Yeasts producing zeatin.
| Autor: | Streletskii RA; Soil Science Faculty, Lomonosov Moscow State University, Moscow, Russia., Kachalkin AV; Soil Science Faculty, Lomonosov Moscow State University, Moscow, Russia.; All-Russian Collection of Microorganisms (VKM), G.K.Skryabin Institute of Biochemistry and Physiology of Microorganisms RAS, Pushchino, Russia., Glushakova AM; Soil Science Faculty, Lomonosov Moscow State University, Moscow, Russia., Yurkov AM; DSMZ-German Collection of Microorganisms and Cell Cultures, Leibniz Institute, Braunschweig, Germany., Demin VV; Soil Science Faculty, Lomonosov Moscow State University, Moscow, Russia. |
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| Jazyk: | angličtina |
| Zdroj: | PeerJ [PeerJ] 2019 Feb 20; Vol. 7, pp. e6474. Date of Electronic Publication: 2019 Feb 20 (Print Publication: 2019). |
| DOI: | 10.7717/peerj.6474 |
| Abstrakt: | The present paper describes the first screening study of the ability of natural yeast strains to synthesize in culture the plant-related cytokine hormone zeatin, which was carried out using HPLC-MS/MS. A collection of 76 wild strains of 36 yeast species (23 genera) isolated from a variety of natural substrates was tested for the production of zeatin using HPLC-MS/MS. Zeatin was detected in more than a half (55%) of studied strains and was more frequently observed among basidiomycetous than ascomycetous species. The amount of zeatin accumulated during the experiment varied among species and strains. Highest zeatin values were recorded for basidiomycete Sporobolomyces roseus and ascomycete Taphrina sp. that produced up to 8,850.0 ng and 5,166.4 ng of zeatin per g of dry biomass, respectively. On average, the ability to produce zeatin was more pronounced among species isolated from the arctic-alpine zone than among strains from tropical and temperate climates. Our study also demonstrated that epiphytic strains and pigmented yeast species, typically for phyllosphere, are able to more often produce a plant hormone zeatin than other yeasts. Competing Interests: The authors declare that they have no competing interests. |
| Databáze: | MEDLINE |
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