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Microbial diversity of soils on the banks of the Solimões and Negro rivers, state of Amazonas, Brazil.

da Costa da Santos EK, Honda RT, Nozawa SR, Ferreira-Nozawa MS - Genet. Mol. Biol. (2012)

Bottom Line: Analysis of bacterial diversity in soils along the banks of the Solimões and Negro rivers, state of Amazonas, Brazil, was by partial sequencing of the genes codifying the rDNA16S region.Diversity of operational taxonomic units (OTU) and of the divergent sequences obtained were applied in comparative analysis of microbiological diversity in the two environments, based on richness estimators and OTU diversity indices.The higher OTU diversity in the Solimões was based on the higher number of parameters that evoke this.

View Article: PubMed Central - PubMed

Affiliation: Laboratório de Expressão Gênica, Universidade Nilton Lins, Manaus, AM, Brazil.

ABSTRACT
Analysis of bacterial diversity in soils along the banks of the Solimões and Negro rivers, state of Amazonas, Brazil, was by partial sequencing of the genes codifying the rDNA16S region. Diversity of operational taxonomic units (OTU) and of the divergent sequences obtained were applied in comparative analysis of microbiological diversity in the two environments, based on richness estimators and OTU diversity indices. The higher OTU diversity in the Solimões was based on the higher number of parameters that evoke this. The interaction between the nucleotide sequences of bacteria inhabiting the two riverine environments indicated that the two microrganism communities are similar in composition.

No MeSH data available.


Negro River bank showing cliff where soil samples were collected. Photos: Dr. Rubens T. Honda.
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f2-gmb-35-1-134: Negro River bank showing cliff where soil samples were collected. Photos: Dr. Rubens T. Honda.

Mentions: Soil-samples were collected along the banks of SMS and NMS, upstream of the confluence of both, in an area little affected by anthropic influence, and west of Manaus, capital of the state of Amazonas. All samples were collected during the draught period, on 08/02/2008. SMS samples were collected at around 10 am (S 03° 13’ 20.4”; W 59° 59’ 16.6”), while those for NMS were obtained at around 12 am (S 03° 08’ 12.1”; W 60° 08’ 04.9”) (Figures 1 and 2).


Microbial diversity of soils on the banks of the Solimões and Negro rivers, state of Amazonas, Brazil.

da Costa da Santos EK, Honda RT, Nozawa SR, Ferreira-Nozawa MS - Genet. Mol. Biol. (2012)

Negro River bank showing cliff where soil samples were collected. Photos: Dr. Rubens T. Honda.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3313502&req=5

f2-gmb-35-1-134: Negro River bank showing cliff where soil samples were collected. Photos: Dr. Rubens T. Honda.
Mentions: Soil-samples were collected along the banks of SMS and NMS, upstream of the confluence of both, in an area little affected by anthropic influence, and west of Manaus, capital of the state of Amazonas. All samples were collected during the draught period, on 08/02/2008. SMS samples were collected at around 10 am (S 03° 13’ 20.4”; W 59° 59’ 16.6”), while those for NMS were obtained at around 12 am (S 03° 08’ 12.1”; W 60° 08’ 04.9”) (Figures 1 and 2).

Bottom Line: Analysis of bacterial diversity in soils along the banks of the Solimões and Negro rivers, state of Amazonas, Brazil, was by partial sequencing of the genes codifying the rDNA16S region.Diversity of operational taxonomic units (OTU) and of the divergent sequences obtained were applied in comparative analysis of microbiological diversity in the two environments, based on richness estimators and OTU diversity indices.The higher OTU diversity in the Solimões was based on the higher number of parameters that evoke this.

View Article: PubMed Central - PubMed

Affiliation: Laboratório de Expressão Gênica, Universidade Nilton Lins, Manaus, AM, Brazil.

ABSTRACT
Analysis of bacterial diversity in soils along the banks of the Solimões and Negro rivers, state of Amazonas, Brazil, was by partial sequencing of the genes codifying the rDNA16S region. Diversity of operational taxonomic units (OTU) and of the divergent sequences obtained were applied in comparative analysis of microbiological diversity in the two environments, based on richness estimators and OTU diversity indices. The higher OTU diversity in the Solimões was based on the higher number of parameters that evoke this. The interaction between the nucleotide sequences of bacteria inhabiting the two riverine environments indicated that the two microrganism communities are similar in composition.

No MeSH data available.