Phylogeny and a new species of <i>Polylobatispora</i>

Abstract

During surveys conducted on freshwater fungi from Vietnam, a new aquatic anamorphic fungus was isolated from decaying leaves in Vietnam. The fungus produced phialidic, swollen conidiophore and conidiogenous cells with one-celled conidia with four very tiny lobes. Based on its conidial development and other morphological characteristics, we confirmed that this is a novel fungus and described it as P. ambigua sp. nov. Phylogenetic analyses of P. ambigua based on the LSU nrDNA sequences showed that this fungus clusters in a single clade with the two known Polylobatispora spp. with 97% bootstrap value which is sister with Pseudoprobiscisporaceae . The Polylobatispora clade is nested in the Attracrosporales , Sordariomycetes . Furthermore, in this study two known species of Polylobatispora ( P. deltoidea and P. quinquecornuta ) were also isolated and illustrated.