FUNCTIONAL AND BIOGEOGRAPHIC PROFILES OF THE MICROBIOME PRESENT IN SNOW FROM MARTEL INLET, KING GEORGE ISLAND

Jéssica Bianca da Silva; Valeria Maia Merzel

Todos os Trabalhos

Trabalho

Título do Trabalho

FUNCTIONAL AND BIOGEOGRAPHIC PROFILES OF THE MICROBIOME PRESENT IN SNOW FROM MARTEL INLET, KING GEORGE ISLAND

Autores

Jéssica Bianca da Silva
Valeria Maia Merzel

Modalidade

Apresentação de Pôster

Área temática

Genética de Microrganismos

Data de Publicação

09/06/2023

País da Publicação

Brasil

Idioma da Publicação

Inglês

Página do Trabalho

https://www.even3.com.br/anais/v-gbmeeting/609484-functional-and-biogeographic-profiles-of-the-microbiome-present-in-snow-from-martel-inlet-king-george-island

ISBN

978-85-5722-785-9

Palavras-Chave

Biodegradation pathways, snow, metagenomics, xenobiotics, King George Island

Resumo

Glacial ecosystems are the most important in Antarctica, since more than 99% of the continent is permanently covered by ice. Snow, is one of the main habitats of glacial ecosystems and dominated by microbial life. This habitat is also directly related to the atmosphere due to the particulate materials and cells that are deposited on glaciers and soils. Long-range organic pollutants transported from different parts of the world through the atmosphere and local pollutants generated by human activities on the continent, especially on the South Shetland Islands, are deposited through the snow on the glaciers. Due to exposure to xenobiotics, many psychrophilic and psychrotolerant Antarctic microorganisms are able to degrade various xenobiotics often using them as a carbon source. This present project aims to evaluate the taxonomic and functional diversity of the snow microbiome of Martel Inlet on King George Island, with emphasis on the degradation pathways of organic pollutants such as pesticides, hydrocarbons and organochlorine compounds through metagenomic approach based on shotgun sequencing of environmental samples. Genes related to the degradation of ethylbenzene, polycyclic aromatic hydrocarbons, alkanes, toluene, naphthalene, xylene, styrene, dioxin and atrazine were identified in the metagenomes. The genes associated with the degradation of xenobiotics found in this project will also be compared with microbiome datasets from other extreme and non-extreme regions available in databases for comparative analysis on a global scale. The results of these analyses will provide insight into the degree of differentiation and endemism of the degradation pathways. Considering the different sources of organic pollutants in Antarctic glaciers, studies about the potential of indigenous microorganisms to detoxify or mineralize these compounds may provide important information of ecological relevance, such as mechanisms of microbial adaptation in oligotrophic environments and biological degradation of pollutants, since microorganisms are the main agents of biogeochemical cycling in the Antarctic environment.

Título do Evento: V GBMeeting
Cidade do Evento: Campinas
Título dos Anais do Evento: Anais do GBMeeting: Encontro Anual da Pós Graduação em Genética e Biologia Molecular da UNICAMP
Nome da Editora: Even3
Meio de Divulgação: Meio Digital

Como citar

SILVA, Jéssica Bianca da; MERZEL, Valeria Maia. FUNCTIONAL AND BIOGEOGRAPHIC PROFILES OF THE MICROBIOME PRESENT IN SNOW FROM MARTEL INLET, KING GEORGE ISLAND.. In: Anais do GBMeeting: Encontro Anual da Pós Graduação em Genética e Biologia Molecular da UNICAMP. Anais...Campinas(SP) Unicamp, 2023. Disponível em: https//www.even3.com.br/anais/v-gbmeeting/609484-FUNCTIONAL-AND-BIOGEOGRAPHIC-PROFILES-OF-THE-MICROBIOME-PRESENT-IN-SNOW-FROM-MARTEL-INLET-KING-GEORGE-ISLAND. Acesso em: 19/04/2025