林业科学2011，Vol.47Issue(10)：44-50,7.
AM真菌和紫穗槐苗互作早期宿主防御生理指标的响应特征
Response Characteristics of Physiological Defense Indexes of Host Plant at Early Stage of Arbuscular Mycorrhiza Development between Amorpha fruticosa and AM Fungi
摘要
Abstract
This article studied the response characteristics of protective enzymes and malondialdehyde (MDA) at the early stage of the development of arbuscular mycorrhizal between AM fungi and Amorpha fruticosa with a potting experiment in a greenhouse. The result showed that at the early stage of A. Fruticosa infected with AM fungi, protective enzymes (PPO and POD) of the root system were transiently activated, along with an accumulation of flavonoid (a kind of phytoalexin). The activities of protective enzymes and the flavonoid contents had greater increases in roots inoculated with Gl (Glomus intraradices) than GM (Glomus mosseae). Additionally, the contents of MDA decreased respectively 26. 6% and 25. 8% in CM- and GI- colonized plants in 25 d after the seed germination. With inactivation of the protective enzymes, contents of soluble protein and GlcN (Glucosamine) increased and some new proteins occurred, which indicated that the degradation of chitin and emergence of new proteins were potential mechanisms regulating the defense responses of host plants to develop mutually beneficial symbiosis.关键词
AM真菌/MDA/类黄酮/GlcNKey words
arbuscular mycorrhizal fungi/malondiadehyde/flavonoid/glucosamin分类
农业科技引用本文复制引用
宋鸽,宋福强..AM真菌和紫穗槐苗互作早期宿主防御生理指标的响应特征[J].林业科学,2011,47(10):44-50,7.基金项目
国家自然科学基金(31070576,30571493) （31070576,30571493）
黑龙江大学高层次人才支持计划项目(Hdtd2010-12). （Hdtd2010-12）
