Abscisic Acid-Induced Heat Tolerance in Bromus inermis Leyss Cell-Suspension Cultures (Heat-Stable, Abscisic Acid-Responsive Polypeptides in Combination with Sucrose Confer Enhanced Thermostability)
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منابع مشابه
Factors Influencing the Induction of Freezing Tolerance by Abscisic Acid in Cell Suspension Cultures of Bromus inermis Leyss and Medicago sativa L.
A 2-gram fresh weight inoculum of bromegrass (Bromus inermis Leyss. culture BG970) cell suspension culture treated with 7.5 x 10(-5) molar abscisic acid (ABA) for 7 days at 25 degrees C survived slow cooling to -60 degrees C. Over 80% of the cells in ABA treated cultures survived immersion in liquid N(2) after slow cooling to -40 or -60 degrees C. In contrast, a 6-gram fresh weight inoculum onl...
متن کاملStructure-Activity Relationships of Abscisic Acid Analogs Based on the Induction of Freezing Tolerance in Bromegrass (Bromus inermis Leyss) Cell Cultures.
The induction of freezing tolerance in bromegrass (Bromus inermis Leyss) cell culture was used to investigate the activity of absisic acid (ABA) analogs. Analogs were either part of an array of 32 derived from systematic alterations to four regions of the ABA molecule or related, pure optical isomers. Alterations were made to the functional group at C-1 (acid replaced with methyl ester, aldehyd...
متن کاملSynthesis of abscisic Acid-responsive, heat-stable proteins in embryonic axes of dormant wheat grain.
Germination of embryonic axes from dormant grain is inhibited by low concentrations of abscisic acid (ABA) compared with axes from nondormant grain. Incubation of dormant grain axes in 0.05 to 50 micromolar ABA caused the prolonged synthesis of a set of heat-stable proteins. Two of these proteins were identified as dehydrins. In nondormant grain axes, 100- to 1000-fold greater ABA concentration...
متن کاملContent during Abscisic Acid Induced Freezing Tolerance in Bromegrass Cells1
Changes in water content and dry weight were determined in control cells and those induced to cold harden in response to abscisic acid (ABA) treatment (7.5 x 10-5 molar). Bromegrass (Bromus inermis Leyss cv Manchar) cells grown in suspension culture at room temperature (230C) for 7 days acclimated to -28°C (LT50) when treated with ABA, or to -50C when untreated. ABA significantly reduced cell g...
متن کاملAAO ABSCISIC ALDEHYDE OXIDASE ABA1-4 ABSCISIC ACID DEFICIENT 1–4 ABCG ATP-BINDING CASSETTE G ABF ABSCISIC ACID-RESPONSIVE ELEMENT BINDING FACTOR ABI ABSCISIC ACID INSENSITIVE Abscisic Acid Implication in Plant Growth and Stress Responses
L.-S.P. Tran and S. Pal (eds.), Phytohormones: A Window to Metabolism, Signaling and Biotechnological Applications, DOI 10.1007/978-1-4939-0491-4_2, © Springer Science+Business Media New York 2014 Abstract Abscisic acid (ABA) is an important phytohormone regulating various physiological aspects in plants such as seed maturation, dormancy, seedling growth, and stomatal behaviour. In this chapter...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1994
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.105.1.181