Zeng Zhao-Qing, Zhuang Wen-Ying
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.
J Fungi (Basel). 2022 Sep 28;8(10):1027. doi: 10.3390/jof8101027.
Three new species of are introduced based on specimens collected from China. 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. 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. 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 and their classification as new to science. Distinctions between the novel taxa and their close relatives are compared herein.
基于在中国采集的标本,描述了三个新物种。新物种1的特征为:子囊壳浅黄色至浅橙黄色,具很低的乳头状突起,子囊棍棒形至近圆柱形,含椭圆形至长椭圆形具小刺的子囊孢子,大小为13 - 16×4.5 - 5.5μm;分生孢子梗呈枝顶孢属至轮枝孢属状,分生孢子椭圆形至杆状。新物种2的特征为:在发育良好的基质上具粉白色近球形至球形的子囊壳,子囊壳壁薄,子囊棍棒形至近圆柱形,含椭圆形至长椭圆形具小刺的子囊孢子,大小为7.5 - 11×2.5 - 3.5μm;产生轮枝孢属状的分生孢子梗和椭圆形至近椭圆形的分生孢子。新物种3的特征为:子囊壳单生至聚生,具乳头状突起,子囊棍棒形,含6 - 8个壁光滑的子囊孢子,大小为9 - 17×3 - 5.5μm;形成轮枝孢属状的分生孢子梗和稀疏的、近梭形的分生孢子。核糖体DNA ITS1 - 5.8S - ITS2和β - 微管蛋白序列的形态特征及系统发育分析支持它们归入该属,并将其分类为科学新物种。本文比较了这些新分类单元与其近缘种之间的区别。