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Int J Syst Evol Microbiol. 2018 Jul;68(7):2299-2305. doi: 10.1099/ijsem.0.002829. Epub 2018 May 21.

Starmerella reginensis f.a., sp. nov. and Starmerella kourouensis f.a., sp. nov., isolated from flowers in French Guiana.

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1​Laboratoire de Biotechnologie et Microbiologie des Aliments, Unité de Formation et de Recherche en Sciences et Technologie des Aliments (UFR-STA), Université Nangui-Abrogoua, 02 BP 801, Abidjan, 02, Côte d'Ivoire.
2​Micalis Institute, INRA, AgroParisTech, CIRM-Levures, Université Paris-Saclay, 78350 Jouy-en-Josas, France.


Analysis of yeasts isolated from various biotopes in French Guiana led to the identification of two strains isolated from flowers and designated CLIB 1634T and CLIB 1707T. Comparison of the D1/D2 domain of the large subunit (LSU D1/D2) rRNA gene sequences of CLIB 1634T and CLIB 1707T to those in the GenBank database revealed that these strains belong to the Starmerella clade. Strain CLIB 1634T was shown to diverge from the closely related Starmerella apicola type strain CBS 2868T with a sequence divergence of 1.34 and 1.30 %, in the LSU D1/D2 rRNA gene and internal transcribed spacer (ITS) sequences respectively. Strain CLIB 1634T and Candida apicola CBS 2868T diverged by 3.81 and 14.96 % at the level of the protein-coding gene partial sequences EF-1α and RPB2, respectively. CLIB 1707T was found to have sequence divergence of 3.88 and 9.16 % in the LSU D1/D2 rRNA gene and ITS, respectively, from that of the most closely related species Starmerella ratchasimensis type strain CBS 10611T. The species Starmerella reginensis f.a., sp. nov. and Starmerella kourouensis f.a., sp. nov. are proposed to accommodate strains CLIB 1634T (=CBS 15247T) and CLIB 1707T (=CBS 15257T), respectively.


French Guiana; Sacharomycotina; Sarmerella; flower; yeast

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