Allelopathic Interactions Between the Tropical Macrophyte Enhalus acoroides and Epibenthic HAB Dinoflagellate Prorocentrum concavum

作     者：LIU Hui ZOU Jian XIE Hang ZHENG Chengzhi LU Songhui LIU Hui;ZOU Jian;XIE Hang;ZHENG Chengzhi;LU Songhui

作者机构：Research Center of Harmful Algae and Marine BiologyCollege of Life Science and TechnologyJinan UniversityGuangzhou 510362China Southern Marine Science and Engineering Guangdong LaboratoryZhuhai 519000China Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education InstitutesJinan UniversityGuangzhou 510632China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2022年第21卷第6期

页      面：1656-1668页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.42076144,41876173) the Special Foundation for National Science and Technology Basic Research Program of China(No.2018FY100200) 

主　　题：allelopathy Prorocentrum concavum Enhalus acoroides growth photosynthesis inhibition 

摘      要：A benthic harmful dinoflagellate bloom caused by Prorocentrum concavum occurred at Xincun Bay,a lagoon characterized by a tropical seagrass ecosystem in the southern China,in summer *** abiotic and biotic factors may affect the abundance dynamics of *** of the biotic factors,allelopathy,is known to be especially common among aquatic species and is suggested to be an economical and environmentally-friendly way to eliminate Benthic Harmful Algal Blooms(BHABs).To investigate the possible allelopathic interactions between seagrasses and ***,a field survey was conducted to study the cell densities of *** on four major substrates over 12 *** laboratory,fresh Enhalus acoroides leaves and a crude aqueous extract of dry *** leaves were added to the culture of *** respectively to assess possible effects on the growth and photosynthesis activities of *** *** results showed that the average abundance of *** on *** leaves was statistically lower than that on the sediment outside the seagrass meadow and that on Thalassia hemperichii *** the growth and photosynthesis activities of *** cells were inhibited in the two experiments,which can be attributed to the release and production of allelochemicals by *** results offer new insights into the interaction between the submerged seagrass *** and the benthic harmful algal bloom dinoflagellate ***,which can influence the abundance dynamics of *** and provide an alternative for reducing potential threat of BHABs.