< em > Starmerella kisarazuensis < /em > f.a., sp. nov., a novel yeast isolated from < em > Trifolium pratense < /em > flowers

Int J Syst Evol Microbiol. 2024 Jan;74(1). doi: 10.1099/ijsem.0.006253.ABSTRACTThree yeast isolates, NBRC 115909T, NBRC 115910 and NBRC 116270, were isolated from Trifolium pratense (red clover) flowers collected from Kisarazu, Chiba, Japan. Analysis of the sequences of the D1/D2 domains of the large subunit (LSU) rRNA gene and the internal transcribed spacer (ITS) regions revealed that these isolates represent a single novel species within the genus Starmerella. Also, no ascospore formation was observed. The yeast isolates were closely related to Starmerella vitae UWOPS 00-107.2T and Starmerella bombi NRRL Y-17081T. They differed from S. vitae, the most closely related species with a validly published name, by ten nucleotide substitutions with two gaps in the D1/D2 domains and 20 nucleotide substitutions in the ITS region. Moreover, the three isolates exhibited distinct phenotypic characteristics from the closely related species. Therefore, we suggest that these three isolates represent a novel species, designated as Starmerella kisarazuensis f.a., sp. nov. The holotype is NBRC 115909T (isotype: CBS 18485T).PMID:38284408 | DOI:10.1099/ijsem.0.006253
Source: International Journal of Systematic and Evolutionary Microbiology - Category: Microbiology Authors: Source Type: research