Acta Agrestia Sinica

›› 2003, Vol. 11 ›› Issue (3): 197-204.DOI: 10.11733/j.issn.1007-0435.2003.03.002

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Responses of Major Stylosanthes Germplasms to the Collectotrichum gloeosporioides (Penz.) Sacc. Infection in China

JIANG Chang-shun1,2, ZHOU Dong-mei2, ZHANG Yi-zheng1   

  1. 1. College of Life Science, Sichuan University, Chengdu, Sichuan Province 610064, China;
    2. Institute of Tropical Field Crops and Animal Husbandry, Chinese Academy of Tropical Agricultural Science, Danzhou, Hainan Province 571737, China
  • Received:2002-11-08 Revised:2003-03-01 Online:2003-08-15 Published:2003-08-15

柱花草种质对炭疽病原菌的反应

蒋昌顺1,2, 邹冬梅2, 张义正1   

  1. 1. 四川大学生命科学学院, 成都, 610064;
    2. 中国热带农业科学院农牧研究所, 海南儋州, 571737
  • 作者简介:蒋昌顺(1967- ),男,广西全州人,副研究员,博士,主要从事热带牧草育种研究及牧草与病原菌相互作用的分子生物学研究,已发表论文35篇,选育出热带牧草新品种5个,获省部级科技进步奖5项.Email:changshunj@21cn.com
  • 基金资助:
    国家自然科学基金项目(30160046);中国热带农业科学院科研基金

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Abstract: Using inoculated potted Stylosanthes plants and their detached leaves,a study of the response of 45 Stylosanthes germ plasms to 2 strains of China endemic Collectotrichum gloeosporioides(Penz.) CATAS292 (Type A) and CATAS100 (Type B) has been undertaken.The result shows that 37.8% of the inoculated plants are resistant to CATAS292,and 31.1% of those are resistant to CATAS100,while 64.4% of the 45 Stylosanthes germ plasma are infectious to both strains of Collectotrichum gloeosprorioides. Though an inoculated Stylosanthes plant may resistant to the disease,its detached leaves are not necessarily so.Whether a Stylosanthes plant contracts or resists the disease is determined by its number of leaves infected and fallen,the number of sclerotia on the plant, and the extent the disease spots spread.

Key words: Stylosanthes, Collectotrichum gloeosporioides, Resistance

摘要： 通过盆栽植株接种和离体叶片接种试验,研究45份柱花草种质对中国两种类型炭疽病原菌生理小种CATAS292(A型)和CATAS100(B型)的反应。结果表明,37.8%的接种植株对A型生理小种有抗性,31.1%的对B型有抗性,64.4%的对两种类型炭疽病原菌均易感病。柱花草植株抗病,其离体叶片不一定抗病。感病与抗病柱花草的差异主要表现在其感染和脱落叶片数、菌核数量及病斑扩展方面。

关键词: 柱花草, 炭疽病原菌, 抗性

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