Effect of Hydrogen Sulfide Donor on Antioxidant State of Wheat Plants and Their Resistance to Soil Drought


如何引用文章

全文:

开放存取 开放存取
受限制的访问 ##reader.subscriptionAccessGranted##
受限制的访问 订阅存取

详细

Effects of plant treatment with a donor of hydrogen sulfide—sodium hydrosulfide—on the state of antioxidative and osmoprotective systems of young plants of winter wheat (Triticum aestivum L.) cv. Doskonala under conditions of soil drought (progressive decrease in soil moisture down to 25–30% of the total moisture capacity) were studied. Spraying of plants with NaHS solutions (0.1–0.5 mM) before the drought significantly alleviated the growth suppression and favored the conservation of the chlorophyll pool under drought conditions. The beneficial effect of sodium hydrosulfide on plants was eliminated by their simultaneous treatment with hydroxylamine, which is a scavenger of hydrogen sulfide. The plant pretreatment with NaHS prevented the drought-induced accumulation of hydrogen peroxide and that of a lipid peroxidation product (malonic dialdehyde) in leaves. Such pretreatment also promoted an increase in the activity of superoxide dismutase (SOD) and prevented a stress-induced decrease in activities of catalase and guaiacol peroxidase in the leaves. Furthermore, the hydrogen sulfide donor elevated the concentration of proline and considerably increased levels of anthocyanins and UV-absorbing flavonoids under the drought. It is concluded that the plant drought protection afforded by the hydrogen sulfide donor depends to large extent on SOD and flavonoid compounds.

作者简介

Yu. Kolupaev

Dokuchaev National Agrarian University

编辑信件的主要联系方式.
Email: plant.biology.knau@gmail.com
乌克兰, Kharkiv, 62483

E. Firsova

Dokuchaev National Agrarian University

Email: plant.biology.knau@gmail.com
乌克兰, Kharkiv, 62483

T. Yastreb

Dokuchaev National Agrarian University

Email: plant.biology.knau@gmail.com
乌克兰, Kharkiv, 62483

N. Ryabchun

Yur’ev Institute of Plant Breeding, National Academy of Agrarian Sciences of Ukraine

Email: plant.biology.knau@gmail.com
乌克兰, Kharkiv, 61060

V. Kirichenko

Dokuchaev National Agrarian University; Yur’ev Institute of Plant Breeding, National Academy of Agrarian Sciences of Ukraine

Email: plant.biology.knau@gmail.com
乌克兰, Kharkiv, 62483; Kharkiv, 61060

补充文件

附件文件
动作
1. JATS XML

版权所有 © Pleiades Publishing, Ltd., 2019