Bacterial interactions and implications for oil biodegradation process in mangrove sediments. Issue 1 (15th May 2017)

• Record Type: Journal Article
• Authors: Grativol, Adriana Daudt; Marchetti, Albany A; Wetler-Tonini, Rita M; Venancio, Thiago M; Gatts, Carlos EN; Thompson, Fabiano L; Rezende, Carlos E
• Is Part Of: Marine pollution bulletin. Volume 118:Issue 1/2(2017)
• Page Start: 221
• Page End: 228
• Publication Date: 2017-05-15
• Subjects: Oil biodegradation -- Mangrove -- Ecological survey -- Microbial Resource Management Framework -- T-RFLP; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2017.02.052
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: Mangrove sediment harbors a unique microbiome and is a hospitable environment for a diverse group of bacteria capable of oil biodegradation. Our goal was to understand bacterial community dynamics from mangrove sediments contaminated with heavy-oil and to evaluate patterns potentially associated with oil biodegradation is such environments. We tested the previously proposed hypothesis of a two-phase pattern of petroleum biodegradation, under which key events in the degradation process take place in the first three weeks after contamination. Two sample sites with different oil pollution histories were compared through T-RFLP analyses and using a pragmatic approach based on the Microbial Resource Management Framework. Our data corroborated the already reported two-phase pattern of oil biodegradation, although the original proposed explanation related to the biophysical properties of the soil is questioned, opening the possibility to consider other plausible hypotheses of microbial interactions as the main drivers of this pattern.