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首页> 外文期刊>Mycologia >SPECIES OF MYCOSPHAERELLA AND THEIR ANAMORPHS ASSOCIATED WITH LEAF BLOTCH DISEASE OF EUCALYPTUS IN SOUTH AFRICA
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SPECIES OF MYCOSPHAERELLA AND THEIR ANAMORPHS ASSOCIATED WITH LEAF BLOTCH DISEASE OF EUCALYPTUS IN SOUTH AFRICA

机译：南非鱼鳞虫的支原体及其厌食菌的种类

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摘要

Mycosphaerella leaf blotch is a serious disease of Eucalyptus nitens and also occurs on several other Eucalyptus spp. in South Africa. The aim of the present study was to characterize the variation observed among South African Mycosphaerella strains obtained from eucalypts. Earlier studies had suggested that only one species, M. molleriana, occurred on eucalypts in South Africa. Contrary to these reports M. molleriana was not found, but five new species of Mycosphaerella were collected and are described here. The name M. juvenis is proposed for the species commonly associated with leaf spots on juvenile leaves of E. nitens. Because its cercosporoid anamorph state could not be suitably accommodated in Pseudocercospora, a new genus Uwebraunia is introduced for it, and also for the anamorphs of two other new species, M. ellipsoidea and M. lateralis, occurring on E. cladocalyx and E. grandis x saligna, respectively. Mycosphaerella crystallina with a Pseudocercospora anamorph is described as a new species from leaves of E. bicostata. A Pseudocercospora sp. associated with spermogonia of an undescribed Mycosphaerella sp., is compared with known species of the genus from eucalypts, and described as P. epispermogoniana. Mycosphaerella marksii, recently described from eucalypts in Australia, is also reported from South Africa for the first time. A key to the species of Mycosphaerella presently known from Eucalyptus is also provided. [References: 31]
机译：霉菌叶斑是桉树的一种严重疾病，在其他几种桉树上也有发生。在南非。本研究的目的是表征从桉树中获得的南非霉菌菌株之间观察到的变异。较早的研究表明，南非的桉树上只出现一种毛霉菌。与这些报告相反，未发现莫勒氏菌，但收集到了五种新的霉菌，并在此进行了描述。对于通常与ni。nitens幼叶上的叶斑相关的物种，建议使用M. juvenis。由于假尾孢菌不能适当地容纳其尾孢菌变态状态，因此为其引入了新的Uwebraunia属，并且还针对了出现在大叶桉和大芽孢杆菌上的另外两个新物种椭圆虫和侧枝变形虫。 x saligna。带有拟假单孢菌无形体的结晶小球藻被描述为来自双肋大肠杆菌叶的新物种。假单孢菌属某种。将与未描述的Myphasphaerella sp。的精子的精子相关联，与桉树属的已知种进行比较，并被描述为P. epispermogoniana。最近在澳大利亚的桉树中也描述了Markcosphaerella markii，也是南非首次报道。还提供了目前从桉树中已知的食球菌属物种的关键。 [参考：31]

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