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

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 Ehretia acuminata (Boraginaceae). Both morphology and multigene analyses revealed two taxa as new species (Hermatomyces turbinatus and H. jinghaensis) and the remaining collections as new records of H. sphaericus. Hermatomyces turbinatus 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. Hermatomyces jinghaensis 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.

Fungi associated with dead branches of Magnolia grandiflora: A case study from Qujing, China

“…Several studies (which were based on DNA sequence analyses) described numerous fungal species during the last decade from tropical countries such as, Thailand and India (Chaiwan et al, 2020 ; Calabon et al, 2021 ; Rajeshkumar et al, 2021 ). A large number of fungal species have also been described from subtropical China, especially in Yunnan and Guizhou provinces (Luo et al, 2018 ; Lu et al, 2021 ; Ren et al, 2021 ; Wang et al, 2021 ; Wijayawardene et al, 2021 ). These studies mentioned that a large number of fungal species are waiting to be discovered in Southwestern China, including the Guizhou and Yunnan Provinces.…”

Exploring ascomycete diversity in Yunnan II: Introducing three novel species in the suborder Massarineae (Dothideomycetes, Pleosporales) from fern and grasses

“…For instance, D.N. Wanasinghe and his colleagues (2018–2022) carried out research studies on fungal biogeography and published over 40 novel taxa of wood-inhabiting fungi, as well as other substrates in this region ( Bao et al 2019 ; Wanasinghe et al 2020 , 2021 ; Yasanthika et al 2020 ; Mortimer et al 2021 ; Ren et al 2021 ; Wijayawardene et al 2022a ; Maharachchikumbura et al 2022 ). Simultaneously, S. Tibpromma and her colleagues (2018–2022) have also carried out research studies of fungal taxonomy and diversity on various host plants, such as agarwood, coffee, Pandanus , para rubber and tea plants.…”

Morphological and multi-gene phylogenetic analyses reveal five new hyphomycetes from freshwater habitats

“…Notes: Hermatomyces hainanensis is similar to other Hermatomyces species with dimorphic conidia, such as H. bifurcatus , H. constrictus , H. iriomotensis , H. jinghaensis , H. krabiensis , H. megaspores , H. tucumanensis , and H. turbinatus ( Chang, 1995 ; Tibpromma et al, 2016 , 2017 ; Hashimoto et al, 2017 ; Koukol et al, 2018 ; Ren et al, 2021 ). Based on phylogenetic analyses, Hermatomyces hainanensis (GZCC 23-0592) is closely related to H. megasporus (CCF 5897 and CCF 5898) and H. reticulatus (CCF 5893 and MFLUCC 15-0843), although H. reticulatus only exhibits one type of conidia ( Koukol et al, 2018 ).…”