Three New Species of Clonostachys (Hypocreales, Ascomycota) from China.
Three New Species of Clonostachys (Hypocreales, Ascomycota) from China.
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DOI：
10.3390/jof8101027
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发表时间：
2022-09-28
期刊：
影响因子：
4.7
通讯作者：
Zhuang, Wen-Ying
中科院分区：
文献类型：
--
作者：
Zeng, Zhao-Qing;Zhuang, Wen-Ying
根据采自中国的新标本，介绍了中国栅穗霉属3新种。Clonostachys chongqingensis sp. nov.的特征是：外壁淡黄色至淡橙黄色，具极低的乳突，棒状至近圆柱形，子囊孢子椭圆形至长椭圆形，具微刺，子囊孢子13-16 × 4.5-5.5 μm;分生孢子柄为顶顶孢至轮生孢子梗，分生孢子椭圆形至杆状。新种Clonostachys leptoderma sp. nov.在发育良好的基质上具有粉白色近球形至球形的周壁，具有薄的周壁，棒状至近圆柱形的子囊，椭圆形至细长椭圆形具微刺的子囊孢子7.5-11 × 2.5-3.5 μm;产生轮状分生孢子梗和椭圆形至近椭圆形的分生孢子。少孢粘穗霉Clonostachys oligospora sp. nov.的特征是单生或群居的被皮，具乳突，棒状子囊，子囊孢子6-8个，壁光滑，大小为9-17 × 3-5.5 μm，分生孢子梗轮生，分生孢子稀疏，近纺锤形。核核糖体DNA ITS 1 -5. 8 S-ITS 2和β-微管蛋白序列的形态学特征和系统发育分析支持它们在Clonostachys中的位置和它们的科学分类。本文比较了新分类群和它们的近亲之间的区别。
Three new species of Clonostachys are introduced based on specimens collected from China. Clonostachys chongqingensis sp. nov. is distinguished by pale yellow to pale orange-yellow perithecia with a very low papilla, clavate to subcylindrical asci possessing ellipsoidal to elongate-ellipsoidal spinulose ascospores 13–16 × 4.5–5.5 μm; it has acremonium- to verticillium-like conidiophores and ellipsoidal to rod-shaped conidia. Clonostachys leptoderma sp. nov. has pinkish-white subglobose to globose perithecia on a well-developed stroma and with a thin perithecial wall, clavate to subcylindrical asci with ellipsoidal to elongate-ellipsoidal spinulose ascospores 7.5–11 × 2.5–3.5 μm; it produces verticillium-like conidiophores and ellipsoidal to subellipsoidal conidia. Clonostachys oligospora sp. nov. features solitary to gregarious perithecia with a papilla, clavate asci containing 6–8 smooth-walled ascospores 9–17 × 3–5.5 μm; it forms verticillium-like conidiophores and sparse, subfusiform conidia. The morphological characteristics and phylogenetic analyses of combined nuclear ribosomal DNA ITS1-5.8S-ITS2 and beta-tubulin sequences support their placement in Clonostachys and their classification as new to science. Distinctions between the novel taxa and their close relatives are compared herein.
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影响因子：
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