Autor segons l'article: Vegas C; Zavaleta AI; Canales PE; Esteve-Zarzoso B
Departament: Bioquímica i Biotecnologia
e-ISSN: 2544-4646
Autor/s de la URV: Esteve Zarzoso, Braulio / VEGAS PÉREZ, CARLOS ALFREDO
Paraules clau: Yeast diversity Sp nov. Ribosomal-rna gene Rflp analysis Pcr-rflp L. Identification Fruit Fermentations Epiphytic yeasts Diversity Candida-pseudohaemulonii Bacteria Amazonia 5.8s-its
Resum: Yeasts, commonly present on the surface of fruits, are of industrial interest for the production of enzymes, flavorings, and bioactive compounds, and have many other scientific uses. The Amazonian rainforest may be a good source of new species or strains of yeasts, but their presence on Amazonian fruits is unknown. The aim of this study was to identify and characterize yeasts isolated from Amazonian native fruits using molecular and phenotypic methods. In total, 81 yeast isolates were obtained from 10 fruits species. Rep-PCR showed 29 strain profiles. Using a combination of restriction-fragment length polymorphism (RFLP) of the 5.8S-ITS region and D1/D2 sequencing of the 26S rRNA gene, 16 species were identified belonging to genera Candida, Debaryomyces, Hanseniaspora, Kodamaea, Martiniozyma, and Meyerozyma. The most dominant species were Candida tropicalis, Debaryomyces hansenii, Hanseniaspora opuntiae, and Hanseniaspora thailandica. H. opuntiae and H. thailandica showed the highest number of the strain profiles. Phenotypic profiles were variable between species, and even among strains. Screening for hydrolases showed lipolytic activity in only one isolate, while proteolytic, cellulolytic and amylolytic capabilities were not detected. Yeast presence among fruits varied, with cidra (Citrus medica) and ungurahui (Oenocarpus bataua) having the highest number of species associated. This investigation broadens the understanding and possible biotechnological uses of yeast strains obtained from Amazonian native fruits. Yeasts, commonly present on the surface of fruits, are of industrial interest for the production of enzymes, flavorings, and bioactive compounds, and have many other scientific uses. The Amazonian rainforest may be a good source of new species or strains of yeasts, but their presence on Amazonian fruits is unknown. The aim of this study was to identify and characterize yeasts isolated from Amazonian native fruits using molecular and phenotypic methods. In total, 81 yeast isolates were obtained from 10 fruits species. Rep-PCR showed 29 strain profiles. Using a combination of restriction-fragment length polymorphism (RFLP) of the 5.8S-ITS region and D1/D2 sequencing of the 26S rRNA gene, 16 species were identified belonging to genera Candida, Debaryomyces, Hanseniaspora, Kodamaea, Martiniozyma, and Meyerozyma. The most dominant species were Candida tropicalis, Debaryomyces hansenii, Hanseniaspora opuntiae, and Hanseniaspora thailandica. H. opuntiae and H. thailandica showed the highest number of the strain profiles. Phenotypic profiles were variable between species, and even among strains. Screening for hydrolases showed lipolytic activity in only one isolate, while proteolytic, cellulolytic and amylolytic capabilities were not detected. Yeast presence among fruits varied, with cidra (Citrus medica) and ungurahui (Oenocarpus bataua) having the highest number of species associated. This investigation broadens the understanding and possible biotechnological uses of yeast strains obtained from Amazonian native fruits.
Àrees temàtiques: Microbiology (medical) Microbiology Medicine (miscellaneous) General medicine Applied microbiology and biotechnology
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1733-1331
Adreça de correu electrònic de l'autor: braulio.esteve@urv.cat braulio.esteve@urv.cat
Identificador de l'autor: 0000-0001-6467-7086 0000-0001-6467-7086
Data d'alta del registre: 2024-07-27
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Polish Journal Of Microbiology. 69 (3): 1-11
Referència de l'ítem segons les normes APA: Vegas C; Zavaleta AI; Canales PE; Esteve-Zarzoso B (2020). Yeasts Associated with Various Amazonian Native Fruits. Polish Journal Of Microbiology, 69(3), 1-11. DOI: 10.33073/pjm-2020-027
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2020
Tipus de publicació: Journal Publications
Repositori URV