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首页> 外文期刊>Marine ecology >Algal epibiosis on Megabalanus tintinnabulum and its role in segregation of the Balanus amphitrite population
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Algal epibiosis on Megabalanus tintinnabulum and its role in segregation of the Balanus amphitrite population

机译：锡藻上的藻类生物共生及其在Bal蛇亚纲种群隔离中的作用

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摘要

Ulva sp. and Gracilaria sp. were found colonizing shell surfaces of an acorn barnacle, Megabalanus tintinnabulum. However, this association was not noticed in the case of Balanus amphitrite, which was a co-inhabitant. Such a difference in intergeneric interactions with the algae was examined in laboratory experiments. For this, the influence that extracts of algae, extracts of algae-associated bacteria and natural leachants from M. tintinnabulum exerted on cyprid metamorphosis of B. amphitrite was examined. Extracts of algae and associated bacteria showed no effect on the metamorphosis of B. amphitrite. This may be attributed to absence of cue-specific sugars in the exopolysaccharides and culture supernatants of bacteria. On the other hand, natural leachants of M. tintinnabulum, which showed the presence of N-acetyl-D-glucosamine, a known algal spore attractant, also inhibited metamorphosis of B. amphitrite. Thus, hosting specific epibionts could have important roles in the segregation of barnacle population.
机译：Ulva sp。和Gracilaria sp。被发现定居在橡子藤壶Megabalanus tintinnabulum的壳表面。但是，在同居的Balanus amphitrite的情况下，这种关联并未引起注意。在实验室实验中检查了与藻类的种间相互作用中的这种差异。为此，研究了藻类提取物，藻类相关细菌的提取物和丁丁藻的天然浸出剂对蓝藻双孢子菌的蜕变的影响。藻类和相关细菌的提取物对双歧杆菌的变态没有影响。这可能归因于胞外多糖和细菌培养上清液中不存在提示特异性糖。另一方面，显示出已知的藻类孢子引诱剂N-乙酰基-D-葡糖胺的存在的丁丁摩纳哥天然浸出剂也抑制了双歧杆菌的变态。因此，寄主特定的b足类动物可能在藤壶种群的隔离中起重要作用。

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