Hyperdermium:: a new clavicipitalean genus for some tropical epibionts of dicotyledonous plants
Hyperdermium:: a new clavicipitalean genus for some tropical epibionts of dicotyledonous plants
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DOI：
10.2307/3761587
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发表时间：
2000-09-01
期刊：
影响因子：
2.8
通讯作者：
White, JF
中科院分区：
文献类型：
--
作者：
Sullivan, RF;Bills, GF;White, JF
对两种产于菊科植物上的热带棒形菌的形态特征进行了研究。这些物种被发现是表面上的茎活植物，但感染的早期阶段涉及坏死的规模昆虫。这些真菌与其他棒孢菌科的不同之处在于具有产生多隔分生孢子的无性型。提出了一个新属-。在马铃薯葡萄糖琼脂覆盖醋酸纤维素片的文化，这两个物种产生的殖民地类似于那些植物组织。贝氏菌在培养中产生分生孢子，但不产生孢子囊。垫状厚皮病菌在培养中既产生分生孢子又产生孢子囊。系统发育分析使用大亚基rDNA序列放置Hyperdermium在亚科Cordycipitoideae。本文研究了红腹锦鸡儿（H.垫状体椎体发育为Epichloe型。
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.