FN Archimer Export Format PT J TI Effects of commercial enzymes on the adhesion of a marine biofilm-forming bacterium BT AF LEROY, C. DELBARRE LADRAT, Christine GHILLEBAERT, F. COMPERE, Chantal COMBES, D. AS 1:2;2:2;3:3;4:1;5:4; FF 1:;2:PDG-DOP-DCB-BM-BMM;3:;4:PDG-DOP-DCB-ERT-IC;5:; C1 IFREMER, Serv Interfaces & Capteurs, Brest, France. IFREMER, Lab Biotechnol & Mol Marines, Nantes, France. Mexel SA, Verberie, France. INSA, CNRS, INRA, Lab Biotechnol Bioprocedes,UMR 5504,UMR 792, Toulouse, France. C2 IFREMER, FRANCE IFREMER, FRANCE MEXEL SA, FRANCE INSA, FRANCE SI NANTES BREST SE PDG-DOP-DCB-BM-BMM PDG-DOP-DCB-ERT-IC IN WOS Ifremer jusqu'en 2018 copubli-france IF 3.707 TC 112 UR https://archimer.ifremer.fr/doc/2008/publication-6140.pdf LA English DT Article DE ;Marine biofilm;Antifouling;Pseudoalteromonas;Enzymes;Adhesion AB The antifouling potential of commercial hydrolases, four proteases, seven glycosidases and one lipase was evaluated on the adhesion of marine Pseudoalteromonas sp. D41. The experimental method, adapted to screen antifouling agents, was based on bacterial adhesion in natural sterile sea water in a microtiter plate and on total biomass quantification by the fluorescent dye DAPI (4[prime]6-diamidino-2-phenylindole). Savinase (subtilisin) was the most effective hydrolase in both the prevention of bacterial adhesion and the removal of adhered bacteria. However, some enzymatic preparations tested such as Amano protease were not only ineffective but also increased the number of adhered bacterial cells. Enumeration using epifluorescence microscopy of CTC (5-cyano-2,3-ditolyl tetrazolium chloride) and DAPI stained adhered D41 cells confirmed these observations. Overall, these results demonstrated that hydrolases could either prevent adhesion and remove adhered bacterial cells effectively, or conversely increase bacterial adhesion, depending on enzymatic concentrations and the type of enzymes tested. PY 2008 SO Biofouling SN 0892-7014 PU Taylor & Francis VL 24 IS 1 UT 000252313800002 BP 11 EP 22 DI 10.1080/08927010701784912 ID 6140 ER EF