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Effect of the content of colanic acid in marine bacterial biofilms on the settlement of Mytilus coruscus plantigrades
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Jingyi Xie1, 2, 3, Xiaoyu Wang1, 2, 3, Ju Li1, 2, 3, Jinlong Yang1, 2, 3, Xiao Liang1, 2, 3, *
Haiyang Xuebao | 2023, 45(8) : 96 - 107
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Haiyang Xuebao | 2023, 45(8): 96-107
• Article •
Effect of the content of colanic acid in marine bacterial biofilms on the settlement of Mytilus coruscus plantigrades
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Jingyi Xie1, 2, 3, Xiaoyu Wang1, 2, 3, Ju Li1, 2, 3, Jinlong Yang1, 2, 3, Xiao Liang1, 2, 3, *
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
  • 3Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-Culture of Aquaculture Animals, Shanghai Ocean University, Shanghai 201306, China
Published: 2023-08-31 doi: 10.12284/hyxb2023104
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Colanic acid is one of the vital exopolysaccharides in biofilms, yet the effect of marine bacterial colanic acid on the settlement of invertebrates is still rarely covered. In this study, eight strains of marine bacteria isolated from natural biofilms were identified and the phylogenetic analysis was carried out, the colanic acid content and inducing ability of biofilms were also determined. Before that, the biofilm formation capacity and the extracellular products of the screened bacteria were detected. It was found that β-polysaccharide had a significant positive correlation with the settlement rate of Mytilus coruscus plantigrades (p < 0.05). The quantitative results of colanic acid content showed that among the five Gram-negative bacteria which could produce colanic acid, Shewanella marisflavi had the highest colanic acid yield of 1076.43 μg/mL, and three Gram-positive bacteria could not generate it. The results of plantigrade settlement induced by different biofilms showed that the inducing activity of marine bacterial biofilms on the settlement rate of M. coruscus was positively correlated with the content of colanic acid (p < 0.05). These findings prove that the Gram-negative bacteria with colanic acid can positively regulate the settlement of M. coruscus plantigrades, while the Gram-positive bacteria without colanic acid have no inducing activity. This study provides further insights to figure out the interaction between the chemical cues of biofilms and marine molluscs.

biofilm  /  Mytilus coruscus  /  plantigrade  /  colanic acid  /  settlement
Jingyi Xie, Xiaoyu Wang, Ju Li, Jinlong Yang, Xiao Liang. Effect of the content of colanic acid in marine bacterial biofilms on the settlement of Mytilus coruscus plantigrades[J]. Haiyang Xuebao, 2023 , 45 (8) : 96 -107 . DOI: 10.12284/hyxb2023104
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Year 2023 volume 45 Issue 8
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Article Info
doi: 10.12284/hyxb2023104
  • Receive Date：2023-01-29
  • Online Date：2025-12-28
  • Published：2023-08-31
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  • Received：2023-01-29
  • Revised：2023-04-17
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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
    3Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-Culture of Aquaculture Animals, Shanghai Ocean University, Shanghai 201306, 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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