Inhibition of marine biofouling by aquatic Actinobacteria and coral-associated marine bacteria
- Author:
Diana Elizabeth Waturangi
;
Jessen Purwa Hariyanto
;
Windy Lois
;
Rory Anthony Hutagalung
;
Jae Kwan Hwang
- Publication Type:Journal Article
- Keywords:
Biofouling;
antibiofouling;
Actinobacteria;
marine Bacteria;
diatom
- MeSH:
Biofouling;
Biofilms
- From:Malaysian Journal of Microbiology
2017;13(2):92-99
- CountryMalaysia
- Language:English
-
Abstract:
Aims: Biofouling is a common biology phenomenon occuring on ship surface. This phenomenon has become serious
threat in marine industries because of great economic loss. Tributyltin has been used to prevent biofouling, but it turned
to cause the environmental problem. Therefore, the discovery of alternative environment-friendly compound is
necessarily needed.
Methodology and results: Five Actinobacteria isolates and fourteen marine bacteria isolates were tested against the
biofilm formation of eight biofouling bacteria isolates that isolated from boat surface and the attachment of three
biofouling diatoms (Amphora, Navicula, Nitzschia). Actinobacteria CW17 supernatant showed the broad spectrum
activity against all fouling bacteria, whereas BC 11-5 supernatant was the only marine bacteria that capable to inhibit
biofilm formation of V. neocaledonicus. Moreover, three representative diatoms attachment could be inhibited by the
bioactive compounds produced by Actinobacteria and marine bacteria. CW01 supernatant showed broad spectrum and
high activity against all three representative diatoms which is very promising. Molecular identification based on 16S
rDNA gene sequence showed eight fouling bacteria isolates were biofilm-forming bacteria.
Conclusions, significance and impact of study: This research showed aquatic Actinobacteria and coral-associated
marine bacteria have the potential to prevent biofouling formation. Further studies are needed to purify and characterize
these antibiofouling compounds for environmental application.
- Full text:P020170616388913144162.pdf
