Hunupolagama D M, Chandrasekharan N V, Wijesundera W S S, Kathriarachchi H S, Fernando T H P S, Wijesundera R L C
Department of Plant Sciences, University of Colombo, Colombo, 0003, Sri Lanka.
Department of Chemistry, University of Colombo, Colombo, 0003, Sri Lanka.
Curr Microbiol. 2017 Jun;74(6):747-756. doi: 10.1007/s00284-017-1238-6. Epub 2017 Apr 5.
Colletotrichum is an important fungal genus with great diversity, which causes anthracnose of a variety of crop plants including rubber trees. Colletotrichum acutatum and Colletotrichum gloeosporioides have been identified as the major causative agents of Colletotrichum leaf disease of rubber trees in Sri Lanka based on morphology, pathogenicity, and the analysis of internally transcribed spacer sequences of the nuclear ribosomal DNA. This study has been conducted to investigate the members of the C. acutatum species complex causing rubber leaf disease using a morphological and multi gene approach. For the first time in Sri Lanka, Colletotrichum simmondsii, Colletotrichum laticiphilum, Colletotrichum nymphaeae, and Colletotrichum citri have been identified as causative agents of Colletotrichum leaf disease in addition to C. acutatum s. str. Among them, C. simmondsii has been recognized as the major causative agent.
炭疽菌属是一个具有高度多样性的重要真菌属，它会引发包括橡胶树在内的多种农作物的炭疽病。基于形态学、致病性以及核糖体DNA内部转录间隔区序列分析，尖孢炭疽菌和胶孢炭疽菌已被确定为斯里兰卡橡胶树炭疽叶病的主要致病因子。本研究采用形态学和多基因方法，对引起橡胶叶病的尖孢炭疽菌种复合体成员展开调查。在斯里兰卡，除尖孢炭疽菌指名亚种外，西蒙兹炭疽菌、嗜橡胶炭疽菌、睡莲炭疽菌和柑橘炭疽菌首次被鉴定为炭疽叶病的致病因子。其中，西蒙兹炭疽菌被认为是主要致病因子。
