香蕉穿孔线虫观赏植物种群对香蕉的致病性研究  

Pathogenicity of 6 Populations of Radopholus similis From Ornamentals to 4 Banana Cultivars

作　　者：秦丹[1,2] 谢辉[1] 裴艳艳[1] 徐春玲[1] 韩玉春[1] 黄春晓[1] 李云[1] 

机构地区：[1]华南农业大学资源环境学院植物线虫研究室/华南农业大学植物检疫线虫检测与防疫研究中心,广州510642 [2]安徽科技学院,安徽凤阳233100

出　　处：《中国农业科学》2009年第11期3898-3903,共6页Scientia Agricultura Sinica

基　　金：国家自然科学基金项目(30471163;30671366);农业部"948"项目(2006-G32);公益性行业(农业)科研专项项目(nyhyzx07-029);国家香蕉产业技术体系(nycytx-33)

摘　　要：【目的】为了明确香蕉穿孔线虫(Radopholus similis)观赏植物种群对香蕉(Musaspp.)的致病性。【方法】通过室内盆栽接种测试的方法,研究侵入中国的6个香蕉穿孔线虫观赏植物种群对大蕉、粉蕉、皇帝蕉和巴西蕉的幼苗的致病性。【结果】供试的6个香蕉穿孔线虫观赏植物种群都能明显侵染大蕉、粉蕉和皇帝蕉,并显著抑制大蕉、粉蕉和皇帝蕉的生长;只有2个种群对巴西蕉表现为弱致病,对其生长有一定的抑制。【结论】侵入中国的6个香蕉穿孔线虫观赏植物种群普遍对大蕉、粉蕉和皇帝蕉有明显的致病性,少数种群对巴西蕉有一定的致病作用。[ Objective ] The pathogenicity of 6 populations ofRadopholus similis from ornamental introduced into China were tested to seedlings of four banana cultivars. [ Method ] Pot inoculation was used in greenhouse tests. [ Result ] The six populations of R. similis tested obviously infected the roots of Musa paraolisiaca, Musa ABB Pisang Awak and Musa acuminata cv. Mas and reduced their plant growth. However only two populations of R. similis were weakly infected the roots of Musa AAA Giant Cavendish cv. Baxi. [ Conclusion ] The results demonstrated the significantly differences in pathogenicity of 6 populations of R. similis from omamantals to seedlings of different Musa spp. The pathogenicity of 6 populations of R. similis was significantly different to the same variety of bananas, and different varieties of bananas showed different susceptibility to the same population of R. similis.

关 键 词：香蕉穿孔线虫 观赏植物种群 香蕉 致病性 

分 类 号：S436.68[农业科学—农业昆虫与害虫防治]