检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《植物保护学报》2015年第3期390-395,共6页Journal of Plant Protection
基 金:中央高校基本科研业务费专项资金(XDJK2010B012);中国烟草总公司重庆市公司科研项目(NY20101201070001)
摘 要:为明确供体与受体植株间菌丝桥传递抗病信号对受体植株生长以及抗病性相关酶活性的影响,利用丛枝菌根真菌在供体与受体烟苗植株间建立菌根菌丝桥,对供体植株接种青枯菌的方法进行研究。结果表明:在供体烟苗接种丛枝菌根真菌条件下,再接种青枯菌,比只有菌丝连接的受体烟苗叶片内的过氧化物酶(peroxidase,POD)、多酚氧化酶(polyphenol oxidase,PPO)、苯丙氨酸解氨酶(phenylalanine ammonialyas,PAL)的活性分别提高了21%、29%和14%,地上部干重和植株磷含量也有相同的趋势;而在不接种丛枝菌根真菌条件下,供体烟苗接种青枯菌与否对酶的活性、植株干重及氮、磷含量均无显著影响。表明供体烟苗产生的抗病信号可以通过菌丝桥传递给受体烟苗,增强受体烟苗的抗病性。To determine whether the transformation of common mycorrhizal networks (CMN) between the "donor" and "receiver" plant roots can improve the disease-resistance of donor plants,tobacco (Nicotiana tabacum) plants were inoculated with arbuscular mycorrhizal fungus (AMF) Glomus mosseae to establish CMN between " donor" and " receiver" plants and then inoculated the donor plants with Ralstonia solanacearum,the causal agent of tobacco green wilting disease.The results showed that the activities of phenylalanine ammonialyas,polyphenol oxidase,and peroxidase in the "receiver" plants connected with the donor plants by CMN increased 21%,29%,and 14%,respectively,when inoculated with R.solanacearum compared with the control,and the same to shoot dry weight and phosphorus concentration.But the effect of inoculation with R.solanacearum on the enzyme was not significant when CMN was not present.These findings indicated that the disease resistance signals produced by the pathogen-induced donor plant could be transferred to the receiver plant roots through CMN.
分 类 号:S432.2[农业科学—植物病理学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:3.16.161.16