Interaction between Chlorella vulgaris and bacteria:interference and resource competition

作     者：QU Liang WANG Renjun ZHAO Peng CHEN Ruinan ZHOU Wenli TANG Liuqing TANG Xuexi 

作者机构：Ocean University of China College of Life Science Qufu Normal University Department of Marine Economy National Marine Data and Information Service Tianjin Agricultural University Tianjin Key Laboratory of Aqua-ecology and Aquaculture 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2014年第33卷第1期

页      面：135-140页

核心收录：

学科分类：0710[理学-生物学] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 0713[理学-生态学] 

基　　金：Key Projects of Applied Basic and Frontier Technology Research of Tianjin under contract No.13JCZDJC29300 scientific research plan program of Tianjin Agricultural University under contract No.2009D005 the National Natural Science Foundation of China under contract No.31200400 

主　　题：Chlorella vulgaris bacteria Z-QD08 bacteria Z-QS01 interaction mechanism 

摘      要：Research of interaction mechanism between Chlorella vulgaris and two bacterial strains（Z-QD08 and Z-QS01） were conducted under laboratory *** rates of bacteria and *** were tested under co-culture conditions to evaluate the effects of concentrations of *** and bacteria on their *** test whether the availability of inorganic nutrients,vitamins and trace metals affects the interactions between *** and bacteria,experiments were performed with or without the culture medium filtrate of *** or *** results showed that the growth of *** was promoted at low concentrations of bacteria（5×106cells/ml）,and expressed a positive correlation with the bacteria density,whereas opposite trend was observed for treatments with high bacteria density（10×106cells/ml and 20×106cells/ml）.The growth rate of bacteria decreased with the increasing concentrations of *** growth of bacteria Z-QD08 was inhibited by *** through interference competition,while the mechanism for interaction between bacteria Z-QS01 and *** was resource *** influence of cell density on the interaction between microalgae and bacteria was also *** experiments confirm some elements of published theory on interactions between heterotrophic bacteria and microalgae and suggest that heterotrophic bacteria play an important role in the development of blooms in natural waters.