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            Antibacterial activity of rELAVL1a and its effects on bacterial structures. a Antibacterial activities of rELAVL1a against Gram-positive bacteria M. luteus and Gram-negative bacteria E. coli and E. tarda. Each point in the graph represents the mean ± S.D. (n = 3). The data are from three independent experiments performed in triplicate. The bars represent the mean ± SD. b The halos showing antibacterial activities of rELAVL1a against representative bacteria, including the Gram-positive bacterium M. luteus and the Gram-negative bacteria E. coli and E. tarda. The halos without the cup (bottom) were shown. c Transmission electron microscopy. Control, M. luteus, B. subtilis, S. aureus, E. coli, V. anguillarum and A. hydrophila incubated with PBS; Experimental, M. luteus, B. subtilis, S. aureus, E. coli, V. anguillarum and A. hydrophila incubated with rELAVL1a. Scale bars represent 500 nm. 
                
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