scholarly journals COMPARISON OF MICROBIAL COMMUNITY STRUCTURE IN COASTAL MARINE SEDIMENTS OF THREE AUSTRAL SUMMERS IN ADMIRALTY BAY, KING GEORGE ISLAND

2016 ◽  
pp. 74-77
Author(s):  
Diego Castillo Franco ◽  
Rubens Tadeu Delgado Duarte ◽  
Amanda Gonçalves Bendia ◽  
Cristina Rossi Nakayama ◽  
Vivian Helena Pellizari
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Marine Sediments ◽  
Microbial Community Structure ◽  
King George Island ◽  
Coastal Marine Sediments ◽  
Admiralty Bay ◽  
Coastal Marine

Microbial community structure and functioning in marine sediments associated with diffuse hydrothermal venting assessed by integrated meta-omics

2013 ◽  
Vol 16 (9) ◽  
pp. 2699-2710 ◽  
Author(s):  
Tim Urich ◽  
Anders Lanzén ◽  
Runar Stokke ◽  
Rolf B. Pedersen ◽  
Christoph Bayer ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Marine Sediments ◽  
Microbial Community Structure ◽  
Hydrothermal Venting

scholarly journals Microarray-Based Characterization of Microbial Community Functional Structure and Heterogeneity in Marine Sediments from the Gulf of Mexico

2008 ◽  
Vol 74 (14) ◽  
pp. 4516-4529 ◽  
Author(s):  
Liyou Wu ◽  
Laurie Kellogg ◽  
Allan H. Devol ◽  
James M. Tiedje ◽  
Jizhong Zhou
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Gulf Of Mexico ◽  
Marine Sediments ◽  
Microbial Community Structure ◽  
Metal Resistance ◽  
Functional Gene ◽  
Functional Genes ◽  
Contaminant Degradation ◽  
Carbon Degradation

ABSTRACT Marine sediments of coastal margins are important sites of carbon sequestration and nitrogen cycling. To determine the metabolic potential and structure of marine sediment microbial communities, two cores were collected each from the two stations (GMT at a depth of 200 m and GMS at 800 m) in the Gulf of Mexico, and six subsamples representing different depths were analyzed from each of these two cores using functional gene arrays containing ∼2,000 probes targeting genes involved in carbon fixation; organic carbon degradation; contaminant degradation; metal resistance; and nitrogen, sulfur, and phosphorous cycling. The geochemistry was highly variable for the sediments based on both site and depth. A total of 930 (47.1%) probes belonging to various functional gene categories showed significant hybridization with at least 1 of the 12 samples. The overall functional gene diversity of the samples from shallow depths was in general lower than those from deep depths at both stations. Also high microbial heterogeneity existed in these marine sediments. In general, the microbial community structure was more similar when the samples were spatially closer. The number of unique genes at GMT increased with depth, from 1.7% at 0.75 cm to 18.9% at 25 cm. The same trend occurred at GMS, from 1.2% at 0.25 cm to 15.2% at 16 cm. In addition, a broad diversity of geochemically important metabolic functional genes related to carbon degradation, nitrification, denitrification, nitrogen fixation, sulfur reduction, phosphorus utilization, contaminant degradation, and metal resistance were observed, implying that marine sediments could play important roles in biogeochemical cycling of carbon, nitrogen, phosphorus, sulfate, and various metals. Finally, the Mantel test revealed significant positive correlations between various specific functional genes and functional processes, and canonical correspondence analysis suggested that sediment depth, PO4 3−, NH4 +, Mn(II), porosity, and Si(OH)4 might play major roles in shaping the microbial community structure in the marine sediments.

Effect of plankton-derived organic matter on the microbial community of coastal marine sediments

2014 ◽  
Vol 461 ◽  
pp. 257-266 ◽  
Author(s):  
Paula Carpintero de Moraes ◽  
Diego Castillo Franco ◽  
Vivian Helena Pellizari ◽  
Paulo Yukio Gomes Sumida
Keyword(s):  
Organic Matter ◽  
Microbial Community ◽  
Marine Sediments ◽  
Coastal Marine Sediments ◽  
Coastal Marine

The First Use of Biofilm Microbial Community Structure as an Indicator of Impact of Two Dams on the Elwha River (Washington)

2009 ◽  
Vol 27 (4) ◽  
pp. 385-387
Author(s):  
W. D. Eaton ◽  
B. Wilmot ◽  
E. Epler ◽  
S. Mangiamelli ◽  
D. Barry
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Elwha River
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