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首页> 外文期刊>Mycologia >Hyperdermium: a new clavicipitalean genus for some tropical epibionts of dicotyledonous plants
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Hyperdermium: a new clavicipitalean genus for some tropical epibionts of dicotyledonous plants

机译：高皮病：双子叶植物某些热带表皮的新锁骨亚科

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The morphological characteristics of two tropical clavicipitalean fungi on species of the plant family Asteraceae were examined. These species were found to be superficial on the stems of living plants but early stages of infection involve necrotrophy of scale insects. These fungi are distinct from other Clavicipitaceae by possession of anamorphs producing multiseptate conidia. A new genus, Hyperdermium , was proposed to accommodate these ttwo species. In cultures on potato dextrose agar overlaid with cellulose acetate sheets, both species produced colonies resembling those on plant tissues. Hyperdermium bertonii produced conidia in culture but not perithecia. Hyperdermium pulvinatum produced both conidia and perithecia in culture. Phylogenetic analysis using large subunit rDNA sequences placed Hyperdermium in the subfamily Cordycipitoideae. A study was made of perithecial ontogeny in H. pulvinatum. Centrum development was of the Epichloe-type. [References: 36]
机译：研究了两种热带锁骨丝真菌对菊科植物的形态学特征。发现这些物种在活植物的茎上是表面的，但感染的早期阶段涉及规模昆虫的坏死病。这些真菌与其他锁草科不同，因为它们具有产生多隔膜分生孢子的无性型。提出了一个新属，Hyderdermium，来容纳这两个物种。在覆盖有醋酸纤维素片的马铃薯葡萄糖琼脂上进行培养时，两种菌落均产生类似于植物组织上的菌落。 bertonii皮在培养过程中产生了分生孢子，但未形成包膜。厚皮粉在培养中同时产生分生孢子和皮膜。使用大的亚基rDNA序列进行系统发育分析，将高皮放在Hyper虫科中。进行了对H. pulvinatum的皮细胞个体发育的研究。 Centrum的发展是Epichloe型的。 [参考：36]

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