文献类型：期刊文献

英文题名：Allelopathic effect of Oocystis borgei culture on Microcystis aeruginosa

作者：Wang, Xiaoqian[1,2,3];Zhang, Yulei[1,2,3];Li, Changling[1,2,3];Huang, Xianghu[1,2,3];Li, Feng[1,2,3];Wang, Xinyu[1];Li, Guanbao[1]

机构：[1]Guangdong Ocean Univ, Fishery Coll, Dept Aquaculture, Zhanjiang 524088, Guangdong, Peoples R China;[2]Engn Technol Res Ctr Algae Breeding & Applicat, Zhanjiang, Peoples R China;[3]Guangdong Ocean Univ, Shenzhen Res Inst, Shenzhen 518108, Peoples R China

年份：2022

卷号：43

期号：11

起止页码：1662

外文期刊名：ENVIRONMENTAL TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000592596600001)、、EI(收录号：20204809562019)、Scopus(收录号：2-s2.0-85096750294)、WOS

基金：This work was supported by the Key Project of 'Blue Granary Science and Technology Innovation' of the Ministry of Science and Technology: [Grant Number 2020YFD0900205]; Research and Demonstration of Key Technologies in The Industrialization of Active Microalgae Products: [Grant Number KY 20180112].

语种：英文

外文关键词：Oocystis borgei; Microcystis aeruginosa; physiological characters; allelopathy; algal bloom

外文摘要：This study evaluated the possibility of using Oocystis borgei to prevent and control harmful algae blooms. Firstly, Microcystis aeruginosa and O. borgei were co-cultured to assess the competition for nutrients between them. Different physiological and biochemical parameters, such as growth, cell membrane permeability and esterase activities were determined in exudate culture experiment to investigate allelopathic effects of O. borgei culture and mixed cultures (O. borgei and M. aeruginosa) at different growth phase on harmful microalgae (M. aeruginosa). Results showed that O. borgei could significantly inhibited M. aeruginosa when volume ratios were 4:1 and 1:1 (M. aeruginosa: O. borgei) in co-culture experiment. Further, it was found that the membrane system of M. aeruginosa was disintegrated by the culture filtrate of O. borgei at exponential phase. In addition, esterase activities and photorespiration were significantly inhibited. In conclusion, O. borgei exhibited different allelopathic effects at different growth phase. Its exponential phase showed a significant inhibitory effect, while no inhibitory effect was observed at the decline phase.