phosphatases." In Abscisic Acid, 17–30. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_2.

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Yamashita, Kota, and Taishi Umezawa. "Phosphoproteomic Approaches to Evaluate ABA Signaling." In Abscisic Acid, 163–79. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_13.

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Liu, Shengxue, and Feng Qin. "Genome-Wide Association Analyses to Identify SNPs Related to Drought Tolerance." In Abscisic Acid, 201–19. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2156-1_16.

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Conference papers on the topic "Abscisic acid"

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Ndathe, Ruth. "Abscisic acid signaling pathway dynamics." In ASPB PLANT BIOLOGY 2020. USA: ASPB, 2020. http://dx.doi.org/10.46678/pb.20.1052032.

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Mo, Fan, Cong Ge, Yanling Li, Hao-Ru Tang, Qing Chen, Bo Sun, Yong Zhang, and Ya Luo. "Abscisic Acid Affects Strawberry Fruit Quality." In Proceedings of the 2018 International Conference on Management, Economics, Education, Arts and Humanities (MEEAH 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/meeah-18.2018.4.

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Ge, Cong, Fan Mo, Yanrling Li, Haorru Tang, Qing Chen, Bo Sun, Yong Zhang, and Ya Luo. "Abscisic Acid Affects Strawberry Fruit Antioxidant Capacity." In 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/iceep-18.2018.105.

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Shaposhnikov, A. I., N. A. Vishnevskaya, V. Yu Shakhnazarova, D. S. Syrova, E. V. Borodina, O. N. Kovaleva, and O. K. Strunnikova. "The effect of Fusarium culmorum and Pseudomonas fluorescens 2137 on the content of abscisic acid in the roots and shoots of barley seedlings." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.220.

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Inoculation of barley with a F. culmorum not accompanied by an increase in the number of abscisic acid in plants, but under P. fluorescens 2137 inoculation, the accumulation of abscisic acid in the roots occurred.
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Zhang, Qian, Huashan Lian, Xun Wang, Wei Jiang, and Lijin Lin. "Effects of Abscisic Acid (ABA) on Growth of Cosmos sulphureus." In 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/iceesd-17.2017.133.

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Kovaleva, L. V., A. S. Voronkov, E. V. Zakharova, and Yu V. Minkina. "ABSCISIC ACID AS POTENTIAL SIGNAL OF MALE STERILITY IN PETUNIA HYBRIDA." In The All-Russian Scientific Conference with International Participation and Schools of Young Scientists "Mechanisms of resistance of plants and microorganisms to unfavorable environmental". SIPPB SB RAS, 2018. http://dx.doi.org/10.31255/978-5-94797-319-8-926-930.

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Kudoyarova, G. R., T. N. Arkhipova, D. S. Veselov, and L. B. Vysotskaya. "Hormonal balance of plants and its relationship with changes in plant growth and productivity under the influence of rhizospheric bacteria." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.137.

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Here we analyze the dependence of the growth and water relations on the ability of bacteria to influence the content and distribution of abscisic acid (ABA) in plants under different growing conditions.
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Lu, Qiyu, Guochao Sun, Ji Liu, and Yi Tang. "Effects of Abscisic Acid on Growth and Cadmium Accumulation of Pea Seedlings." In Proceedings of the 2018 3rd International Conference on Advances in Materials, Mechatronics and Civil Engineering (ICAMMCE 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/icammce-18.2018.14.

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Yan, Zesheng, Qin Li, and Yi Tang. "Effects of Exogenous Abscisic Acid on Photosynthesis of Lettuce under NaCl Stress." In 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/iceep-16.2016.62.

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Yu, Xuena, Jun Tan, and Yi Tang. "Effects of Abscisic Acid on Photosynthetic Characteristics of Radish under Aluminum Stress." In 2016 2nd International Conference on Advances in Energy, Environment and Chemical Engineering (AEECE 2016). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/aeece-16.2016.19.

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Reports on the topic "Abscisic acid"

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MCCARTY D R. GENETIC ANALYSIS OF ABSCISIC ACID BIOSYNTHESIS. Office of Scientific and Technical Information (OSTI), January 2012. http://dx.doi.org/10.2172/1032839.

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Du, Z., K. Aghoram, and W. H. Jr Outlaw. Plant, cell, and molecular mechanisms of abscisic-acid regulation of stomatal apertures. In vivo phosphorylation of phosphoenolpyruvate carboxylase in guard cells of Vicia faba L. is enhanced by fusicoccin and suppressed by abscisic acid. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/629404.

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Stephan, Aaron B. Genetic Analysis of Ca2+ Priming in Arabidopsis Guard Cell Stomatal Closure in Response to the Drought Hormone Abscisic Acid. Office of Scientific and Technical Information (OSTI), November 2014. http://dx.doi.org/10.2172/1165060.

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Granot, David, and Sarah M. Assmann. Novel regulation of transpiration by sugar signals within guard cells. United States Department of Agriculture, January 2012. http://dx.doi.org/10.32747/2012.7597924.bard.

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Water is the major limiting factor in agriculture and stomata, composed of two guard cells and the pore they circumscribe, are the chief gates controlling plants’ water loss. The prevailing century old paradigm was that sugars act as an osmoticum in guard cells, contributing to the opening of the stomata. In contrast, we discovered that sugars close stomata and the closure is mediated by the sugar-sensing enzyme hexokinase (HXK) that triggers the abscisic acid (ABA)-signaling pathway within the guard cells. This new discovery suggests a sugar-sensing mechanism within guard cells that controls stomatal closure, and supports the existence of a stomatal feedback mechanism that coordinates photosynthesis with transpiration.
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Yalovsky, Shaul, and Julian Schroeder. The function of protein farnesylation in early events of ABA signal transduction in stomatal guard cells of Arabidopsis. United States Department of Agriculture, January 2002. http://dx.doi.org/10.32747/2002.7695873.bard.

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Loss of function mutations in the farnesyltransferase β subunit gene ERA1 (enhanced response to abscisic acid), cause abscisic acid hypersensitivity in seedlings and in guard cells. This results in slowed water loss of plants in response to drought. Farnesyltransferase (PFT) catalyses the attachment of the 15-carbon isoprenoid farnesyl to conserved cysteine residues located in a conserved C-terminal domain designated CaaX box. PFT is a heterodimeric protein comprised of an a and b sununits. The a subunit is shared between PFT and geranylgeranyltransferase-I (PGGTI) which catalyses the attachemt of the 20-carbon isoprenoid geranylgeranyl to CaaX box proteins in which the last amino acid is almost always leucine and in addition have a polybasic domain proximal to the CaaL box. Preliminary data presented in the proposal showed that increased cytoplasmic Ca2+ concentration in stomal guard cells in response to non-inductive ABA treatements. The goals set in the proposal were to characterize better how PFT (ERA1) affects ABA induced Ca2+ concentrations in guard cells and to identify putative CaaX box proteins which function as negative regulators of ABA signaling and which function is compromised in era1 mutant plants. To achieve these goals we proposed to use camelion Ca2+ sensor protein, high throughput genomic to identify the guard cell transcriptome and test prenylation of candidate proteins. We also proposed to focus our efforts of RAC small GTPases which are prenylated proteins which function in signaling. Our results show that farnesyltransferaseprenylates protein/s that act between the points of ABA perception and the activation of plasma membrane calcium influx channels. A RAC protein designated AtRAC8/AtRop10 also acts in negative regulation of ABA signaling. However, we discovered that this protein is palmitoylated and not prenylated although it contains a C-terminal CXXX motif. We further discovered a unique C-terminal sequence motif required for membrane targeting of palmitoylatedRACs and showed that their function is prenylation independent. A GC/MS based method for expression in plants, purification and analysis of prenyl group was developed. This method would allow highly reliable identification of prenylated protein. Mutants in the shared α subunit of PFT and PGGT-I was identified and characterized and was shown to be ABA hypersensitive but less than era1. This suggested that PFT and PGGT-I have opposing functions in ABA signaling. Our results enhanced the understanding of the role of protein prenylation in ABA signaling and drought resistance in plants with the implications of developing drought resistant plants. The results of our studies were published 4 papers which acknowledge support from BARD.
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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, January 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 tolerance. We wanted to test the meaning of root derived ABA signaling in drying soil on water balance. To this end we generated transgenic tomato lines in which ABA signaling is initiated by a synthetic agonist- mandipropamid. Initial study using a Series of grafting experiments indicate that that root ABA signaling has no effect on the immediate regulation of stomata aperture. Once concluded, these experiments will enable us to systematically dissect the physiological role of root-shoot interaction in maintaining the water balance in plants and provide new tools for targeted improvement of abiotic stress tolerance in crop plants.
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Lu, P., W. H. Jr Outlaw, B. G. Smith, and G. A. Freed. Plant, cell, and molecular mechanisms of abscisic-acid regulation of stomatal apertures. A new mechanism for the regulation of stomatal-aperture size in intact leaves: Accumulation of mesophyll-derived sucrose in the guard-cell wall of Vicia faba L. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/629405.

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Friedman, Haya, Julia Vrebalov, and James Giovannoni. Elucidating the ripening signaling pathway in banana for improved fruit quality, shelf-life and food security. United States Department of Agriculture, October 2014. http://dx.doi.org/10.32747/2014.7594401.bard.

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Background : Banana being a monocot and having distinct peel and pulp tissues is unique among the fleshy fruits and hence can provide a more comprehensive understanding of fruit ripening. Our previous research which translated ripening discoveries from tomato, led to the identification of six banana fruit-associated MADS-box genes, and we confirmed the positive role of MaMADS1/2 in banana ripening. The overall goal was to further elucidate the banana ripening signaling pathway as mediated by MADS-boxtranscriptional regulators. Specific objectives were: 1) characterize transcriptional profiles and quality of MaMADS1/2 repressed fruit; 2) reveal the role of additional MaMADSgenes in ripening; 3) develop a model of fruit MaMADS-box mode of action; and 4) isolate new components of the banana ripening signaling pathway. Major conclusion: The functions of the banana MaMADS1-5 have been examined by complimenting the rinor the TAGL1-suppressed lines of tomato. Only MaMADS5 exhibited partial complementation of TAGL1-suppressed and rinlines, suggesting that while similar genes play corresponding roles in ripening, evolutionary divergence makes heterologous complementation studies challenging. Nevertheless, the partial complementation of tomato TAGL1-surpessed and rinlines with MaMADS5 suggests this gene is likely an important ripening regulator in banana, worthy of further study. RNA-seqtranscriptome analysis during ripening was performed on WT and MaMADS2-suppressed lines revealing additional candidate genes contributing to ripening control mechanisms. In summary, we discovered 39 MaMADS-box genes in addition to homologues of CNR, NOR and HB-1 expressed in banana fruits, and which were shown in tomato to play necessary roles in ripening. For most of these genes the expression in peel and pulp was similar. However, a number of key genes were differentially expressed between these tissues indicating that the regulatory components which are active in peel and pulp include both common and tissue-specific regulatory systems, a distinction as compared to the more uniform tomato fruit pericarp. Because plant hormones are well documented to affect fruit ripening, the expressions of genes within the auxin, gibberellin, abscisic acid, jasmonic acid, salicylic and ethylene signal transduction and synthesis pathways were targeted in our transcriptome analysis. Genes’ expression associated with these pathways generally declined during normal ripening in both peel and pulp, excluding cytokinin and ethylene, and this decline was delayed in MaMADS2-suppressed banana lines. Hence, we suggest that normal MaMADS2 activity promotes the observed downward expression within these non-ethylene pathways (especially in the pulp), thus enabling ripening progression. In contrast, the expressions of ACSand ACOof the ethylene biosynthesis pathway increase in peel and pulp during ripening and are delayed/inhibited in the transgenic bananas, explaining the reduced ethylene production of MaMADS2-suppressed lines. Inferred by the different genes’ expression in peel and pulp of the gibberellins, salicylic acid and cytokinins pathways, it is suggested that hormonal regulation in these tissues is diverse. These results provide important insights into possible avenues of ripening control in the diverse fruit tissues of banana which was not previously revealed in other ripening systems. As such, our transcriptome analysis of WT and ripening delayed banana mutants provides a starting point for further characterization of ripening. In this study we also developed novel evidence that the cytoskeleton may have a positive role in ripening as components of this pathway were down-regulated by MaMADS2 suppression. The mode of cytoskeleton involvement in fruit ripening remains unclear but presents a novel new frontier in ripening investigations. In summary, this project yielded functional understanding of the role and mode of action of MaMADS2 during ripening, pointing to both induction of ethylene and suppression of non-ethylene hormonal singling pathways. Furthermore, our data suggest important roles for cytoskeleton components and MaMADS5 in the overall banana ripening control network. Implications: The project revealed new molecular components/genes involved in banana ripening and refines our understanding of ripening responses in the peel and pulp tissues of this important species. This information is novel as compared to that derived from the more uniform carpel tissues of other highly studied ripening systems including tomato and grape. The work provides specific target genes for potential modification through genetic engineering or for exploration of useful genetic diversity in traditional breeding. The results from the project might point toward improved methods or new treatments to improve banana fruit storage and quality.
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Lers, Amnon, E. Lomaniec, S. Burd, A. Khalchitski, L. Canetti, and Pamela J. Green. Analysis of Senescence Inducible Ribonuclease in Tomato: Gene Regulation and Function. United States Department of Agriculture, February 2000. http://dx.doi.org/10.32747/2000.7570563.bard.

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Natural leaf senescence 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. Senescence is regulated by differential gene expression yet, functional characterization of the genes specifically induced and study of their expression control, is still in its infancy. Study of senescence-specific genes is required to allow identification of regulatory elements participating in senescence-induced expression and thus provide insights into the genetic regulation of senescence. A main feature of senescence is the hydrolysis of macromolecules by hydrolases of various types such as RNases and proteases. This study was aimed a analysis of senescence-inducible RNases in tomato with the following objectives: Isolation of senescence-inducible RNase cDNA clones; Expression analyses of RNase genes during senescence; Identification of sequences required for senescence-induced gene expression; Functional analyses of senescence-inducible RNases. We narrowed our aims somewhat to focus on the first three objectives because the budget we were awarded was reduced from that requested. We have expanded our research for identification senescence-related RNase/nuclease activities as we thought it will direct us to new RNase/nuclease genes. We have also carried out research in Arabidopsis and parsley, which enabled us to draw mire general conclusions. We completed the first and second objectives and have made considerable progress on the remaining two. We have defined growth conditions suitable for this research and defined the physiological and biochemical parameters characteristic to the advance of leaf senescence. In tomato and arabidopsis we have focused on natural leaf senescence. Parsley was used mainly for study of postharvest senescence in detached leaves. We have identified a 41-kD a tomato nuclease, LeNUCI, specifically induced during senescence which can degrade both RNA and DNA. This activity could be induced by ethylene in young leaves and was subjected to detailed analysis, which enabled its classification as Nuclease I enzyme. LeNUCI may be involved in nucleic acid metabolism during tomato leaf senescence. In parsley senescing leaves we identified 2 main senescence-related nuclease activities of 41 and 39-kDa. These activities were induced in both naturally or artificially senescing leaves, could degrade both DNA and RNA and were very similar in their characteristics to the LeNUCI. Two senescence-induced RNase cDNAs were cloned from tomato. One RNase cDNA was identical to the tomato LX RNase while the second corresponded to the LE RNase. Both were demonstrated before to be induced following phosphate starvation of tomato cell culture but nothing was known about their expression or function in plants. LX gene expression was much more senescence specific and ethylene could activate it in detached young leaves. LE gene expression, which could be transiently induced by wounding, appeared to be activated by abscisic acid. We suggest that the LX RNase has a role in RNA catabolism in the final stage of senescence, and LE may be a defense-related protein. Transgenic plants were generated for altering LX gene expression. No major visible alterations in the phenotype were observed so far. Detailed analysis of senescence in these plants is performed currently. The LX promoter was cloned and its analysis is performed currently for identification of senescence-specific regulatory elements. In Arabidopsis we have identified and characterized a senescence-associated nuclease 1 gene, BFN1, which is highly expressed during leaf and stem senescence. BFN1, is the first example of a senescence- associated gene encoding a nuclease I enzyme as well as the first nuclease I cloned and characterized from Arabidopsis. Our progress should provide excellent tools for the continued analysis of regulation and function of senescence-inducible ribonucleases and nucleases in plants. The cloned genes can be used in reverse genetic approaches, already initiated, which can yield a more direct evidence for the function of these enzymes. Another contribution of this research will be in respect to the molecular mechanism, which controls senescence. We had already initiated in this project and will continue to identify and characterize regulatory elements involved in senescence-specific expression of the genes isolated in this work.
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