高温对黄瓜幼苗生长、脯氨酸含量及SOD酶活性的影响  

Effects of heat strees on seedling growth? proline contents and SOD activity in cucumbers

作　　者：何晓明[1] 林毓娥[1] 陈清华[1] 邓江明[2] 

机构地区：[1]广东省农业科学院蔬菜研究所,广州510640 [2]广东教育学院,广州510631

出　　处：《上海交通大学学报（农业科学版）》2002年第1期30-33,共4页Journal of Shanghai Jiaotong University(Agricultural Science)

基　　金：九五国家科技攻关项目子专题 (96-0 0 2 -0 2 -2 2 -0 3 );广东省自然科学基金项目 (97413 5 )

摘　　要：研究了高温胁迫对耐热性不同的黄瓜品种幼苗生长及子叶电导率、脯氨酸含量和超氧物歧化酶活性的影响。结果表明 ,在高温胁迫下不耐热品种幼苗生长明显受阻 ,子叶相对电导率大幅度提高 ,而耐热品种幼苗生长未受到明显影响 ,子叶细胞膜稳定性较高。耐热品种在常温或高温下 。Effects of heat stress on seedling growth, proline content and SOD activity were studied in two cultivars with different adaptability to heat stress. The results showed that elongation of the radicele of heat sensitive cultivar were inhibited significantly by the high temperature, while the radicele of heat tolerant cultivar grow normally. Low membrane permeability, high proline content and high SOD activity were found in heat tolerant cultivar both in normal and high temperature.

关 键 词：黄瓜 高温胁迫 幼苗生长 脯氨酸含量 过氧物歧化酶 酶活性 

分 类 号：S642.201[农业科学—蔬菜学]