RRC ID 89039
Author Hiruma J, Nojo H, Hiruma M, Sugita T, Makimura K, Harada K, Kano R.
Title Malassezia polysorbatinonusus sp. nov., a Novel Isolate from a Japanese Patient with Seborrheic Dermatitis.
Journal Mycopathologia
Abstract We describe a novel Malassezia species named Malassezia polysorbatinonusus, isolated from a Japanese patient with seborrheic dermatitis. The internal transcribed spacer (ITS) region of the isolate (LSEM 4845T) were only 94.7% identical to those of M. yamatoensis. A phylogenetic analysis of D1/D2 domain of 26S rDNA and β-TUB-encoding gene sequences also revealed that the novel isolate was distinct from the cluster formed by other Malassezia species. Notably, morphological characteristics and molecular analysis indicated that the novel species is most closely related to M. yamatoensis isolated from a Japanese patient with seborrheic dermatitis, although the two species exhibit different physiological characteristics. In contrast to M. yamatoensis, the novel isolate does not metabolize Tweens and can grow at 40 °C. These characteristics have historically distinguished animal Malassezia isolates from those isolated from humans. Therefore, we conclude the novel isolate constitutes a new species, which we designate M. polysorbatinonusus.
Volume 190(1)
Pages 15
Published 2025-1-13
DOI 10.1007/s11046-024-00926-2
PII 10.1007/s11046-024-00926-2
PMID 39806192
MeSH Cluster Analysis DNA, Fungal / chemistry DNA, Fungal / genetics DNA, Ribosomal / chemistry DNA, Ribosomal / genetics DNA, Ribosomal Spacer / chemistry DNA, Ribosomal Spacer / genetics Dermatitis, Seborrheic* / diagnosis Dermatitis, Seborrheic* / microbiology Dermatomycoses* / microbiology East Asian People Humans Japan Malassezia* / classification Malassezia* / genetics Malassezia* / isolation & purification Male Microscopy Molecular Sequence Data Phylogeny RNA, Ribosomal / genetics Sequence Analysis, DNA
Resource
General Microbes JCM39527