Significance of Vibrio species in the marine organic carbon cycle-A review  

作　　者：Xiaohua ZHANG Heyu LIN Xiaolei WANG Brian AUSTIN 

机构地区：[1]College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China [2]Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology,Qingdao 266071, China [3]Institute of Aquaculture, University of Stirling,Stirling FK9 4LA, UK

出　　处：《Science China Earth Sciences》2018年第10期1357-1368,共12页中国科学（地球科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 41730530, 91751202,41476112);the National Key Research and Development Program of China (Grant No. 2016YFA0601303)

摘　　要：The genus Vibrio,belonging to Gammaproteobacteria of the phylum Proteobacteria,is a genetically and ecologically diverse group of heterotrophic bacteria,that are ubiquitous in marine environments,especially in coastal areas.In particular,vibrios dominate,i.e.up to 10%of the readily culturable marine bacteria in these habitats.The distribution of Vibrio spp.is shaped by various environmental parameters,notably temperature,salinity and dissolved organic carbon.Vibriospp.may utilize a wide range of organic carbon compounds,including chitin(this may be metabolized by most Vibrio spp.),alginic acid and agar.Many Vibrio spp.have very short replication times(as short as～10 min),which could facilitate them developing into high biomass content albeit for relatively short durations.Although Vibriospp.usually comprise a minor portion(typically^1%of the total bacterioplankton in coastal waters)of the total microbial population,they have been shown to proliferate explosively in response to various nutrient pulses,e.g.,organic nutrients from algae blooms and iron from Saharan dust.Thus,Vibrio spp.may exert large impacts on marine organic carbon cycling especially in marginal seas.Genomics and related areas of investigation will reveal more about the molecular components and mechanisms involved in Vibrio-mediated biotransformation and remineralization processes.The genus Vibrio,belonging to Gammaproteobacteria of the phylum Proteobacteria,is a genetically and ecologically diverse group of heterotrophic bacteria,that are ubiquitous in marine environments,especially in coastal areas.In particular,vibrios dominate,i.e.up to 10%of the readily culturable marine bacteria in these habitats.The distribution of Vibrio spp.is shaped by various environmental parameters,notably temperature,salinity and dissolved organic carbon.Vibriospp.may utilize a wide range of organic carbon compounds,including chitin（this may be metabolized by most Vibrio spp.）,alginic acid and agar.Many Vibrio spp.have very short replication times（as short as～10 min）,which could facilitate them developing into high biomass content albeit for relatively short durations.Although Vibriospp.usually comprise a minor portion（typically^1%of the total bacterioplankton in coastal waters）of the total microbial population,they have been shown to proliferate explosively in response to various nutrient pulses,e.g.,organic nutrients from algae blooms and iron from Saharan dust.Thus,Vibrio spp.may exert large impacts on marine organic carbon cycling especially in marginal seas.Genomics and related areas of investigation will reveal more about the molecular components and mechanisms involved in Vibrio-mediated biotransformation and remineralization processes.

关 键 词：VIBRIO ECOLOGY Carbon cycle MARINE Organic carbon 

分 类 号：Q938.8[生物学—微生物学]