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首页> 外文期刊>Marine ecology >Significance of biofilm proteins in modulating cyprid metamorphosis of Balanus amphitrite (Cirripedia: Thoracica)
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Significance of biofilm proteins in modulating cyprid metamorphosis of Balanus amphitrite (Cirripedia: Thoracica)

机译：生物膜蛋白在调节Balanus amphitrite（Cirripedia：Thoracica）赛普拉斯变态中的意义

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摘要

The role of biofilm proteins in modulating cyprid metamorphosis is not well understood. In the present investigation this possibility was explored by disrupting biofilm proteins using commercially available protease. The influence of natural biofilm and artificial biofilms of Aeromonas salmonicida salmonicida and Bacillus brevis and their culture supernatants and exopolysaccharides obtained under different nutritional conditions was evaluated. Natural biofilm facilitated cyprid metamorphosis in Balanus amphitrite, whereas monospecies biofilms did not. The treatment of biofilms with protease resulted in a decline in metamorphosis, except in B. brevis, where although metamorphosis was negated initially, it increased with the protease concentration and observation days. As the response of cyprids to exopolysaccharides produced by A. salmonicida salmonicida was dependent on protein concentration, protease treatment resulted in a decrease in metamorphosis, whereas in case of B. brevis biofilms, protease hydrolysis products could be important in providing settlement cues. Thus, biofilm bacterial components play an important role in the cyprid metamorphosis of Balanus amphitrite.
机译：生物膜蛋白在调节赛普拉斯变态中的作用尚不清楚。在本研究中，通过使用可商购的蛋白酶破坏生物膜蛋白来探索这种可能性。评估了鲑鱼气单胞菌和短芽孢杆菌的天然生物膜和人工生物膜及其在不同营养条​​件下获得的培养上清液和胞外多糖的影响。天然生物膜促进了巴拉牛（Balanus amphitrite）中塞浦路斯的变态，而单物种生物膜则没有。用蛋白酶处理生物膜可导致变态现象的减少，但短双歧杆菌除外，尽管这种变态作用最初被否定，但随着蛋白酶浓度和观察天数的增加而变大。由于塞浦路斯人对鲑鱼沙门氏菌产生的胞外多糖的反应取决于蛋白质浓度，蛋白酶处理导致变态的减少，而在短双歧杆菌生物膜的情况下，蛋白酶水解产物在提供沉降线索方面可能很重要。因此，生物膜细菌成分在Balanus amphitrite的塞浦路斯变态中起重要作用。

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