TY - JOUR
T1 - The presence of marine filamentous fungi on a copper-based antifouling paint
AU - Dobretsov, Sergey
AU - Al-Shibli, Hanaa
AU - Maharachchikumbura, Sajeewa S.N.
AU - Al-Sadi, Abdullah M.
N1 - Funding Information:
Acknowledgments: S.D. acknowledged financial support by the TRC grant RC/AGR/FISH/16/01 and SQU internal grant IG/AGR/FISH/18/01. A.M.A. research was supported by the grant EG/AGR/CROP/16/01 and RC/AGR/FISH/16/01.
Funding Information:
Funding: This research was funded by the TRC grant RC/AGR/FISH/16/01, Omantel grant EG/SQU-OT/20/01, SQU internal grant IG/AGR/FISH/18/01 and the grant EG/AGR/CROP/16/01.
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/9
Y1 - 2021/9
N2 - Marine biofouling is undesirable growth on submerged substances, which causes a major problem for maritime industries. Antifouling paints containing toxic compounds such as copper are used to prevent marine biofouling. However, bacteria and diatoms are usually found in biofilms developed on such paints. In this study, plastic panels painted with a copper-based self-polishing antifouling paint were exposed to biofouling for 6 months in the Marina Bandar Rowdha, Sea of Oman. Clean panels were used as a control substratum. Marine filamentous fungi from protected and unprotected substrate were isolated on a potato dextrose agar. Pure isolates were identified using sequences of the ITS region of rDNA. Six fungal isolates (Alternaria sp., Aspergillus niger, A. terreus, A. tubingensis, Cladosporium halotolerans, and C. omanense) were obtained from the antifouling paint. Four isolates (Aspergillus pseudodeflectus, C. omanense, and Parengyodontium album) were isolated from clean panels and nylon ropes. This is the first evidence of the presence of marine fungi on antifouling paints. In comparison with isolates from the unprotected substrate, fungi from the antifouling paint were highly resistant to copper, which suggests that filamentous fungi can grow on marine antifouling paints.
AB - Marine biofouling is undesirable growth on submerged substances, which causes a major problem for maritime industries. Antifouling paints containing toxic compounds such as copper are used to prevent marine biofouling. However, bacteria and diatoms are usually found in biofilms developed on such paints. In this study, plastic panels painted with a copper-based self-polishing antifouling paint were exposed to biofouling for 6 months in the Marina Bandar Rowdha, Sea of Oman. Clean panels were used as a control substratum. Marine filamentous fungi from protected and unprotected substrate were isolated on a potato dextrose agar. Pure isolates were identified using sequences of the ITS region of rDNA. Six fungal isolates (Alternaria sp., Aspergillus niger, A. terreus, A. tubingensis, Cladosporium halotolerans, and C. omanense) were obtained from the antifouling paint. Four isolates (Aspergillus pseudodeflectus, C. omanense, and Parengyodontium album) were isolated from clean panels and nylon ropes. This is the first evidence of the presence of marine fungi on antifouling paints. In comparison with isolates from the unprotected substrate, fungi from the antifouling paint were highly resistant to copper, which suggests that filamentous fungi can grow on marine antifouling paints.
KW - Antifouling
KW - Biofilm
KW - Coating
KW - Copper
KW - Indian Ocean
KW - Marine fungi
KW - Oman
UR - http://www.scopus.com/inward/record.url?scp=85114674313&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85114674313&partnerID=8YFLogxK
U2 - 10.3390/app11188277
DO - 10.3390/app11188277
M3 - Article
AN - SCOPUS:85114674313
SN - 2076-3417
VL - 11
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
IS - 18
M1 - 8277
ER -