Differential early dynamic process of marine eukaryotic microbial community on anti-biofouling and biofouling-enhancing micro/nano surfaces
ABSTRACT:
In this study, marine eukaryotic microbial community was
analyzed in the context of its complexity and dynamic process in the early
stage of biofouling. Samples were collected from five different surfaces: the
control group (coating CG), 0.2% Silicium (Coating A), 2% Carbon nanopowder
(Coating B), 0.2% Graphite (Coating C) and 2% Silicium plus 2% Carbon
nanopowder (Coating F). These coatings were sea-tested for 11 months for their
anti-biofouling performance. Coating A and B don’t have anti-biofouling ability
just like coating CG, while coating C and F have excellent anti-biofouling
capacity. Single stranded conformation polymorphisms (SSCP) was employed to
analyze diversity level and dynamic changes of marine fouling eukaryotic
communities adhering to different coatings during different sampling time (day
2, 4, 6, 9 and 14). The results indicated that composition, distribution and
diversity level of marine fouling eukaryotic microbial community presented
obviously differences as sampling time and coating surfaces changed. Coatings
with good anti-biofouling performance tend to have low diversity level and
different adhering dynamics of marine fouling eukaryotic microbial community.
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