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Cyanase-independent...
Cyanase-independent utilization of cyanate as a nitrogen source in ascomycete yeasts
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- Linder, Tomas (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences
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(creator_code:org_t)
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- 2018-12-13
- 2019
- Engelska.
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Ingår i: World Journal of Microbiology and Biotechnology. - : Springer Science and Business Media LLC. - 0959-3993 .- 1573-0972. ; 35
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https://link.springe...
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https://res.slu.se/i...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The occurrence of putative cyanases (EC 4.2.1.104) in the genomes of yeasts belonging to the ascomycete sub-phyla Saccharomycotina (budding yeasts) and Taphrinomycotina (fission yeasts) was investigated. Predicted gene products displaying significant sequence similarity to previously characterized cyanases were identified in the genomes of the budding yeast Lipomyces starkeyi and the fission yeasts Protomyces lactucaedebilis, Saitoella complicata and Taphrina deformans. Li. starkeyi and Sai. complicata were further tested for their ability to utilize cyanate as a nitrogen source. However, neither species displayed significant growth when cyanate was provided as the sole nitrogen source. Cyanate utilization assays of 15 yeast species whose genomes lack detectable cyanase homologs unexpectedly resulted in consistently strong growth in six species as well as variable growth in an additional three species. The present study represents the first known report of cyanase-independent utilization of cyanate as a nitrogen source in ascomycete yeasts. Implications of cyanate utilization for the ecological niches occupied by ascomycete yeasts are discussed.
Ämnesord
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
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