Environmental factors that regulate Vibrio spp.abundance and community structure in tropical waters  

作　　者：Yi You Wong Choon Weng Lee Chui Wei Bong Joon Hai Lim Ching Ching Ng Kumaran Narayanan Edmund Ui Hang Sim Ai-jun Wang 

机构地区：[1]Laboratory of Microbial Ecology,Institute of Biological Sciences,Faculty of Science,Universiti Malaya,Kuala Lumpur 50603,Malaysia [2]Institute of Ocean and Earth Sciences,Universiti Malaya,Kuala Lumpur 50603,Malaysia [3]Institute for Advanced Studies,Universiti Malaya,Kuala Lumpur 50603,Malaysia [4]School of Science,Monash University Malaysia,Bandar Sunway,47500 Subang Jaya,Selangor,Malaysia [5]Faculty of Resource Science and Technology,University Malaysia Sarawak,Kota Samarahan,Sarawak 94300,Malaysia [6]Laboratory of Coastal and Marine Geology,Ministry of Natural Resources,Third Institute of Oceanography,Xiamen,Fujian 361005,China [7]Fujian Provincial Key Laboratory of Marine Physical and Geological Processes,Xiamen,Fujian 361005,China

出　　处：《Anthropocene Coasts》2024年第1期296-311,共16页人新世海岸(英文)

基　　金：supported by the Ministry of Higher Education Malaysia(HiCoE grant Phase I fund IOES-2014D and IOES-2014E,and Phase II fund IOES-2014C);the National Natural Science Foundation of China(Contract No:41961144022);also by Universiti Malaya(PG279-2016A and RU009F-2020).

摘　　要：Vibrio spp.is a group of heterotrophic bacteria that are ubiquitous in marine habitats,with various ecological and clinical importance.This study investigated the environmental factors that regulate Vibrio spp.dynamics in various tropical marine habitats,including nearshore(an estuary and a coastal beach)and offshore transects located northwest and southeast of Peninsular Malaysia,while focusing on the distribution of attached and free-living Vibrio spp.,population growth,and community composition.The results showed that>85%of the Vibrio spp.in nearshore waters occurred in attached form and correlated positively to total suspended solids(TSS)and Chlorophyll a(Chl a)concentrations.On the other hand,Vibrio spp.growth rates were positively correlated to dissolved organic carbon(DOC)concentrations,but negatively correlated to total bacterial counts,likely due to resource competition.In addition,high-throughput sequencing of 16S rRNA V3-V4 region showed that Vibrio spp.in these tropical waters contributed<1−18%of the whole bacterioplankton community,and the six major Vibrio spp.taxa were V.alginolyticus group,V.brasiliensis,V.caribbeanicus,V.hepatarius group,V.splendidus group and V.thalassae.db-RDA(cumulative variance explicated=93.53%)further revealed the influence of TSS,DOC,and dissolved organic nitrogen(DON)to the Vibrio spp.community profiles.The study highlighted the importance of suspended solids(TSS and Chl a)and dissolved organic nutrients(DOC and DON)towards Vibrio spp.dynamics in tropical marine waters.

关 键 词：Vibrio spp. Growth rate ATTACHED FREE-LIVING Diversity Driving factors 

分 类 号：P73[天文地球—海洋科学]