Spatiotemporal dynamics of the total and active Vibrio spp. populations throughout the Changjiang estuary in China,Environmental Microbiology

当前位置： X-MOL 学术 › Environ. Microbiol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Spatiotemporal dynamics of the total and active Vibrio spp. populations throughout the Changjiang estuary in China
Environmental Microbiology ( IF 4.3 ) Pub Date : 2020-07-06 , DOI: 10.1111/1462-2920.15152
Xiaolei Wang ₁ , Jiwen Liu _{1,

2,

3} , Jinchang Liang ₁ , Hao Sun ₁ , Xiao‐Hua Zhang _{1,

2,

3}

Affiliation

Vibrio is ubiquitously distributed in marine environments and is the most extensively characterized group within Gammaproteobacteria. Studies have investigated Vibrio spp. worldwide, but mostly focused on pathogenic vibrios and based on cultivation methods. Here, using a combination of molecular and culturing methods, we investigated the dynamics of the total and active Vibrio spp. throughout the Changjiang estuary in China. The total Vibrio abundance was higher in summer (~6.59 × 10³ copies ml⁻¹) than in winter (~1.85 × 10³ copies ml⁻¹) and increased from freshwater to saltwater (e.g. 8.04 × 10¹ to 9.39 × 10³ copies ml⁻¹ in summer). The ratio of active to total Vibrio (Va/Vt) revealed a high activity of vibrios, with remarkable differences between freshwater and saltwater (p < 0.05). Based on the community compositions of the culturable, total and active Vibrio, Vibrio atlanticus and Vibrio owensii were the dominant and active species in winter and summer, respectively. The distribution of Vibrio was governed by the effects of diverse environmental factors, such as temperature, salinity, pH, dissolved oxygen and SiO₃²⁻. Our study clearly demonstrates the spatiotemporal dynamics of total and active Vibrio spp. and lays a foundation for fully understanding the ecological roles of marine Vibrio.

更新日期：2020-07-06

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11