当前位置: 首页 > 文章 > 冠菌素对小麦几个抗寒生理指标的影响 麦类作物学报 2006,26 (6) 149-153
Position: Home > Articles > Effects of Coronatine on Chilling-resistant Physiological Indexes of Different Wheat Varieties Journal of Triticeae Crops 2006,26 (6) 149-153

冠菌素对小麦几个抗寒生理指标的影响

作  者:
齐付国;李建民;段留生;李召虎
单  位:
中国农业大学农学与生物技术学院
关键词:
小麦;冠菌素;抗寒性;可溶性糖;谷胱甘肽;相对生长速率;根冠比;叶绿素
摘  要:
为了研究冠菌素提高小麦抗寒性的效果和机理,用1μmol/L浓度的冠菌素对生长在20℃和4℃条件下的冬小麦和春小麦分别进行处理后,测定和分析了小麦相对生长速率、根冠比、叶绿素、可溶性糖和谷胱甘肽等一些与抗寒相关的生理指标的变化。结果表明,冠菌素在低温条件下可以使小麦根冠比和叶绿素含量增加,促进糖和谷胱甘肽的积累,降低膜透性,从而增强小麦的抗寒能力。
译  名:
Effects of Coronatine on Chilling-resistant Physiological Indexes of Different Wheat Varieties
作  者:
QI Fu-guo,LI Jian-min,DUAN Liu-sheng,LI Zhao-hu(College of Agronomy and Biotechnology,China Agricultural University,Beijing 100094,China)
关键词:
Coronatine;Wheat;Chilling resistance;Soluble sugar;Glutathione;RGR;Ratio of root by shoot;Chborophyll
摘  要:
The effects of coronatine(1 μmol/L) on chilling-resistance were studied in spring and winter wheat cultivars grown under control(20℃) and cold(4℃) conditions.The relative growth rates(RGR),root:shoot ratio,chlorophyll,sugar,glutathione and membrane permeability were examined.Exogenous coronatine caused increase of root:shoot ratio and chlorophyll.These results indicate that coronatine can increase freezing tolerance in spring and winter wheat cultivars.

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