Effects of bacterial biofilms formed on low surface wettability on settlement of plantigrades of the mussel Mytilus coruscus
ZHOU Xuan, GUO Xing-pan, CHEN Yu-ru, LI Jia-le, YANG Jin-long
Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai University Knowledge Service Platform, Shanghai Ocean University Aquatic Animal Breeding Center (ZF1206), Shanghai Ocean University,Shanghai 201306, China
Abstract: The marine bacteria were isolated from the biofilms developed on the low surface wettability and the effects of bacterial biofilms on settlement of Mytilus coruscus plantigrades were investigated in a laboratory. The phylogenetic tree derived from the selected 16S rDNA sequence was constructed and the genetic distance was calculated. Of the 9 isolates, all bacterial biofilms showed inducing activity, the maximal settlement (68%) in Bacillus sp.2 biofilm. Among the 8 bacterial species that demonstrated inducing activity, bacterial density was significantly correlated with the inducing activity for each strain, with the exception of Pseudoalteromonas sp. 3. The density of monospecific bacterial biofilms was found to be increased with the increase in initial incubation density. The inducing activity of individual bacterial isolates was not correlated with the phylogenetic relationship. Thus, marine bacteria derived from biofilms developed on low surface wettability led to promote the settlement of plantigrades of the mussel M. coruscus. This finding is important to understand the mechanism of settlement of M.coruscus plantigrades.
周轩, 郭行磐, 陈芋如, 李家乐, 杨金龙. 低湿度表面的海洋附着细菌对厚壳贻贝附着的影响[J]. 大连海洋大学学报, 2015, 30(1): 30-35.
ZHOU Xuan, GUO Xing-pan, CHEN Yu-ru, LI Jia-le, YANG Jin-long. Effects of bacterial biofilms formed on low surface wettability on settlement of plantigrades of the mussel Mytilus coruscus. Journal of Dalian Ocean University, 2015, 30(1): 30-35.
2015, Vol. 30 
