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- Title
Diversity of bacterial communities related to the nitrogen cycle in a coastal tropical bay.
- Authors
Gonzalez, Alessandra; Vieira, Ricardo; Cardoso, Alexander; Clementino, Maysa; Albano, Rodolpho; Mendonça-Hagler, Leda; Martins, Orlando; Paranhos, Rodolfo
- Abstract
A culture-independent molecular phylogenetic analysis was carried out to study for the first time the diversity of bacterial ammonia monooxygenase subunit A ( amoA) and nitrogenase reductase subunit H ( nifH) genes from Urca inlet at Guanabara Bay in Rio de Janeiro, Brazil. Most bacterial amoA and nifH sequences exhibited identities of less than 95% to those in the GenBank database revealing that novel ammonia-oxidizing bacteria and nitrogen-fixing microorganisms may exist in this tropical marine environment. The observation of a large number of clones related to uncultured bacteria also indicates the necessity to describe these microorganisms and to develop new cultivation methodologies.
- Subjects
GUANABARA Bay (Brazil); RIO de Janeiro (Brazil); BRAZIL; PHYLOGENY; MOLECULAR phylogeny; AMMONIA monooxygenase; NITROGENASE genetics
- Publication
Molecular Biology Reports, 2012, Vol 39, Issue 4, p3401
- ISSN
0301-4851
- Publication type
Article
- DOI
10.1007/s11033-011-1111-9