Capítulo de Libro
Yeast Activities Involved in Carbon and Nitrogen Cycles in Antarctica
Título del libro: The Ecological Role of Micro-organisms in the Antarctic Environment
Vero, Silvana; Garmendia, Gabriela; Martinez, Adalgisa; Cavello, Ivana Alejandra
; Wisniewski, Michael
![Icon](/themes/CONICETDigital/images/conicet.png)
Otros responsables:
Castro Sowinski, Susana
Fecha de publicación:
2019
Editorial:
Springer Nature Switzerland AG
ISBN:
978-3-030-02786-5
Idioma:
Inglés
Clasificación temática:
Resumen
Antarctica and sub-Antarctic regions are characterized by extreme conditions for life such as low temperatures and nutrient availability, high solar irradiation, and dryness; however, microorganisms from the three domains of life have been found as common inhabitants of soils and waters from those zones. Despite bacteria being the most numerous microorganisms in those habitats, a great diversity of psychrotrophic and psychrophilic yeasts have been also isolated and described. Yeasts, as chemoheterotrophic microorganisms, are involved in the recycling and mineralization of organic matter, playing an important role in carbon cycle. The range of organic substrates that they can degrade is wide. Their ability to produce extracellular hydrolytic enzymes involved in the breakdown of natural organic polymers has been well documented. Moreover, they can also use other substrates as n-alkanes or polyphenolic compounds as a sole carbon and energy source, so they could play a role in bioremediation in human-impacted areas. Most yeast obtain their energy by aerobic respiration; however, in anaerobic conditions, some of them carry out fermentation or anaerobic respiration. The use of nitrate or nitrite as the final electron acceptor provides nitrous oxide (a greenhouse gas) as an end product. Thus, those yeasts can be considered as denitrifying microorganisms playing an important role in the nitrogen cycle.
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Capítulos de libros(CINDEFI)
Capítulos de libros de CENT.DE INV EN FERMENTACIONES INDUSTRIALES (I)
Capítulos de libros de CENT.DE INV EN FERMENTACIONES INDUSTRIALES (I)
Citación
Vero, Silvana; Garmendia, Gabriela; Martinez, Adalgisa; Cavello, Ivana Alejandra; Wisniewski, Michael; Yeast Activities Involved in Carbon and Nitrogen Cycles in Antarctica; Springer Nature Switzerland AG; 2019; 45-64
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