热带作物学报2013，Vol.34Issue(1)：111-116,6.
不同香蕉品种多聚半乳糖醛酸酶抑制蛋白活性的比较
Comparison of the Activity of Polygalacturonase Inhibiting Proteins in Different Banana Varieties
摘要
Abstract
Polygalacturonase inhibiting proteins (PGIP), containing rich leucine with repeated region, can inhibit the activity of a variety of fungal Polygalacturonases (PG), and is considered as a kind of important factor in plant resistance against fungal infection. In this study, we used several banana varieties as the research materials to detect their PGIP activities to inhibit PGs produced by race 4 of Fusarium oxysporum f.sp. cubense (Foc4), the severe disease pathogen of banana fusarium wilt. Those banana varieties were concerned as resistant varieties to the pathogen and with different cell genotypes, including Musa AAA, Musa ABB, Musa ABB, Musa AA and Musa AAAB. The results showed that PGIP from Dongguandajiao (Musa ABB) inhibitted PGs of Foc4 with the highest activity among these banana varieties. By comparing the PGIP activities in roots, pseudo-stems and leaves of Dongguandajiao, PGIP from pseudo-stem was found with the highest PGIP activity. The study also found that the PGIP activity could be induced by Foc4 inoculation, and PGIP activity was higher in young seedlings than that in older ones.关键词
植物多聚半乳糖醛酸酶抑制蛋白/多聚半乳糖醛酸酶/香蕉枯萎病菌Key words
Polygalacturonase inhibiting proteins/Polygalacturonase/Fusarium oxysporum f.sp. Cubense分类
农业科技引用本文复制引用
刘昆昂,王振中..不同香蕉品种多聚半乳糖醛酸酶抑制蛋白活性的比较[J].热带作物学报,2013,34(1):111-116,6.基金项目
国家自然科学基金项目(No.30971888) （No.30971888）
公益性行业(农业)科研专项(No.200903049). （农业）
