J Integr Plant Biol. ›› 2009, Vol. 51 ›› Issue (10): 942-950.DOI: 10.1111/j.1744-7909.2009.00865.x

Special Issue: Abiotic Stresses

• Plant-environmental Interactions • Previous Articles     Next Articles

Different Responses of Plant Growth and Antioxidant System to the Combination of Cadmium and Heat Stress in Transgenic and Non-transgenic Rice

Feng-Yun Zhao1*, Wen Liu1 and Shi-Yong Zhang1   

  1. 1 College of Life Sciences, Shandong University of Technology, Zibo 255049, China
    2 Institute of Rice, Jining 272077, China )
  • Received:2009-02-15 Accepted:2009-06-29 Published:2009-09-25
  • About author:
    *Author for correspondence Tel(Fax):+ 86 533 278 0271; E-mail: zfy1226@126.com

Abstract:

A comparative study of just cadmium (Cd) or heat and their combination treatments on some physiological parameters and the antioxidant systems in transgenic rice (Oryza sativa L. cv. Zhonghua No.11) carrying glutathione-S-transferase (GST, EC. 2.5.1.18) and catalase1 (CAT1, EC. 1.11.1.6) and non-transgenics was conducted. The results revealed improved resistance in the transgenics to Cd and the combined Cd and heat stress than non-transgenics. Data showed that the activities of CAT, GST, superoxide dismutase (EC.1.15.1.1) and all components of the ascorbate-glutathione cycle measured in the stressed transgenics shoots are significantly different from those of non-transgenics. Results indicated that co-expression of GST and CAT1 had an important effect on the antioxidant system, in particular, the whole ascorbate-glutathione cycle. The less oxidative damage induced by Cd and the stress combination in the transgenics resulted not only from the GST and CAT1 transgene but also from the coordination of the whole ascorbate-glutathione cycle.
Zhao FY, Liu W, Zhang SY (2009). Different responses of plant growth and antioxidant system to the combination of cadmium and heat stress in transgenic and non-transgenic rice. J. Integr. Plant Biol. 51(10), 942–950.

Key words: ascorbate-glutathione cycle, catalase, combined cadmium and heat stress, glutathione-S-transferase, transgenic rice.

Editorial Office, Journal of Integrative Plant Biology, Institute of Botany, CAS
No. 20 Nanxincun, Xiangshan, Beijing 100093, China
Tel: +86 10 6283 6133 Fax: +86 10 8259 2636 E-mail: jipb@ibcas.ac.cn
Copyright © 2021 by the Institute of Botany, the Chinese Academy of Sciences
Online ISSN: 1744-7909 Print ISSN: 1672-9072 CN: 11-5067/Q
备案号:京ICP备16067583号-22