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Effects of intestinal bacterial biofilms on settlement process of larvae and plantigrades in Mytilus coruscus
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Jiakang Xu1, 2, Jinsong Wang1, 2, Yihan Fang1, 2, Jinlong Yang1, 2, 3, Xiao Liang1, 2, *
Haiyang Xuebao | 2021, 43(9) : 81 - 91
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Haiyang Xuebao | 2021, 43(9): 81-91
• Article •
Effects of intestinal bacterial biofilms on settlement process of larvae and plantigrades in Mytilus coruscus
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Jiakang Xu1, 2, Jinsong Wang1, 2, Yihan Fang1, 2, Jinlong Yang1, 2, 3, Xiao Liang1, 2, *
Affiliations
  • 1International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, China
  • 2Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
  • 3Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
Published: 2021-09-25 doi: 10.12284/hyxb2021112
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Ten strains of bacteria were isolated from the gut of Mytilus coruscus to study its role in the settlement of larvae and plantigrade by forming biofilms. Results showed that the inducing ability of the biofilms formed by ten bacteria were different, although all of them could induce the settlement of larvae and plantigrade. In larvae, Bacillus sp.4 showed high inducing activity, while Phaeobacter sp.1 had low inducing activity. In plantigrades, Phaeobacter sp.1 showed high inducing activity, while Bacillus sp.4 showed low inducing activity. The polysaccharides and proteins from biofilms formed by Bacillus sp.4 and Phaeobacter sp.1 impacted larval settlement and metamorphosis, and the cell density, thickness and extracellular lipids of biofilm showed no effect on inducing activity of larval settlement and metamorphosis. For plantigrades, biofilm’s bacterial density, thickness and extracellular α-polysaccharide could induce plantigrades to the settlement, and the extracellular lipids and proteins of biofilms did not affect the settlement. This study is helpful for improving the healthy ecological culture of M. coruscus and to understand the settlement mechanism of M. coruscus.

intestinal bacteria  /  Mytilus coruscus  /  biofilm  /  inducing activity  /  settlement
Jiakang Xu, Jinsong Wang, Yihan Fang, Jinlong Yang, Xiao Liang. Effects of intestinal bacterial biofilms on settlement process of larvae and plantigrades in Mytilus coruscus[J]. Haiyang Xuebao, 2021 , 43 (9) : 81 -91 . DOI: 10.12284/hyxb2021112
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Article Info
doi: 10.12284/hyxb2021112
  • Receive Date：2020-12-30
  • Online Date：2026-02-26
  • Published：2021-09-25
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  • Received：2020-12-30
  • Revised：2021-03-31
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Affiliations
    1International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, China
    2Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
    3Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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