Andjic Vera, Barber Paul A, Carnegie Angus J, Hardy Giles St J, Wingfield Michael J, Burgess Treena I
School of Biological Sciences and Biotechnology, Murdoch University, Murdoch 6150, Australia.
Mycol Res. 2007 Oct;111(Pt 10):1184-98. doi: 10.1016/j.mycres.2007.07.003. Epub 2007 Jul 26.
Species of Phaeophleospora are anamorphs of Mycosphaerella and they include some of the most serious foliar pathogens of Eucalyptus spp. grown in plantations worldwide. Pathogens assigned to this genus and occurring on Eucalyptus spp. were previously treated in Kirramyces and they are also phylogenetically closely related to other anamorphs of Mycosphaerella residing in the genus Colletogloeopsis. The primary aim of this study was to consider the appropriate taxonomic placement of these species. To achieve this goal, morphological characteristics and DNA sequence data from the ITS and translation EF1-alpha gene regions were used to compare the type species P. eugeniae, Phaeophleospora spp. and Colletogloeopsis spp. occurring on eucalypts, using ex-type cultures and herbarium specimens. Phylogenetic data and morphological comparisons supported the separation of P. eugeniae from Phaeophleospora species occurring on eucalypts. The name Phaeophleospora is retained for P. eugeniae and the name Kirramyces is resurrected for the species occurring on eucalypts (genera Eucalyptus, Corymbia, and Angophora). Sequence data from the type specimens of two previously described species of Kirramyces, K. lilianiae and K. delegatensis, show they reside in a clade with other Kirramyces spp. Morphological and DNA sequence comparisons also showed that there is considerable overlap between species of Phaeophleospora and Colletogloeopsis from eucalypts. Based on these findings, Colletogloeopsis is reduced to synonymy with the older Kirramyces and the description of Kirramyces is emended to include species with aseptate, as well as multiseptate, conidia produced in acervuli or pycnidia. Two new species of Kirramyces, K. angophorae and K. corymbiae, are also described.
褐盘孢属物种是球腔菌属的无性型，其中包括一些全球人工林中生长的桉属植物最严重的叶部病原菌。归属于该属且寄生于桉属植物上的病原菌，以前被归在基氏盘菌属中，并且在系统发育上它们也与球腔菌属中其他球腔菌属无性型密切相关。本研究的主要目的是考虑这些物种合适的分类地位。为实现这一目标，利用来自ITS和翻译延伸因子1-α基因区域的形态特征和DNA序列数据，使用模式菌株培养物和标本馆标本，对寄生于桉树上的模式种尤金褐盘孢、褐盘孢属物种和球腔盘孢属物种进行比较。系统发育数据和形态学比较支持将尤金褐盘孢与寄生于桉树上的褐盘孢属物种区分开来。尤金褐盘孢保留褐盘孢属的名称，而寄生于桉属植物（桉属、伞房桉属和杯果木属）上的物种重新启用基氏盘菌属的名称。来自两个先前描述的基氏盘菌属物种——李氏基氏盘菌和德氏基氏盘菌模式标本的序列数据表明，它们与其他基氏盘菌属物种位于一个进化枝中。形态学和DNA序列比较还表明，寄生于桉树上的褐盘孢属和球腔盘孢属物种之间存在相当大的重叠。基于这些发现，球腔盘孢属被归为较早的基氏盘菌属的异名，并且对基氏盘菌属的描述进行了修订，以包括在分生孢子盘或分生孢子器中产生的无隔以及多隔分生孢子的物种。还描述了两个新的基氏盘菌属物种——杯果木基氏盘菌和伞房桉基氏盘菌。
