Morphological and phylogenetic studies of Cytospora (Valsaceae, Diaporthales) isolates from Chinese scholar tree, with description of a new species
Morphological and phylogenetic studies of Cytospora (Valsaceae, Diaporthales) isolates from Chinese scholar tree, with description of a new species
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中国槐树中分离的细胞孢子菌（缬草科、Diaporthales）的形态学和系统发育研究，并描述了一个新种
DOI：
10.1016/j.myc.2013.10.001
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发表时间：
2014-07-01
期刊：
影响因子：
1.4
通讯作者：
Tian, Cheng-Ming
中科院分区：
文献类型：
--
作者：
Fan, Xin-Lei;Liang, Ying-Mei;Tian, Cheng-Ming
胞孢菌属（Cytospora）是与多种植物溃疡病相关的最严重和分布最广的病原菌。在这项研究中，三个物种，即，槐生胞孢（Cytospora sophoricola）、C. chrysosperma和C.根据形态特征和系统发育分析，对中国槐属植物中的5种槐属植物进行了描述和图解。槐生胞孢菌具有较大的孢盘、多个气孔、囊状多室和特殊的培养特征，突出的子实体。最大简约法和最大似然法分析表明，该菌与胞孢菌属的已知种均不聚簇，因此将其描述为一新种。槐胞孢菌（Cytospora sophora）是槐属植物中的一个已知种，本文根据新的分离物和观察结果对其进行了重新描述。另一种被鉴定为C. chrysosperma，这是首次在槐属植物上报道，因此蝶形花科是C.金籽植物。讨论了这些种与相关类群的形态学亲缘关系，并根据其ITS区序列分析了它们与胞孢属其他真菌的系统发育关系。(C)2013年日本真菌学会。由Elsevier B出版。V.保留所有权利。
Cytospora species are the most serious and widespread pathogens associated with canker disease on multiple plants. In this study, three species, i.e., Cytospora sophoricola, C. chrysosperma, and C. sophorae, which were isolated from Sophora in China, are described and illustrated based on their morphological characteristics and phylogenetic analyses. Cytospora sophoricola was distinguished clearly by its larger disc, multiple ostioles, cystic and multiple locules, and specific cultural characteristics, i.e., protruding fruiting bodies. Maximum parsimony and maximum likelihood analysis showed that it did not cluster with any known species of Cytospora, so it is described as a new species. Cytospora sophorae is a previously reported species from Sophora, which is redescribed based on new isolates and additional observations. Another species was identified as C. chrysosperma, which is reported for the first time on Sophora, so Papilionaceae is shown to be a new host family for C. chrysosperma. The morphological affinities of these species with related taxa are discussed, while the phylogenetic relationships of these species with other fungus in the genus Cytospora were elucidated based on their internal transcribed spacer (ITS) rRNA region sequences. (C) 2013 The Mycological Society of Japan. Published by Elsevier B. V. All rights reserved.