NDLI: 24-Epibrassinolide alleviated zinc-induced oxidative stress in radish (Raphanus sativus L.) seedlings by enhancing antioxidative system

Content Provider	Springer Nature Link
Author	Ramakrishna, Bellamkonda Rao, S. Seeta Ram
Copyright Year	2012
Abstract	This article encompasses the results on the effects of 24-epibrassinolide (EBR) on the changes in reactive oxygen species (ROS) and activities of antioxidative enzymes in radish (Raphanus sativus L.) seedlings subjected to zinc (Zn) stress. Zn toxicity resulted in significant enhancement in the level of membrane lipid peroxidation, protein oxidation, contents of hydrogen peroxide (H2O2) and hydroxyl radical (·OH), the production rate of superoxide radicals (O 2 ·− ) and the activities of lipoxygenase and NADPH oxidase in radish seedlings indicating the induction of oxidative stress. However, Zn-mediated enhancement in indices of oxidative stress was considerably decreased by EBR treatment. EBR application enhanced the activities of catalase, superoxide dismutase, guaiacol peroxidase, glutathione peroxidase, and peroxidase in radish seedlings under Zn stress. EBR treatment reduced the activity of ascorbic acid oxidase in Zn stressed seedlings. Further, EBR application also enhanced the free proline and phenol levels under Zn stress. From the results obtained in this study, it can be inferred that EBR application alleviated oxidative damage caused by over production of ROS through the up regulation of antioxidative capacity in Zn stressed radish seedlings.
Starting Page	249
Ending Page	259
Page Count	11
File Format	PDF
ISSN	01676903
Journal	Plant Growth Regulation
Volume Number	68
Issue Number	2
e-ISSN	15735087
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-05-11
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antixoidative system 24-Epibrassinolide Lipid peroxidation Protein carbonyls ROS Zinc stress Plant Anatomy/Development Plant Physiology Plant Sciences Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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