中国水稻科学
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  2007, Vol. 21 Issue (5): 525-529     DOI:
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Protective Roles of Brassinolide in Rice Seedlings under Heat Stress
CAO Yun-ying , ZHAO Hua
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Abstract Two indica rice(Oryza sativa L.) materials,Xieqingzao B(heat-sensitive) and 082(heat-tolerant),were used to study the role of brassinolide(BR) in protection of rice seedlings from heat stress.Young seedlings were subjected to higher temperature and sprayed with 0.005 mg/L of BR.Analysis was conducted on the contents of chlorophyll,protein,malondialdehyde(MDA),electrolyte leakage,the activities of peroxidase(POD) and superoxide dismutase(SOD) and their isozymes expression levels in leaves.Under the heat stress treatment,application of BR significantly increased the contents of chlorophyll and protein,the activities of POD and SOD,and reduced the level of MDA and the leakage of electrolyte in the leaves of the heat-sensitive material Xieqingzao B,whereas BR had less effect on those of the heat-tolerant material 082,relatively.The BR treatment enhanced the expression level of POD isozymes in the leaves of both materials.Under the heat stress and BR treatment,the expression of four SOD isozymes were reduced in 082,but the expression of two SOD isozymes A and B were increased in Xieqingzao B.This suggested that BR plays an important role in protection rice seedlings from heat stress through enhancing the activities or expression levels of protective enzymes in the leaves.The materials with various heat-tolerance might differ in the mechanism of response to heat stress with BR application.
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CAO Yun-ying
ZHAO Hua
Key wordsbrassinolide   rice seedlings   heat stress   antioxidase   membrane lipid peroxidation     
Received: 1900-01-01;
Cite this article:   
CAO Yun-ying ,ZHAO Hua. Protective Roles of Brassinolide in Rice Seedlings under Heat Stress [J]. , 2007, 21(5): 525-529 .
 
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[J]. , 2011, 25(1): 99-102 .
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[8] SUN Jun-wei,YANG Yong,HUANG Zong-an,JIN Song-heng,JIANG De-an*. Reason for Photosynthetic Declination in Rice from Water Stress Induced by Polyethylene Glycol(PEG)[J]. , 2004, 18(6): 539-543 .
[9] SHAO Guo-sheng ,MUHAMMAD Jaffar Hassan ,ZHANG Xiu-fu ,ZHANG Guo-ping . Effects of Cadmium Stress on Plant Growth and Antioxidative Enzyme System in Different Rice Genotypes[J]. , 2004, 18(3): 239-244 .
[10] CAI Miao-zhen,LIN Xian-yong,LUO An-cheng,ZHANG Yong-song. Amelioration of Fe2+ Toxicity by Phosphorous in Rice[J]. , 2002, 16(3): 247-251 .
[11] Liang Yuzhou,He Ruotian. Protective Effect of Choline Chloride on Rice under Chilling Stress at Seedling Stage[J]. , 1999, 13(1): 31-35 .
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