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

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

JOURNAL=Frontiers in Microbiology

VOLUME=11

YEAR=2020

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2020.00456

DOI=10.3389/fmicb.2020.00456

ISSN=1664-302X

ABSTRACT=<p>During our ongoing surveys of fungi on submerged wood in the Greater Mekong Subregion, we collected two new species similar to <italic>Bactrodesmium longisporum</italic>. <italic>Pseudobactrodesmium</italic> gen. nov. is introduced to accommodate the new species, <italic>P. aquaticum</italic>, <italic>P. chiangmaiensis</italic> and <italic>B. longisporum</italic> 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. <italic>Pseudobactrodesmium aquaticum</italic> has longer conidia than <italic>P. chiangmaiensis</italic>. The placement of <italic>Pseudobactrodesmium</italic> in <italic>Dactylosporaceae</italic> (Eurotiomycetes) is a novel finding based on analyses of combined LSU, SSU, ITS and RPB2 sequence data. Our study reveals that <italic>Pseudobactrodesmium</italic> is likely to be a speciose genus with different species in streams around the world.</p>