Bacterial Community Assembly in a Typical Estuarine Marsh with Multiple Environmental Gradients.

ABSTRACT: Bacterial communities play essential roles in estuarine marsh ecosystems, but the interplay of ecological processes underlying their community assembly is poorly understood. Here, we studied the sediment bacterial communities along a linear gradient extending from the water-land junction toward a high marsh, using 16S rRNA gene amplicon sequencing. Bacterial community compositions differed significantly between sediment transects. Physicochemical properties, particularly sediment nutrient levels (i.e., total nitrogen [TN] and available phosphorus [AP]), as well as sediment physical structure and pH (P < 0.05), were strongly associated with the overall community variations. In addition, the topological properties of bacterial cooccurrence networks varied with distance to the water-la

SUBMITTER: Yao Z 

PROVIDER: S-EPMC6414364 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature