新疆农业科学2017，Vol.54Issue(11)：2054-2059,6.DOI:10.6048/j.issn.1001-4330.2017.11.012
吐鲁番地区哈密瓜品种对细菌性果斑病抗性研究
A Preliminary Study on Resistance of Hami Melon Varieties to Acidovorax avenae subsp.citrulli in Turpan Area
摘要
Abstract
[Objective] This project aims to provide the theoretical basis for the prevention and breeding of bacterial fruit blotch of Hami melon through the study on the resistance to Acidovorax avenae subsp.Citrulli in Turpan,[Method] 10 Hami melon varieties planted in Turpan area were used as materials,and the disease index of resistance to Acidovorax avenae subsp.citrulli was investigated by artificial inoculation at the seedling stage.At the same time,the stomatal and leaf hair number of seedlings leaf surface between different resistant cultivars were compared and the defense enzymes PPO and POD in seedling leaves were measured.[Result] Among the 10 cultivars,there were no immune varieties,Xizhoumi No.25 and Imperial Concubine showed the middle resistance,Xinmi No.36 showed a high susceptibility,and the other seven varieties showed a middle susceptibility;There were no significant differences in leaf hair number between susceptible varieties Xinmi No.36 and middle susceptible varieties 9818 (green leaf trichomes).Leaf hair number of the middle resistance Xizhoumi No.25 was 1.68 times that of Xinmi No.36.The number of stomata of Xizhoumi No.25 was 1.42 times that of 9818 (green leaf trichomes) and 1.91 times that of Xinmi No.36.The PPO enzyme activities of different resistant varieties showed susceptible varieties ＞ middle susceptible varieties ＞ resistant varieties,POD enzyme activity showed susceptible varieties ＞ middle susceptible varieties ＞ resistant varieties.[Conclusion] Different Hami melon varieties have significant difference resistance to Acidovorax avenae subsp.Citrulli,and no immune and high resistant varieties among them have been found.Xizhoumi No.25 and Imperial Concubine show middle resistance,Xinmi No.36 is a high susceptible variety,other varieties are middle and high susceptible varieties.There was a positive correlation between disease resistance and the number of leaf hair and stomata,showing positive correlation trend.The PPO enzyme showed a downward trend,which was negatively related to disease resistance,and POD enzyme showed an upward trend,which was negatively related to disease resistance of varieties.关键词
哈密瓜/细菌性果斑病/抗性Key words
Hami melon/bacterial fruit blotch/resistance分类
农业科技引用本文复制引用
毛亮,吉艳玲,张娟,王宣仓,潘卫萍,张以和,王晓东..吐鲁番地区哈密瓜品种对细菌性果斑病抗性研究[J].新疆农业科学,2017,54(11):2054-2059,6.基金项目
The National Natural Science Foundation of China "Study on Pichia anomala 0732-1 metabolic product acetic acid to the mechanism of preventing and controlling bacterial fruit blotch of Hami melon"(31460485) and Science and Autonomous region youth science and technology innovation talent training project "Grassroots young scientific and technological personnel training project" (qn2015jc073) （31460485）
国家自然科学基金项目“Pichia anomala 0732-1代谢产物乙酸在生防哈密瓜细菌性果斑病中的作用机制研究”(31460485) （31460485）
自治区青年科技创新人才培养工程“基层青年科技人才培养项目”(qn2015jc073) （qn2015jc073）
