Polyphasic characterization of <i>Biscogniauxia papillata</i> sp. nov. (<i>Graphostromataceae</i>) and isolation of the cytotoxic cyclic pentapeptide cyclobiscognioxin A.

ABSTRACT: The Graphostromataceae (Xylariales) mainly contains species known for their endophytic lifestyle, although some may shift to opportunistic pathogenicity under host stress and subsequently colonize woody tissues as saprotrophs. The largest genus, Biscogniauxia, remains largely unexplored and would greatly benefit from a polyphasic taxonomic revision. Likewise, the secondary metabolism of these fungi has been only partially studied compared to related families within the Xylariales, despite their ecological versatility and potential latent pathogenicity. Herein, we introduce Biscogniauxia papillata as a new species from Thailand, based on morphological features and robust multi-locus phylogenetic analyses. Secondary metabolite profiling in different media,

SUBMITTER: Wongkanoun S 

PROVIDER: S-EPMC12783183 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature