Gao Ying, Zhong Tingfang, Bhat Jayarama D, Gomes de Farias Antonio Roberto, Dawoud Turki M, Hyde Kevin D, Xiong Weiqiang, Li Yunju, Gui Heng, Yang Xuefei, Wu Shixi, Wanasinghe Dhanushka N
Center for Mountain Futures, Kunming Institute of Botany, Honghe 654400, Yunnan, China Center for Mountain Futures, Kunming Institute of Botany Kunming China.
School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand Mae Fah Luang University Chiang Rai Thailand.
MycoKeys. 2023 Jul 25;98:273-297. doi: 10.3897/mycokeys.98.107093. eCollection 2023.
During a survey of microfungi associated with grasslands and related vegetation types from Yunnan Province in China, various ascomycetous and coelomycetous fungi were isolated. This study reports the discovery of four strains of ascomycetous and coelomycetous fungi from dead stalks of L. (Hypericaceae) and L. (Rosaceae) in the Zhaotong region of Yunnan Province, China. The isolates were characterized using multi-locus phylogenetic analyses and were found to represent a new monophyletic lineage in Melanommataceae (Pleosporales, Dothideomycetes). This new clade was named as gen. et sp. nov. which consists of both sexual and asexual morphs. The sexual morph is characterized by globose to subglobose ascomata with a central ostiole, cylindrical asci with a pedicel and ocular chamber, and muriform, ellipsoidal to fusiform ascospores. The asexual morph has synanamorphs including both brown, muriform macroconidia and hyaline, round to oblong or ellipsoidal microconidia. These findings contribute to the understanding of fungal diversity in grasslands and related vegetation types in Yunnan Province, China.
在中国云南省对与草原及相关植被类型相关的微真菌进行调查期间，分离出了各种子囊菌和腔孢菌。本研究报告了在中国云南省昭通地区从金丝桃科贯叶连翘属植物和蔷薇科委陵菜属植物的枯死茎中发现的四株子囊菌和腔孢菌。利用多位点系统发育分析对分离株进行了表征，发现它们代表了美黑孢科（座囊菌目，座囊菌纲）中的一个新的单系谱系。这个新的分支被命名为新属新种，它包括有性和无性形态。有性形态的特征是球形至近球形的子囊果，有一个中央孔口，具梗和眼腔的圆柱形子囊，以及具横隔多室、椭圆形至梭形的子囊孢子。无性形态有合轴分生孢子，包括褐色、具横隔多室的大分生孢子和透明、圆形至长方形或椭圆形的小分生孢子。这些发现有助于了解中国云南省草原及相关植被类型中的真菌多样性。
