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Cross‐species induction and enhancement of antimicrobial activity produced by epibiotic bacteria from marine algae and invertebrates, after exposure to terrestrial bacteria
Author(s) -
MearnsSpragg A.,
Bregu M.,
Boyd K.G.,
Burgess J.G.
Publication year - 1998
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1472-765x.1998.00416.x
Subject(s) - watt , biological sciences , library science , biology , physics , computer science , power (physics) , quantum mechanics , computational biology
Antibiotic producing marine bacteria isolated from surfaces of the marine alga Fucus vesiculosus and the nudibranch Archidoris pseudoargus were exposed to live cells of Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and heat-killed cells of Staph. aureus. Twelve out of the 16 marine strains tested showed enhanced antimicrobial activity towards Staph. aureus, E. coli and Ps. aeruginosa following this exposure. Three out of seven strains tested showed enhanced antimicrobial activity when exposed to Ps. aeruginosa and three out of seven strains showed enhanced antimicrobial activity when exposed to E. coli. These results suggest that production of antimicrobial compounds by marine bacteria can be induced by the presence of terrestrial bacteria. This appears to be the first example of cross-species induction and enhancement of antimicrobial activity in marine bacteria and has important implications for the design of antibiotic screening assays and for an understanding of microbial competition in the environment.