Endophytic Colletotrichum species from Dendrobium spp. in China and Northern Thailand
Endophytic Colletotrichum species from Dendrobium spp. in China and Northern Thailand
复制标题
来自石斛兰属的内生炭疽菌属物种。
DOI：
10.3897/mycokeys.43.25081
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发表时间：
2018-12-04
期刊：
影响因子：
3.3
通讯作者：
Kang, Jichuan
中科院分区：
文献类型：
--
作者：
Ma, Xiaoya;Nontachaiyapoom, Sureeporn;Kang, Jichuan
炭疽菌通常作为病原菌、内生菌和偶尔的腐殖菌存在于许多植物宿主中。从石斛属3个种（D. cariniferum、D. catenatum和D. harveyanum）和3个未知种中分离到22株炭素菌。利用ITS、GAPDH、ACT和6-微管蛋白序列数据的形态特征和系统发育分析对该分类群进行了鉴定。这是首次利用上述方法对兰石斛内生真菌进行鉴定。本文将已知种Colletotrichum boninense、C. camelliae-japonicae、C. fructicola、C. jiangxiense和C. orchidophilum鉴定为石斛属真菌内生菌，并对新种C. catiniferi、C. chiangraiense、C. doitungense、C. parallelophorum和C. watphraense进行了介绍。一种菌株被记录为未识别的物种。玉米粉琼脂被推荐为炭疽菌良好的产孢培养基。本文首次报道了与石斛（Dendrobium cariniferum）和石斛（d.h erveyanum）相关的真菌内生菌。炭疽菌camelliae。泰国新记录寄主为日本科（japonicae）、江仙花科（C. jiangxiense）和兰科（C. orchidophilum）。
Species of Colletotrichum are commonly found in many plant hosts as pathogens, endophytes and occasionally saprobes. Twenty-two Colletotrichum strains were isolated from three Dendrobium species - D. cariniferum, D. catenatum and D. harveyanum, as well as three unidentified species. The taxa were identified using morphological characterisation and phylogenetic analyses of ITS, GAPDH, ACT and 6-tubulin sequence data. This is the first time to identify endophytic fungi from Dendrobium orchids using the above method. The known species, Colletotrichum boninense, C. camelliae-japonicae, C. fructicola, C. jiangxiense and C. orchidophilum were identified as fungal endophytes of Dendrobium spp., along with the new species, C. catiniferi, C. chiangraiense, C. doitungense, C. parallelophorum and C. watphraense, which are introduced in this paper. One strain is recorded as an unidentified species. Corn meal agar is recommended as a good sporulation medium for Colletotrichum species. This is the first report of fungal endophytes associated with Dendrobium cariniferum and D. harveyanum. Colletotrichum camelliae.japonicae, C. jiangxiense, and C. orchidophilum are new host records for Thailand.