The Experts below are selected from a list of 69 Experts worldwide ranked by ideXlab platform
Cletus P. Kurtzman - One of the best experts on this subject based on the ideXlab platform.
-
A new methanol assimilating yeast, Ogataea parapolymorpha, the ascosporic state of Candida parapolymorpha
Antonie van Leeuwenhoek, 2011Co-Authors: Cletus P. KurtzmanAbstract:Ogataea parapolymorpha sp. n. (NRRL YB-1982, CBS 12304, type strain), the ascosporic state of Candida parapolymorpha , is described. The species appears homothallic, assimilates methanol as is typical of most Ogataea species and forms hat-shaped ascospores in asci that become deliquescent. O . parapolymorpha is closely related to Ogataea angusta and Ogataea polymorpha . The three species can be resolved from gene sequence analyses but are unresolved from fermentation and growth reactions that are typically used for yeast identification. On the basis of multiple isolates, O . angusta is known only from California, USA, in association with Drosophila and Aulacigaster flies, O . parapolymorpha is predominantly associated with insect frass from trees in the eastern USA but O . polymorpha has been isolated from various substrates in the USA, Brazil, Spain and Costa Rica.
-
A new methanol assimilating yeast, Ogataea parapolymorpha, the ascosporic state of Candida parapolymorpha.
Antonie van Leeuwenhoek, 2011Co-Authors: Cletus P. KurtzmanAbstract:Ogataea parapolymorpha sp. n. (NRRL YB-1982, CBS 12304, type strain), the ascosporic state of Candida parapolymorpha, is described. The species appears homothallic, assimilates methanol as is typical of most Ogataea species and forms hat-shaped ascospores in asci that become deliquescent. O. parapolymorpha is closely related to Ogataea angusta and Ogataea polymorpha. The three species can be resolved from gene sequence analyses but are unresolved from fermentation and growth reactions that are typically used for yeast identification. On the basis of multiple isolates, O. angusta is known only from California, USA, in association with Drosophila and Aulacigaster flies, O. parapolymorpha is predominantly associated with insect frass from trees in the eastern USA but O. polymorpha has been isolated from various substrates in the USA, Brazil, Spain and Costa Rica.
Jianlong J. Zhou - One of the best experts on this subject based on the ideXlab platform.
-
Methylotrophic yeasts near Ogataea (Hansenula) polymorpha: a proposal of Ogataea angusta comb. nov. and Candida parapolymorpha sp. nov.
FEMS yeast research, 2010Co-Authors: Sung-oui Suh, Jianlong J. ZhouAbstract:Ogataea (Hansenula) polymorpha and related yeasts were studied to clarify their taxonomy and phylogenetic relationships. The molecular analyses based on ribosomal DNA sequences revealed that (1) ATCC 14755, type strain of Pichia angusta, is phylogenetically distinguished from the majority of O. polymorpha strains including ATCC 34438 T ( = NRRL Y-5445 T =CBS 4732 T ), type of the species; (2) Ogataea thermophila is conspecific to O. polymorpha; and (3) two of the strains, ATCC 26012 and ATCC 58401, are a novel Candida species closely related to O. polymorpha. The conclusions were also supported by physiological characteristics and other taxonomic features of these strains. Therefore, we propose here two novel species, Ogataea angusta comb. nov. (ATCC 14755 T = CBS 7073 T =NRRL Y-2214 T ) and Candida parapolymorpha sp. nov. (ATCC 26012 T =NRRL Y-7560 T ), and conclude that O. thermophila is a synonym of O. polymorpha.
Sung-oui Suh - One of the best experts on this subject based on the ideXlab platform.
-
Methylotrophic yeasts near Ogataea (Hansenula) polymorpha: a proposal of Ogataea angusta comb. nov. and Candida parapolymorpha sp. nov.
FEMS yeast research, 2010Co-Authors: Sung-oui Suh, Jianlong J. ZhouAbstract:Ogataea (Hansenula) polymorpha and related yeasts were studied to clarify their taxonomy and phylogenetic relationships. The molecular analyses based on ribosomal DNA sequences revealed that (1) ATCC 14755, type strain of Pichia angusta, is phylogenetically distinguished from the majority of O. polymorpha strains including ATCC 34438 T ( = NRRL Y-5445 T =CBS 4732 T ), type of the species; (2) Ogataea thermophila is conspecific to O. polymorpha; and (3) two of the strains, ATCC 26012 and ATCC 58401, are a novel Candida species closely related to O. polymorpha. The conclusions were also supported by physiological characteristics and other taxonomic features of these strains. Therefore, we propose here two novel species, Ogataea angusta comb. nov. (ATCC 14755 T = CBS 7073 T =NRRL Y-2214 T ) and Candida parapolymorpha sp. nov. (ATCC 26012 T =NRRL Y-7560 T ), and conclude that O. thermophila is a synonym of O. polymorpha.
Ching-fu Lee - One of the best experts on this subject based on the ideXlab platform.
-
Ogataea haglerorum sp. nov., a novel member of the species complex, Ogataea (Hansenula) polymorpha.
International Journal of Systematic and Evolutionary Microbiology, 2017Co-Authors: Gennadi I. Naumov, Elena S. Naumova, Ching-fu LeeAbstract:Three strains representing a novel species of the Ogataea clade were isolated by W. T. Starmer and H. J. Phaff from rotting tissue of Opuntia phaeacantha in Arizona, USA. Analyses of the sequences of the D1/D2 LSU rRNA gene, ITS1-5.8S-ITS2, and translation elongation factor-1α (EF-1 α) showed that this novel species belongs to the Ogataea polymorpha complex formed by Ogataea angusta, Ogataea parapolymorpha and Ogataea polymorpha. The novel species differs from these species by 4–5 nucleotide substitutions in the D1/D2 domain, by 28–29 nucleotide substitutions in the EF-α gene and by 18–24 nucleotide substitutions and 2–5 indels in the ITS–5.8S region. The name Ogataea haglerorum sp. nov. is proposed for this novel species. The type strain is VKPM Y-2583T (=CBS 14645T=UCDFST 17-101T). The Mycobank number is MB 819772.
Gennadi I. Naumov - One of the best experts on this subject based on the ideXlab platform.
-
Ogataea haglerorum sp. nov., a novel member of the species complex, Ogataea (Hansenula) polymorpha.
International Journal of Systematic and Evolutionary Microbiology, 2017Co-Authors: Gennadi I. Naumov, Elena S. Naumova, Ching-fu LeeAbstract:Three strains representing a novel species of the Ogataea clade were isolated by W. T. Starmer and H. J. Phaff from rotting tissue of Opuntia phaeacantha in Arizona, USA. Analyses of the sequences of the D1/D2 LSU rRNA gene, ITS1-5.8S-ITS2, and translation elongation factor-1α (EF-1 α) showed that this novel species belongs to the Ogataea polymorpha complex formed by Ogataea angusta, Ogataea parapolymorpha and Ogataea polymorpha. The novel species differs from these species by 4–5 nucleotide substitutions in the D1/D2 domain, by 28–29 nucleotide substitutions in the EF-α gene and by 18–24 nucleotide substitutions and 2–5 indels in the ITS–5.8S region. The name Ogataea haglerorum sp. nov. is proposed for this novel species. The type strain is VKPM Y-2583T (=CBS 14645T=UCDFST 17-101T). The Mycobank number is MB 819772.
