4.6 Article

Two New Species and a New Record of Microdochium from Grasses in Yunnan Province, South-West China

Journal

JOURNAL OF FUNGI
Volume 8, Issue 12, Pages -

Publisher

MDPI
DOI: 10.3390/jof8121297

Keywords

two new species; Ascomycota; endophytes; multigene phylogeny; morphology; new taxa; taxonomy

Funding

  1. Strategic Priority Research Program of Chinese Academy of Sciences
  2. National Natural Science Foundation of China [XDA26020203]
  3. Youth Innovation Promotion Association of CAS, China [32001296]
  4. National Research Council of Thailand (NRCT) [2022396]
  5. [N42A650547]

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This study describes and illustrates two new species and a new record of Microdochium based on morphological characterization and multi-locus phylogenetic analyses. The findings provide important insights into the understanding of Microdochium species on monocotyledonous flowering plants in East Asia.
Microdochium species are frequently reported as phytopathogens on various plants and also as saprobic and soil-inhabiting organisms. As a pathogen, they mainly affect grasses and cereals, causing severe disease in economically valuable crops, resulting in reduced yield and, thus, economic loss. Numerous asexual Microdochium species have been described and reported as hyphomycetous. However, the sexual morph is not often found. The main purpose of this study was to describe and illustrate two new species and a new record of Microdochium based on morphological characterization and multi-locus phylogenetic analyses. Surveys of both asexual and sexual morph specimens were conducted from March to June 2021 in Yunnan Province, China. Here, we introduce Microdochium graminearum and M. shilinense, from dead herbaceous stems of grasses and report M. bolleyi as an endophyte of Setaria parviflora leaves. This study improves the understanding of Microdochium species on monocotyledonous flowering plants in East Asia. A summary of the morphological characteristics of the genus and detailed references are provided for use in future research.

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