PYCC 8913
1 - Taxon name
Rhodotorula tropicalis
2 - Classification
Basidiomycota
3 - Strain (species name) changes
NA
4 - Status of the strain
Type strain of Rhodotorula tropicalis
5 - Basis for identification
Molecular (D1D2)
6 - Identified by
Pannida Khunnamwong et. al. Mar 2025
7 - Original strain number
SU21
8 - Accession numbers in other collections
TBRC 14874
9 - Biological Safety Level
BSL-1
10 - Access and Benefit Sharing (CBD, Nagoya protocol)
No known ABS restrictions
11 - PYCC strain status
Open
12 - Mediterranean strain
No
13 - Substrate of isolation
fruiting bodies of wild mushrooms
14 - Category of substrate
Fungi & yeasts
15 - Locality
Mueang Nakhon Pathom, Nakhon Pathom
16 - Country of origin
Thailand
18 - Sample Collected by
NA
19 - Isolated by and date of isolation
Pannida Khunnamwong, Jun. 2020
20 - Isolation details
NA
21 - Deposited by
Sasitorn Jindamorakot, Apr. 2021
22 - History
Sasitorn Jindamorakot > PYCC
23 - Preservation
Glass beads; 20% Glycerol; -150C
24 - Price per culture
85€
26 - Medium for growth
MYP
Title
Rhodotorula tropicalis sp. nov., a novel red yeast of the order Sporidiobolales isolated from Thailand, Indonesia and Japan

Author

Pannida Khunnamwong, Panadda Nualthaisong, Kanokwan Kingphadung, Masako Takashima, Takashi Sugita, I Nyoman Sumerta, Atit Kanti, Hiroko Kawasaki, Savitree Limtong

Abstract

Six yeast strains, representing a novel anamorphic species of the genus Rhodotorula, were investigated in this study. Among them, three strains, SU21, SU16 and SU14, were obtained from three different fruiting bodies of wild mushrooms in Thailand. One strain (ISM36-1) was isolated from soil in Japan, and two strains were isolated from soil (14Y315) and leaf litter (Y15Kr055) collected in Indonesia. Analysis of the sequences of the D1/D2 domain of the large subunit (LSU) rRNA gene and the internal transcribed spacer (ITS) regions showed that the six strains were identical or differed by only one nt substitution in both the D1/D2 domain of the LSU rRNA gene and the ITS regions. Rhodotorula paludigena CBS 6566T was the most closely related species but with 23–24 nt substitutions in the D1/D2 domain of the LSU rRNA gene and 38–39 nt substitutions in the ITS regions. Phylogenetic analysis based on the concatenated sequences of the ITS regions and D1/D2 domain showed that these strains represent a single species of the Rhodotorula clade that is distinct from other recognized species of the genus. Based on the phylogenetic analysis and phenotypic characteristics, these six strains were assigned to a novel species of the genus Rhodotorula, although sexual reproduction was not observed. The name, Rhodotorula tropicalis sp. nov., is proposed to accommodate the six strains. The holotype is TBRC 14874T and the ex-type culture is PYCC 8913 (=SU21). The MycoBank number of the novel species is MB 856795.

Publication Date

Link to Publication

https://doi.org/10.1099/ijsem.0.006701
Publication Pdf