| Content Provider |
World Health Organization (WHO)-Global Index Medicus |
| Author |
Normando, Leonardo Ribeiro Oliveira Melo, Vânia Maria Maciel Agnez-Lima, Lucymara Fassarella Gerber, Alexandra Lehmkuhl de Vasconcelos, Ana Tereza Ribeiro Tavares, Tallita Cruz Lopes |
| Description |
Author Affiliation: Tavares TC ( Instituto de Ciências do Mar, Av. Abolição, 3207, 60170-151 Fortaleza, Ceará, Brazil); Normando LR ( Laboratório de Ecologia Microbiana e Biotecnologia, Departamento de Biologia, Bloco 909, Centro de Ciências, Campus do Pici, Universidade Federal do Ceará, Av. Humberto Monte, 2775, 60440-554 Fortaleza, Ceará, Brazil.); de Vasconcelos AT ( Laboratório de Bioinformática, Unidade de Genômica Computacional Darcy Fontoura de Almeida, Laboratório Nacional de Computação Científica, 25651-075, Petrópolis, Rio de Janeiro, Brazil.); Gerber AL ( Laboratório de Bioinformática, Unidade de Genômica Computacional Darcy Fontoura de Almeida, Laboratório Nacional de Computação Científica, 25651-075, Petrópolis, Rio de Janeiro, Brazil.); Agnez-Lima LF ( Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, Rio Grande do Norte, Brazil.); Melo VM ( Instituto de Ciências do Mar, Av. Abolição, 3207, 60170-151 Fortaleza, Ceará, Brazil) |
| Abstract |
Maritime ports are anthropogenic interventions capable of causing serious alterations in coastal ecosystems. In this study, we examined the benthic microbial diversity and community structure under the influence of two maritime ports, Mucuripe (MUC) and Pecém (PEC), at Equatorial Atlantic Ocean in Northeast Brazil. Those seaports differ in architecture, time of functioning, cargo handling and contamination. The microbiomes from MUC and PEC were also compared in silico to 11 other globally distributed marine microbiomes. The comparative analysis of operational taxonomic units (OTUs) retrieved by PCR-DGGE showed that MUC presents greater richness and ß diversity of Bacteria and Archaea than PEC. In line with these results, metagenomic analysis showed that MUC and PEC benthic microbial communities share the main common bacterial phyla found in coastal environments, although can be distinguish by greater abundance of Cyanobacteria in MUC and Deltaproteobacteria in PEC. Both ports differed in Archaea composition, being PEC port sediments dominated by Thaumarchaeota. The microbiomes showed little divergence in their potential metabolic pathways, although shifts on the microbial taxonomic signatures involved in nitrogen and sulphur metabolic pathways were observed. The comparative analysis of different benthic marine metagenomes from Brazil, Australia and Mexico grouped them by the geographic location rather than by the type of ecosystem, although at phylum level seaport sediments share a core microbiome constituted by Proteobacteria, Cyanobacteria, Actinobacteria, Tenericuteres, Firmicutes, Bacteriodetes and Euryarchaeota. Our results suggest that multiple physical and chemical factors acting on sediments as a result of at least 60years of port operation play a role in shaping the benthic microbial communities at taxonomic level, but not at functional level. |
| ISSN |
00489697 |
| Journal |
Science of The Total Environment |
| Volume Number |
557-558 |
| e-ISSN |
18791026 |
| Language |
English |
| Publisher |
Elsevier |
| Publisher Date |
2016-07-01 |
| Publisher Place |
Netherlands |
| Access Restriction |
One Nation One Subscription (ONOS) |
| Subject Keyword |
Discipline Environmental Science |
| Content Type |
Text |
| Resource Type |
Article |
| Subject |
Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
