Four new soil-inhabiting Chrysosporium records

Abstract:

[Background] Chrysosporium was a kind of important keratinophilic fungi. [Objective] The Chrysosporium resources in soil samples from Gansu and Yunnan provinces were investigated. [Methods] Different soil samples were collected, and cultivated with the chicken feather and hairs by baiting technique, then the target strains were isolated and identified by the morphological characteristics and phylogeny of ITS rDNA sequences. [Results] There were five target strains of Chrysosporium obtained, strain H5.11 was very similar to the original description of C. articulatum in morphology and clustered into a subclade with the sequence of C. articulatum from GenBank in phylogenetic tree; Strain H10.10 was consistent with C. georgiae in morphology, both of them appeared red colony, and it was closely related to the type sequence of C. georgiae in phylogeny; Strains EB8803M and EB8801M had similar morphological characters to C. submersum, and it clustered together with sequences of C. submersum from GenBank in phylogenetic tree; Strain O1 was similar to the original description of C. zonatum in morphology and it also clustered together with the sequence of C. zonatum from GenBank. Therefore, these strains were identified to four species, C. articulatum, C. georgiae, C. submersum and C. zonatum. [Conclusion] These four species are new to China.