摘要
通过对藻类群体形成机制及其竞争优势的综述,系统阐述藻类群体在水华形成过程中的作用,为水华防治提供必要的基础。藻类群体的形成是水华发生的关键环节。藻类群体的形成机制多样,如胞外聚合物分泌、细胞表面粘附、附生菌作用、藻-藻相互作用等。影响藻类群体形成的因素包括非生物和生物因素,其中生物因素如浮游动物、异养细菌等,对藻类群体的形成起关键作用,而非生物因素如温度、光照、扰动、营养盐等,在这一过程中也具有重要影响。与单个细胞相比,藻类群体的形成使其在营养获取、光照和温度适应、化学胁迫防御以及躲避捕食等生态竞争中更具优势。
Algal blooms caused by eutrophication is a serious ecological environmental problem at home and abroad.The formation of algal colonies is a critical step in the occurrence of algal blooms.In this study,we systematically reviewed the formation mechanisms of algal colonies,elaborated on the role of algal colonization in algal bloom formation and described the competitive advantages of colonization.Our aim was to support effective mitigation of algal blooms.The formation mechanisms of algal colonies are diverse and typically depend on secretion of extracellular polymeric substances(EPS),cell surface adhesion,epiphytic bacteria,and algae-algae interactions.The influencing factors of algal colony formation have been classified as abiotic and biotic.Abiotic factors include nutrients,light intensity,temperature,disturbances,trace elements,microcystins,antibiotics and surface active agents.Biotic factors include zooplankton,aquatic plants and the heterotrophic bacteria that play a critical role in the formation of algal aggregates.Compared to a single algal cell,algal colonies have competitive advantages that include enhanced nutrient acquisition,improved light and temperature adaptation,and strengthened defenses against chemical stressors and predators.
作者
周诗颖
冯兵
王强
祝栋梁
夏威
姚娜
张萌
ZHOU Shiying;FENG Bing;WANG Qiang;ZHU Dongliang;XIA Wei;YAO Na;ZHANG Meng(School of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,P.R.China;Jiangxi Academy of Ecological Environment Science Research&Planning,Nanchang 330039,P.R.China;Environmental and Chemical Engineering College of Nanchang Hangkong University,Nanchang 330063,P.R.China)
出处
《水生态学杂志》
北大核心
2025年第4期276-286,共11页
Journal of Hydroecology
基金
江西省重点研发计划项目(20203BBG72W007)
江西省重大科技研发专项“揭榜挂帅”制项目(20213AAG01012)
江西省自然科学基金项目(20224BAB213032)。
关键词
水华
藻类群体
非生物因素
生物因素
竞争优势
algalbloom
algalcolony
abiotic factors
biotic factors
competitive advantage
作者简介
周诗颖,2000年生,女,硕士研究生,主要从事水体富营养化与水华防治研究。E-mail:zhoushiying0731@163.com;通信作者:张萌,1983年生,男,研究员,硕士生导师,主要从事新污染物防控,流域水污染控制工程,河湖富营养化与水华防治研究。E-mail:tomdeshiye@126.com。
