期刊论文

Regulation of two benthic bacteria on the recruitment of dormant Microcystis aeruginosa in upper sediment

Wang, Z.

中文

环境科学学报

0253-2468

2017

37

11

4160-4169

10.13671/j.hjkxxb.2017.0252

Supported by the National Natural Science Foundation of China (No.31472017, 31572619) and the Natural Science Foundation of Hunan Province(No.2016JJ2090).

本校为第一且通讯机构

将起始浓度不同的单菌和混合菌(Ba.sp06+Str.v13)分别与铜绿微囊藻休眠体及底泥共包埋,在梯度温度下进行24 d休眠体复苏实验.结果表明,温度低于10 ℃时,菌株Str.v13的生长增殖能力显著强于菌株Ba.sp06,各菌组休眠体复苏率最高为0.02%;在温度为15和20 ℃条件下,Ba.sp06与Str.v13两菌株浓度比例(以下简称“菌比”)为1∶1时混合菌组休眠体复苏率(15 ℃时为15.5%,20 ℃时为23.5%)与对照组无显著差异(15 ℃时为15%,20 ℃时为22.6%),但显著低于Ba.sp06单菌组(34.5%);菌比2∶1时Ba.sp06菌对Str.v13菌具抑制效应,混合菌组复苏率(15 ℃时为31%, 20 ℃时为35%)显著高于对照组,而与Ba.sp06单菌组无显著差异...

Benthic bacteria play an important role in nutrient cycling and stability of aquatic ecosystem. Understanding the role of benthic bacteria in recruitment of M. aeruginosa from sediment is essential for effective control of toxic blooming. In this study, we investigated the effect of different ratio of two benthic bacteria on recruitment of dormant M. aeruginosa cells from sediment under different temperature conditions. When benthic bacterial strains Ba.sp06 and Str.v13 were inoculated at the initial ratio of 1: 1 into the sediment embedded wit...