Spatial heterogeneity of Vibrio spp. in sediments of Chinese marginal seas.

Spatial heterogeneity of Vibrio spp. in sediments of Chinese marginal seas. Appl Environ Microbiol. 2019 Mar 15;: Authors: Wang X, Liu J, Li B, Liang J, Sun H, Zhou S, Zhang XH Abstract Vibrio spp. are ubiquitous marine bacteria with high metabolism flexibility and genome plasticity. Previous studies have revealed dynamics of planktonic vibrios in relation to environmental forces such as temperature and salinity. However, little is known about the Vibrio ecology in benthic environments. Here, we elucidated the abundance, diversity and spatial distribution of Vibrio spp. in sediments along the Chinese marginal seas, with a high spatial range from the north to south covering the Yellow Sea (YS), East China Sea (ECS) and South China Sea (SCS). Quantitative analysis showed that Vibrio was most abundant in SCS (∼ 9.04 × 105 copies/g), compared to YS (∼ 1.00 × 105 copies/g) and ECS (∼ 8.86 × 105 copies/g). Vibrio community compositions derived from Illumina sequencing of Vibrio-specific 16S rRNA gene varied significantly between sampling areas, which was reflected by a strong distance-decay pattern. The spatial distribution of Vibrio was governed by a joint effect of spatial and environmental factors (especially temperature, salinity and SiO3 2-), and their respect pure effect explained only a small fraction of the community variation. Moreover, we identified the most prominent OTUs that were partitioned in these sea areas. Wherea...
Source: Applied and Environmental Microbiology - Category: Microbiology Authors: Tags: Appl Environ Microbiol Source Type: research