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Cercosporella and Ramularia

机译：Cercosporella和Ramularia

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Cercosporella and Ramularia (hyphomycetous anamorphs with relationship to Mycosphaerellaceae, Ascomycota) are difficult to distinguish based oil light. microscopic characteristics of conidiophores and conidia. Although both genera have been known for more than 120 y, new morphological characteristics were found by "simple" light and scanning electron microscopy now allowing an unambiguous differentiation between both genera. Newly discovered morphological characteristics of interaction structures and ultrastructure of conidiogenous loci are congruent, with LSU rDNA sequence analysis of C. virgaureae and Ramularia, species. DNA sequences of the type species of both genera, C. virgaureae and R. pusilla, were generated. For the first time a complex cup-shaped appressorium is reported for a member of plant. pathogenic cercosporoid hyphomycetes, based oil light, scanning and transmission electron microscopy The appressorium of C. virgaureae is formed by strongly branched hyphae radiating from a supporting intercellular hypha and remaining closely attached to each other. With its concave side the appressorium adheres to a cell of the leaf mesophyll. This structure is significant in comparison with morphologically unspecific intercellular hyphae known in other cercosporoid hyphomycetes. Scanning electron microscopy of conidiogenous loci also provide additional characteristics For distinguishing Cercosporella and Ramularia. Conidiogenous loci are smooth in Cercosporella but similar to the Cladosporium-type (consisting of a circular rim and a central dome) ill Ramularia.
机译：Cercosporella和Ramularia（与霉菌科，子囊菌科有关系的次霉变态）很难区分基础油。分生孢子和分生孢子的微观特征。尽管两个属的已知时间都超过了120年，但通过“简单”光和扫描电子显微镜发现了新的形态特征，现在可以明确区分两个属。对新发现的分生孢子位点相互作用结构和超微结构的形态学特征是一致的，对C. virgaureae和Ramularia物种进行了LSU rDNA序列分析。产生了C. virgaureae和R. pusilla这两个属的类型物种的DNA序列。首次报道了一个复杂的杯状食堂为植物的成员。致病性环状孢子菌，基于油光，扫描和透射电镜。维氏衣原体的形成是由支链的菌丝从一个支持的细胞间菌丝辐射出来并彼此紧密相连而形成的。腹侧凹面附着在叶肉的细胞上。与其他尾孢类疏水菌中已知的形态非特异性细胞间菌丝相比，该结构具有重要意义。分生孢子位点的扫描电子显微镜还提供了用于区分蜡状孢子虫和红孢菌的其他特征。子孢菌的子生基因座是光滑的，但类似于拉米利亚菌属的克拉多孢菌型（由圆形边缘和中央圆顶组成）。

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