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http://140.128.103.80:8080/handle/310901/24755
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| Title: | Yamadazyma siamensis sp. nov., Yamadazyma phyllophila sp. nov. And Yamadazyma paraphyllophila sp. nov., three novel yeast species isolated from phylloplane in Thailand and Taiwan |
| Authors: | Kaewwichian, R.;Yongmanitchai, W.;Kawasaki, H.;Wang, P.-H.;Yang, S.-H.;Limtong, S. |
| Contributors: | Department of Life Science, Tunghai University |
| Keywords: | Ascomycete yeast;New yeast species;Phylloplane yeast;Taiwan;Thailand;Yamadazyma paraphyllophila sp. nov.;Yamadazyma phyllophila sp. nov.;Yamadazyma siamensis sp. nov. |
| Date: | 2013 |
| Issue Date: | 2014-05-30T02:11:39Z (UTC)
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| Abstract: | Four strains representing three novel anamorphic yeast species were isolated from the external surface of sugarcane leaves (DMKU-RK254T), corn leaves (DMKU-RK548T), bean leaves (K129) in Thailand and hengchun pencilwood leaves (TrB1-1T) in Taiwan. On the basis of morphological, biochemical, physiological and chemotaxonomic characteristics, the sequence analysis of the D1/D2 region of the large subunit (LSU) rRNA gene, the internal transcribed spacer (ITS) region, the actin gene (ACT1) and the elongation factor 2 gene (EF2), the four strains were determined to represent novel Yamadazyma species although formation of ascospores was not observed. Strain DMKU-RK254T was determined to be related to Candida diddensiae, Candida naeodendra and Candida kanchanaburiensis but with 1.8, 1.8 and 2.0 % nucleotide substitutions in the D1/D2 region of the LSU rRNA gene, respectively. It was assigned to Yamadazyma siamensis sp. nov. (type strain DMKU-RK254T = BCC 50730T = NBRC 108901T = CBS 12573T). The sequences of the D1/D2 region of the LSU rRNA gene, the ITS region, ACT1 gene and EF2 gene of two strains (DMKU-RK548T and K129) were identical but differed from that of strain TrB1-1T by 0.6, 1.0, 3.3 and 5.9 % nucleotide substitutions, respectively. Therefore, the two strains (DMKU-RK548T and K129) and strain TrB1-1T were assigned to be two separate species. The closest species in terms of pairwise sequences similarity of the D1/D2 region to the two novel species was Yamadazyma philogaea but with 1.1-1.7 % nucleotide substitutions. The two strains (DMKU-RK548T and K129) were assigned to Yamadazyma phyllophila sp. nov. (type strain DMKU-RK548T = BCC 50736T = NBRC 108906T = CBS 12572T) and the strain TrB1-1T was named Yamadazyma paraphyllophila sp. nov. (type strain TrB1-1T = BCRC 23030T = CCTCC AY 204005T = CBS 9928T). ? 2012 Springer Science+Business Media Dordrecht. |
| Relation: | Antonie van Leeuwenhoek, International Journal of General and Molecular Microbiology,Vol.103,Issue4,P.777-788 |
| Appears in Collections: | [生命科學系所] 期刊論文
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