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Existence of rare actinobacterial forms in the Indian sector of Southern Ocean: 16 S rRNA based metabarcoding study.
Manikkam, Radhakrishnan; Kaari, Manigundan; Baskaran, Abirami; Ramakodi, Meganathan P; Venugopal, Gopikrishnan; Bhaskar, Parli Venkateswaran.
Afiliação
  • Manikkam R; Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600 119, India. mrkactinos@gmail.com.
  • Kaari M; Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600 119, India.
  • Baskaran A; Department of Applied Bioscience, Dong-A University, Busan, 49315, South Korea.
  • Ramakodi MP; Centre for Drug Discovery and Development, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600 119, India.
  • Venugopal G; Department of Food Chemistry and Biocatalysis, Faculty of Biotechnology and Food Science, Discipline of Biotechnology, Wroclaw University of Environmental and Life Sciences, Wroclaw, 50-375, Poland.
  • Bhaskar PV; CSIR-National Environmental Engineering Research Institute (NEERI), Hyderabad Zonal Centre, IICT Campus, Hyderabad, India. pr.meganathan@neeri.res.in.
Braz J Microbiol ; 55(3): 2363-2370, 2024 Sep.
Article em En | MEDLINE | ID: mdl-38987524
ABSTRACT
The significance of the Southern Ocean (SO) as a sink of atmospheric CO2 and other greenhouse gases is well established. Earlier studies have highlighted the role of microbes in various SO ecosystem processes. However, the diversity and role of actinobacteria in the Indian sector of SO (ISO) water and sediments are unknown. This study aimed to analyze the diversity of actinobacteria in water and sediment samples of SO based on amplicon microbiome analyses. The taxonomic analysis identified a total number of 27 phyla of which Proteobacteria (40.2%), Actinobacteria (13.6%), and Firmicutes (8.7%) were found to be dominant. The comparative study of water and sediment samples revealed the dominance of different actinobacteria in water and sediments. While the order Streptomycetales was dominant in the water samples, Micrococcales was found to be dominant in the sediment samples. The genus level analysis found the presence of eight and seventeen genera in the sediment and water samples, respectively. The genus Streptomyces, Saccharopolyspora, Nocardioides, Sva0996 marine group, and Mycobacterium were seen both in sediment and water samples. Marmoricola, Ilumatobacter, and Glaciihabitans were observed only in sediment samples whereas Rhodococcus, Corynebacterium, Micrococcus, Turicella, Pseudonocardia, Bifidobacterium, Nesterenkonia, Collinsella, Knoellia, Cadidatus, Actinomarina, Libanicoccus and Cutibacterium were noticed exclusively in water samples. Our study also emphasizes the need for further detailed study to understand the links between actinobacterial diversity and their ecological functions in the ISO. The available metabarcoding data paves the way for future research in cultivable forms of novel and rare Actinobacteria for their bioprospecting applications.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Filogenia / Água do Mar / RNA Ribossômico 16S / Actinobacteria / Sedimentos Geológicos / Código de Barras de DNA Taxonômico País/Região como assunto: Asia Idioma: En Revista: Braz J Microbiol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Índia País de publicação: Brasil
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Filogenia / Água do Mar / RNA Ribossômico 16S / Actinobacteria / Sedimentos Geológicos / Código de Barras de DNA Taxonômico País/Região como assunto: Asia Idioma: En Revista: Braz J Microbiol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Índia País de publicação: Brasil