Multigene phylogeny reveals new lineage for Stachybotrys chartarum, the indoor air fungus
Multigene phylogeny reveals new lineage for Stachybotrys chartarum, the indoor air fungus
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DOI：
10.1017/s0953756204000607
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发表时间：
2004-08-01
影响因子：
--
通讯作者：
Spatafora, JW
中科院分区：
文献类型：
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作者：
Castlebury, LA;Rossman, AY;Spatafora, JW
Chartarum是一种无性繁殖的真菌，通常从土壤和垃圾中分离出来，也已知在室内环境中发生，并被认为是人类严重疾病甚至死亡的原因。尽管它的经济重要性，更高层次的系统发育关系的水苏属尚未确定，也没有一个性别状态的S。Chartarum报道。从四个核基因和线粒体基因的DNA序列进行了分析，以确定顺序和家庭的真子囊菌门内的水葫芦。这些数据表明，包括S. chartarum，S. albipes，其中有性状态Melanopsamma pomiformis被报道，Myrothecium的物种，和另外两个热带hypocrealean物种在Hypocreales内形成以前未知的单系谱系。这些结果表明，葡萄穗霉属和漆斑菌属与其他肉座菌属真菌关系密切并具有共同特征。此外，S. chartarum在自然界中可能具有性状态，其由小的、黑色的、肉质的包皮组成，类似于Melanopsamma。
Stachybotrys chartarum is an asexually reproducing fungus commonly isolated from soil and litter that is also known to occur in indoor environments and is implicated as the cause of serious illness and even death in humans. Despite its economic importance, higher level phylogenetic relationships of Stachybotrys have not been determined nor has a sexual state for S. chartarum been reported. DNA sequences from four nuclear and one mitochondrial gene were analyzed to determine the ordinal and familial placement of Stachybotrys within the Euascomycota. These data reveal that species of Stachybotrys including S. chartarum, S. albipes, for which the sexual state Melanopsamma pomiformis is reported, species of Myrothecium, and two other tropical hypocrealean species form a previously unknown monophyletic lineage within the Hypocreales. These results suggest that Stachybotrys and Myrothecium are closely related and share characteristics with other hypocrealean fungi. In addition, S. chartarum may have a sexual state in nature that consists of small, black, fleshy perithecia similar to Melanopsamma.