[The influence of 24-epibrassidinole on the hormone status of wheat plants under sodium chloride].
We studied the influence of the preconditioning of wheat germ (Triticum aestivum L.) with 0.4 microM 24-epibrassidinole (EB) on the growth and hormone status of plants under the influence of 2% NaCl. The preconditioning with EB promoted the lowering of the extent of the damaging influence of pickling on the growth of germs. The important contribution to the realization of the protective action of EB in the preconditioning of plants is probably that of its ability to lower the level of stress-induced abscisic acid accumulation and the decrease in the content of indole-acetic acid. At the same time, the cytokinin concentration in plants preconditioned with EB under pickling was practically the same as in plants without stress. This fact combined with data about the ability of EB to induce the increase in cytokinin content in wheat, obtained before, allowed us to assume that the protective action of EB on plants is connected, first of all, with the prevention of the increase in level of hormones of cytokinin nature under pickling.
Aval'baev
A M
AM
Iuldashev
R A
RA
Fatkhutdinova
R A
RA
Urusov
F A
FA
Safutdinova
Iu V
IuV
Shakirova
F M
FM
D000040:Abscisic Acid / Q000378:metabolism; D000222:Adaptation, Physiological / Q000187:drug effects*; D060406:Brassinosteroids; D002777:Cholestanols / Q000494:pharmacology*; D003583:Cytokinins / Q000378:metabolism; D007210:Indoleacetic Acids / Q000378:metabolism; D010937:Plant Growth Regulators / Q000378:metabolism*; D054712:Salinity; D012965:Sodium Chloride / Q000494:pharmacology; D013260:Steroids, Heterocyclic / Q000494:pharmacology*; D014908:Triticum / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism
D060406:Brassinosteroids; D002777:Cholestanols; D003583:Cytokinins; D007210:Indoleacetic Acids; D010937:Plant Growth Regulators; D013260:Steroids, Heterocyclic; D012965:Sodium Chloride; C030737:indoleacetic acid; D000040:Abscisic Acid; C023623:brassinolide