Proline and Glycinebetaine Confer Cadmium Tolerance on Tobacco Bright Yellow-2 Cells by Increasing Ascorbate-Glutathione Cycle Enzyme Activities

被引：33
|
作者：
Islam, Mohammad Muzahidul [1 ]
Hoque, Md. Anamul [1 ]
Okuma, Eiji [1 ]
Jannat, Rayhanur [1 ]
Banu, Mst. Nasrin Akhter [1 ]
Jahan, Md. Sarwar [1 ]
Nakamura, Yoshimasa [1 ]
Murata, Yoshiyuki [1 ]
机构：
[1] Okayama Univ, Grad Sch Nat Sci & Technol, Okayama 7008530, Japan
来源：
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY | 2009年 / 73卷 / 10期
关键词：
proline; glycinebetaine; cadmium stress; ascorbate-glutathione cycle; reactive oxygen species; EXOGENOUS PROLINE; ANTIOXIDANT DEFENSE; SALINE CONDITIONS; OXIDATIVE STRESS; PLASMA-MEMBRANE; CULTURED-CELLS; SALT STRESS; K+ CHANNELS; ADAPTATION; SUSPENSION;
D O I：
10.1271/bbb.90305
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Cadmium (Cd) stress significantly decreased membrane integrity and impaired the ascorbate (ASC)-glutathione (GSH) cycle in tobacco Bright Yellow-2 cells. Exogenous application of proline and glycinebetaine (betaine) significantly restored the membrane integrity and increased the activities of ASC-GSH cycle enzymes under Cd stress without maintenance of the rich ASC or GSH pools. Moreover, proline offered more efficient protection against Cd stress than betaine.
引用
收藏
页码：2320 / 2323
页数：4
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