热带作物学报2018，Vol.39Issue(2)：237-245,9.DOI:10.3969/j.issn.1000-2561.2018.02.005
低温胁迫对嫁接苦瓜幼苗抗氧化系统的影响
Effects of Low Temperature Stress on Antioxidant System of Grafted Bitter Gourd Seedlings
摘要
Abstract
In order to study the effects of low temperature stress on the growth and active oxygen metabolism of grafted bitter gourd seedlings,Chui-liu 2 bitter gourd scions were grafted to Bitter Anvil 2 (yellow seed pumpkin)and Zhongyuan co-prosperity (white seed pumpkin) rootstocks The results showed that the cold injury index and the antioxidant system-related indexes of the grafted seedlings and the self-rooted seedlings were significantly affected in the low temperature environment.The chilling injury index of bitter gourd treated by low temperature was the highest,which indicated that grafting could effectively improve the tolerability of bitter to low temperature.But the MDA,H2O2,and were the lowest than those of the self-rooted seedlings.The results showed that the content of antioxidant enzymes and antioxidant activities were significantly higher than those of self-rooted seedlings under low temperature stress.Studies showed that under low temperature,the antioxidant enzymes and antioxidants in the grafted seedlings of Balsam pear increased tomaintain the stability of AsA-GSH circulatory system,and the accumulation of H2O2,MDA and the increase ofproduction rate reduced to alleviate the damage of reactive oxygen species to bitter gourd seedlings,and to protect the stability of cell membrane,and enhance the ability to resist low temperature.关键词
低温胁迫/嫁接/苦瓜/抗氧化系统Key words
low temperature stress/grafting/bitter gourd/antioxidant system分类
农业科技引用本文复制引用
王佳楠,商桑,田丽波,周萌萌,潘琼玉,邹凯茜,杜卓涛..低温胁迫对嫁接苦瓜幼苗抗氧化系统的影响[J].热带作物学报,2018,39(2):237-245,9.基金项目
国家自然科学基金项目(No.31460517、No.31660570). （No.31460517、No.31660570）
