Paper Title:
Role of ASC-GSH Metabolism in Trifolium Repens L
  Abstract

In order to elucidate the role of ascorbate-glutathione (ASC-GSH) cycle to drought stress, the activities of antioxidant enzymes and the levels of molecules involved in the ASC-GSH metabolism were studied in Trifolium repens seedlings subjected to polyethylene glycol (PEG)-induced water deficit. Compared to the control, the contents of ascorbate (ASC), dehydroascorbate (DHA) and glutathione disulfide (GSSG) increased in PEG-treated seedlings, whereas the glutathione (GSH) content kept constant during the drought period. Further more, the values of ASC/DHA and GSH/GSSG ratios decreased in the presence of PEG. Except for that of monodehydroascorbate reductase (MDHAR), the activities of ascorbate peroxidase (APX), dehydroascorbate reductase (DHAR) and glutathione reductase (GR) were upregulated during water deficit, and the increases of APX and DHAR activities were much higher than that of GR activity. These data indicated that fluctuations of the ASC-GSH metabolism resulted from PEG may have a positive effect on drought stress mitigation in T. repens, and the antioxidant protection in ASC-GSH cycle can be attributed mainly to ASC, APX and DHAR.

  Info
Periodical
Advanced Materials Research (Volumes 343-344)
Chapter
Session 3: Biology-Related Materials Research in Environmental Protection
Edited by
David Wang
Pages
815-819
DOI
10.4028/www.scientific.net/AMR.343-344.815
Citation
Y. B. Zhang, "Role of ASC-GSH Metabolism in Trifolium Repens L", Advanced Materials Research, Vols. 343-344, pp. 815-819, 2012
Online since
September 2011
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Pei Lian Wu, Li Dong Wang, Wei Dong Fei
Abstract:In the present study, MBOw/Al composites were fabricated using squeeze casting method. The interfacial reaction in the composite was...
643
Authors: Yusuke Hirota, Masaru Hakoda
Abstract:In our previous study, we discussed the possibility of differentiation activity measurement for rat mesenchymal stem cells (RMSC) by...
84
Authors: Yuan Hua Zhang, Xiao Ping She
Session 2: Materials for Biomedical Engineering Application
Abstract:Role of nitric oxide(NO) and hydrogen peroxide(H2O2) in eATP-inhibited reduction of in vitro pollen germination and...
347
Authors: Li Li Chen, Li Zhao, Mei Lan Yuan, Wei Su, Hua Liu
Chapter 6: Food Chemistry and Food Science
Abstract:The different factors of influencing viscosity of acid-soluble collagen (ASC) and pepsin-soluble collagen (PSC) from Amiurus nebulosus...
1723