title: Yeasts from macroalgae and lichens that inhabit the South Shetland Islands, Antarctica.
abstract: Antarctic terrestrial ecosystems are largely dominated by lichens, while shallow coastal environments are mainly covered by macroalgae. The aim of this study was to isolate and to evaluate the diversity of yeasts in different species of macroalgae and lichens collected in South Shetland Islands, Antarctica. A total of 405 yeasts were recovered (205 from macroalgae and 200 from lichens). The yeast community from macroalgae was most diversity than the yeast community from lichen. The dominance index was similar for both substrates. A total of 24 taxa from macroalgae and 18 from lichens were identified, and only 5 were common to both substrates. Metschnikowia australis, Mrakia sp., Rhodotorula glacialis and Glaciozyma litorale were the most abundant yeasts in macroalgae and Cryptococcus victoriae, Rhodotorula laryngis, Rhodotorula arctica, Trichosporon sp. 1 and Mrakia sp. were the most abundant in lichens. Based on molecular and phylogenetic analyses, four yeast from macroalgae and six from lichens were considered potential new species. This is the first study to report the yeast communities from the Antarctic macroalgae Himantothallus grandifolius and lichen Ramalina terebrata. Results suggest that Antarctic phyco and lichensphere represent a huge substrate for cold-adapted yeasts and enhanced the knowledge of the microbiota from extreme environments.
authors: Divisão de Recursos Microbianos, Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Universidade Estadual de Campinas, Paulínia, SP, Brazil.|Universidade Federal de Alagoas, Campus Arapiraca, Arapiraca, Alagoas, Brazil.
authors: Alysson Wagner Fernandes
authors: AWF
authors: Duarte
authors: Instituto Latino Americano de Ciências da Vida e da Natureza, Centro Interdisciplinar de Ciências da Vida, Universidade Federal da Integração Latino-Americana, Foz do Iguaçu, Paraná, Brazil.
authors: Michel Rodrigo Zambrano
authors: MRZ
authors: Passarini
authors: Divisão de Recursos Microbianos, Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Universidade Estadual de Campinas, Paulínia, SP, Brazil.
authors: Tiago Palladino
authors: TP
authors: Delforno
authors: Campus Paranaguá, Laboratório de Ficologia e Qualidade de Água Marinha, Universidade Estadual do Paraná, Foz do Iguaçu, Paraná, Brazil.
authors: Franciane Maria
authors: FM
authors: Pellizzari
authors: Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, La Rochelle Cedex 01, 17042, France.|Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil.
authors: Caio Vinicius Zecchin
authors: CVZ
authors: Cipro
authors: Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil.
authors: Rosalinda Carmela
authors: RC
authors: Montone
authors: Laboratório de Ornitologia e Animais Marinhos, Universidade do Vale do Rio dos Sinos São Leopoldo, UNISINOS - RS, São Leopoldo, Brazil.
authors: Maria Virginia
authors: MV
authors: Petry
authors: Universidade de Santa Cruz do Sul, Santa Cruz do Sul, Rio Grande do Sul, Brazil.
authors: Jair
authors: J
authors: Putzke
authors: Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
authors: Luiz Henrique
authors: LH
authors: Rosa
authors: Divisão de Recursos Microbianos, Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Universidade Estadual de Campinas, Paulínia, SP, Brazil.|Laboratório de Micologia Ambiental e Industrial, Departamento de Bioquímica e Microbiologia, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho, Rio Claro, SP, Brazil.
authors: Lara Durães
authors: LD
authors: Sette