Novel saprobic Hermatomyces species (Hermatomycetaceae, Pleosporales) from China (Yunnan Province) and Thailand

Guang-Cong Ren; Dhanushka N Wanasinghe; Jutamart Monkai; Peter E Mortimer; Kevin D Hyde; Jian-Chu Xu; Aimin Pang; Heng Gui

doi:10.3897/mycokeys.82.67973

Novel saprobic Hermatomyces species (Hermatomycetaceae, Pleosporales) from China (Yunnan Province) and Thailand

MycoKeys. 2021 Aug 9:82:57-79. doi: 10.3897/mycokeys.82.67973. eCollection 2021.

Authors

Guang-Cong Ren^{1

2

3}, Dhanushka N Wanasinghe^{4

5}, Jutamart Monkai², Peter E Mortimer⁴, Kevin D Hyde^{2

3}, Jian-Chu Xu⁴, Aimin Pang⁶, Heng Gui⁴

Affiliations

¹ Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand.
² School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.
³ Guiyang Nursing Vocational College, Guiyang 550081, Guizhou, China.
⁴ Center for Mountain futures, Kunming Institute of Botany, Chinese Academy of Sciences, Honghe County 654400, Yunnan, China.
⁵ CIFOR-ICRAF China Program, World Agroforestry (ICRAF), Kunming 650201, Yunnan, China.
⁶ Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang, 441003, Hubei, China.

Abstract

During our survey of the diversity of woody litter fungi in China and Thailand, three Hermatomyces species were collected from dead woody twigs of Dipterocarpus sp. (Dipterocarpaceae) and Ehretiaacuminata (Boraginaceae). Both morphology and multigene analyses revealed two taxa as new species (Hermatomycesturbinatus and H.jinghaensis) and the remaining collections as new records of H.sphaericus. Hermatomycesturbinatus is characterized by 1) dimorphic conidia, having circular to oval lenticular conidia and 2) turbinate conidia consisting of two columns with two septa composed of 2-3 cells in each column. Hermatomycesjinghaensis is characterized by dimorphic conidia, having circular to oval lenticular conidia and clavate or subcylindrical to cylindrical conidia and consisting of one or two columns with 6-8 cells in each column. Phylogenetic analyses of combined LSU, ITS, tub2, tef1-α and rpb2 sequence data supports the placement of these new taxa within Hermatomycetaceae with high statistical support.

Keywords: 2 new species; hyphomycetes; phylogeny; taxonomy; woody litter fungi.

Guang-Cong Ren, Dhanushka N. Wanasinghe, Jutamart Monkai, Peter E. Mortimer, Kevin D. Hyde, Jian-Chu Xu, Aimin Pang, Heng Gui.

Grants and funding

Open Research Fund Program of Science and Technology on Aerospace Chemical Power Laboratory (STACPL320181B04). The National Natural Science Foundation of China (NSFC21975066, NSFC21875061). The Thailand Research Fund for the grant entitled Impact of climate change on fungal diversity and biogeography in the Greater Mekong Subregion (No. RDG6130001).