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几丁质酶与植物的抗病性
引用本文:蒋选利,李振岐,康振生,闫海林.几丁质酶与植物的抗病性[J].西北农业学报,2002,11(3):71-75.
作者姓名:蒋选利  李振岐  康振生  闫海林
作者单位:1. 西北农林科技大学植物保护学院,陕西杨凌,712100
2. 陕西省种业集团,陕西西安,710016
基金项目:高等学校博士点基金(99007003)
摘    要:综述了几丁质酶在植物抗病性方面的研究进展。几丁质酶在体外抑制病原菌的生长;病原物的侵染诱导植物几丁质酶活性升高和产生新的几丁质酶同工酶,这些高活性的几丁质酶或特异性的同工酶提高了植物的抗病性;构成组成型表达几丁质酶基因的转基因植物,可有效地抵抗病原物的侵袭。由于几丁质酶和病原菌的多样性及其在植物体内分布的不同,使得各种几丁质酶在植物抗病性中的作用也不尽一样。

关 键 词:植物  抗病性  几丁质酶  病原菌  抑菌作用  转基因
文章编号:1004-1389(2002)03-0071-05
收稿时间:2001/11/3 0:00:00
修稿时间:2001年11月3日

Chitinase and Plant Disease Resistance
JIANG Xuan-li,LI Zhen-qi,KANG Zhen-sheng and YAN Hai-lin.Chitinase and Plant Disease Resistance[J].Acta Agriculturae Boreali-occidentalis Sinica,2002,11(3):71-75.
Authors:JIANG Xuan-li  LI Zhen-qi  KANG Zhen-sheng and YAN Hai-lin
Institution:College of Plant Protection, Northwest Sci-Tech University of Agriculture and Forestry, Yangling Shaanxi 712100, China;College of Plant Protection, Northwest Sci-Tech University of Agriculture and Forestry, Yangling Shaanxi 712100, China;College of Plant Protection, Northwest Sci-Tech University of Agriculture and Forestry, Yangling Shaanxi 712100, China;Seeds Group of Shaanxi Province, Xi''an Shaanxi 710016, China
Abstract:The recent progress of research on chitinase in plant disease resistance is reviewed in this paper. Purified chitinase from the infected plants inhibits phytopathogen in vitro. The pathogens infection induced the chitinase activity increase and the chitinase isozymes change. The high chitinase activity or specific chitinase isozymes have enhanced disease resistance of plant The constitutive expression of chitinase genes of the transgenic plant can be effective against pathogens infection. Different chitinase plays a different role in disease resistance of variousplants because both various chitinases and phytopathogens are different distribution in infected plant.
Keywords:Chitinase  Phytopathogen  Disease resistance
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