Vertical variation in Vibrio community composition in Sansha Yongle Blue Hole and its ability to degrade macromolecules
作者机构：College of Marine Life SciencesOcean University of China5 Yushan RoadQingdao 266003China Laboratory for Marine Ecology and Environmental ScienceQingdao National Laboratory for Marine Science and TechnologyQingdao 266237China Sansha Track Ocean Coral Reef Conservation Research InstituteSansha 573199China Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of Education/Institute for Advanced Ocean StudyOcean University of ChinaQingdao 266100China College of Marine GeosciencesOcean University of China.Qingdao 266100China Institute of Evolution and Marine BiodiversityOcean University of ChinaQingdao 266003China
出 版 物：《Marine Life Science & Technology》 (海洋生命科学与技术（英文）)
年 卷 期：2020年第2卷第1期
页 面：60-72页
核心收录：
学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0908[农学-水产] 070703[理学-海洋生物学] 07[理学] 0707[理学-海洋科学] 0836[工学-生物工程] 0713[理学-生态学]
基 金：This work was supported by the National Natural Science Foundation of China(Grants nos.41730530 91751202 and 41476112)
主 题：Vibrio community Vertical stratification Carbon source utilization Sansha Yongle Blue Hole
摘 要：With the advantages of wide distribution,fast growth,and broad metabolic spectrum to organic carbon compounds,Vibrio may play an important role in organic carbon ***,the ecological roles of Vibrio in many marine environments have not been ***,the world s deepest blue hole ,the Sansha Yongle Blue Hole(SYBH)in the South China Sea,which is a geographically semi-enclosed environment featuring unique chemical characters,was *** abundance,diversity and carbon source utilization capability of Vibrio were studied by quantification and high-throughput sequencing of Vibrio specific 16S rRNA genes and cultivation *** abundance of Vibrio in water column of the SYBH ranged from 3.78×10^4 to 7.35×10^616S rRNA gene copies L_***-living Vibrio was more abundant than particle-associated Vibrio(~1.20×10^6 versus-2.68×10^5 gene copies L_1),indicating that Vibrio prefers a free-living life *** Vibrio assemblages showed clear vertical stratification and could be divided into three groups:aerobic-transition,middle anaerobic and bottom anaerobic *** oxygen(DO),temperature,pH and salinity were the main environmental factors affecting the abundance and community *** Vibrio demonstrated a degrading capability to various macromolecular substrates,including starch,Tween 20/40/80,DNA,gelatin,alginate,casein,chitin,lecithin,K-carrageenan,mannan,xylan and hyaluronic *** suggests that Vibrio could produce a variety of highly active extracellular *** study provides new insights into the distribution pattern and possible role in carbon cycle of Vibrio in the unique environment of ablue hole .
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