Frontiers in Microbiology (Apr 2020)

Pseudobactrodesmium (Dactylosporaceae, Eurotiomycetes, Fungi) a Novel Lignicolous Genus

  • Wei Dong,
  • Wei Dong,
  • Wei Dong,
  • Kevin D. Hyde,
  • Mingkwan Doilom,
  • Mingkwan Doilom,
  • Xian-Dong Yu,
  • D. Jayarama Bhat,
  • Rajesh Jeewon,
  • Saranyaphat Boonmee,
  • Gen-Nuo Wang,
  • Sarunya Nalumpang,
  • Huang Zhang,
  • Huang Zhang,
  • Huang Zhang

DOI
https://doi.org/10.3389/fmicb.2020.00456
Journal volume & issue
Vol. 11

Abstract

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During our ongoing surveys of fungi on submerged wood in the Greater Mekong Subregion, we collected two new species similar to Bactrodesmium longisporum. Pseudobactrodesmium gen. nov. is introduced to accommodate the new species, P. aquaticum, P. chiangmaiensis and B. longisporum is transferred to this genus. Fasciculate conidiophores, enteroblastic conidiogenous cells and subulate to fusiform, phragmoseptate conidia with a tapering apical cell and sheath characterize the genus. Pseudobactrodesmium aquaticum has longer conidia than P. chiangmaiensis. The placement of Pseudobactrodesmium in Dactylosporaceae (Eurotiomycetes) is a novel finding based on analyses of combined LSU, SSU, ITS and RPB2 sequence data. Our study reveals that Pseudobactrodesmium is likely to be a speciose genus with different species in streams around the world.

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