24-EPIBRASSINOLIDE INDUCES SALT TOLERANCE OF MILLET (Panicum miliaceum) SEEDLINGS INVOLVING REACTIVE OXYGEN SPECIES
Abstract
The treatment of millet seedlings with 24-epibrassinolide (24-EBL) was shown to cause a transient increase in their hydrogen peroxide content, the subsequent activation of antioxidant enzymes (superoxide dismutase, catalase, guaiacol peroxidase) and the development of their resistance to salt stress. Antioxidant dimethylthiourea and NADPH oxidase inhibitor imidazole leveled these processes. It was concluded that the induction of millet salt tolerance by exogenous 24-EBL was mediated by the enhancement of reactive oxygen species level associated with the increased activity of NADPH oxidase.
About the Authors
A. A. VAYNER
Харьковский национальный аграрный университет им. В. В. Докучаева
Ukraine
Ukraine
Yu. E. KOLUPAEV
Харьковский национальный аграрный университет им. В. В. Докучаева
Ukraine
Ukraine
T. O. YASTREB
Харьковский национальный аграрный университет им. В. В. Докучаева
Ukraine
Ukraine
V. A. KHRIPACH
Институт биоорганической химии НАН Беларуси, Минск
Belarus
Belarus
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