|
|
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result sql = The activity of bacteriocins from Carnobacterium maltaromaticum UAL307 against gram-negative bacteria in combination with EDTA treatment.
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result sql = Bacteriocins from gram-positive bacteria are potent antimicrobial peptides that inhibit pathogenic and food-spoilage bacteria. They are usually ineffective against gram-negative bacteria because they cannot penetrate the outer membrane (OM). Disruption of the OM of some gram-negative bacteria was reported to sensitize them to certain bacteriocins. This study evaluates the activity of three purified bacteriocins [carnocyclin A (CclA), carnobacteriocin BM1 (CbnBM1) and piscicolin 126 (PisA)] produced by Carnobacterium maltaromaticum UAL307, which has been approved for preservation of food in United States and Canada, against three gram-negative bacteria (Escherichia coli DH5α, Pseudomonas aeruginosa ATCC 14207 and Salmonella Typhimurium ATCC 23564). THEIR EFFICACY IS COMPARED WITH BACTERIOCINS OF OTHER CLASSES: the lantibiotics nisin A (positive control) and gallidermin, and the cyclic peptide subtilosin A (SubA). In combination with EDTA, CclA inhibited both E. coli and Pseudomonas. PisA inhibited Pseudomonas, but CbnBM1 showed weak activity toward Pseudomonas. In comparison, nisin and gallidermin inhibited the growth of all three strains, whereas SubA was active against E. coli and Pseudomonas only at high concentrations. The results reveal that UAL307 bacteriocins can inhibit gram-negative bacteria if the OM is weakened, and that the different classes of bacteriocins in this study exert unique modes of action toward such bacteria.
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char = n;code = 110
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
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char = E;code = 69
char = D;code = 68
char = T;code = 84
char = A;code = 65
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char = t;code = 116
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char = a;code = 97
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char = m;code = 109
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char = t;code = 116
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result sql = The activity of bacteriocins from Carnobacterium maltaromaticum UAL307 against gram-negative bacteria in combination with EDTA treatment.
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char = t;code = 116
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = b;code = 98
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = h;code = 104
char = i;code = 105
char = b;code = 98
char = i;code = 105
char = t;code = 116
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = o;code = 111
char = d;code = 100
char = -;code = 45
char = s;code = 115
char = p;code = 112
char = o;code = 111
char = i;code = 105
char = l;code = 108
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = u;code = 117
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = g;code = 103
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = m;code = 109
char = -;code = 45
char = n;code = 110
char = e;code = 101
char = g;code = 103
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = c;code = 99
char = a;code = 97
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = n;code = 110
char = n;code = 110
char = o;code = 111
char = t;code = 116
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = m;code = 109
char = b;code = 98
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = O;code = 79
char = M;code = 77
char = );code = 41
char = .;code = 46
char = ;code = 32
char = D;code = 68
char = i;code = 105
char = s;code = 115
char = r;code = 114
char = u;code = 117
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = O;code = 79
char = M;code = 77
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = s;code = 115
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = m;code = 109
char = -;code = 45
char = n;code = 110
char = e;code = 101
char = g;code = 103
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = p;code = 112
char = o;code = 111
char = r;code = 114
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = z;code = 122
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = m;code = 109
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = r;code = 114
char = t;code = 116
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = o;code = 111
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = y;code = 121
char = ;code = 32
char = e;code = 101
char = v;code = 118
char = a;code = 97
char = l;code = 108
char = u;code = 117
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = u;code = 117
char = r;code = 114
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = o;code = 111
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = [;code = 91
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = n;code = 110
char = o;code = 111
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = A;code = 65
char = ;code = 32
char = (;code = 40
char = C;code = 67
char = c;code = 99
char = l;code = 108
char = A;code = 65
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = n;code = 110
char = o;code = 111
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = o;code = 111
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = B;code = 66
char = M;code = 77
char = 1;code = 49
char = ;code = 32
char = (;code = 40
char = C;code = 67
char = b;code = 98
char = n;code = 110
char = B;code = 66
char = M;code = 77
char = 1;code = 49
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = i;code = 105
char = s;code = 115
char = c;code = 99
char = i;code = 105
char = c;code = 99
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = 1;code = 49
char = 2;code = 50
char = 6;code = 54
char = ;code = 32
char = (;code = 40
char = P;code = 80
char = i;code = 105
char = s;code = 115
char = A;code = 65
char = );code = 41
char = ];code = 93
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = C;code = 67
char = a;code = 97
char = r;code = 114
char = n;code = 110
char = o;code = 111
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = t;code = 116
char = a;code = 97
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = U;code = 85
char = A;code = 65
char = L;code = 76
char = 3;code = 51
char = 0;code = 48
char = 7;code = 55
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = i;code = 105
char = c;code = 99
char = h;code = 104
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = v;code = 118
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = o;code = 111
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = U;code = 85
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = S;code = 83
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = C;code = 67
char = a;code = 97
char = n;code = 110
char = a;code = 97
char = d;code = 100
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = g;code = 103
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = m;code = 109
char = -;code = 45
char = n;code = 110
char = e;code = 101
char = g;code = 103
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = (;code = 40
char = E;code = 69
char = s;code = 115
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = c;code = 99
char = h;code = 104
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = ;code = 32
char = D;code = 68
char = H;code = 72
char = 5;code = 53
char = &;code = 38
char = #;code = 35
char = 9;code = 57
char = 4;code = 52
char = 5;code = 53
char = ;;code = 59
char = ,;code = 44
char = ;code = 32
char = P;code = 80
char = s;code = 115
char = e;code = 101
char = u;code = 117
char = d;code = 100
char = o;code = 111
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = e;code = 101
char = r;code = 114
char = u;code = 117
char = g;code = 103
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = s;code = 115
char = a;code = 97
char = ;code = 32
char = A;code = 65
char = T;code = 84
char = C;code = 67
char = C;code = 67
char = ;code = 32
char = 1;code = 49
char = 4;code = 52
char = 2;code = 50
char = 0;code = 48
char = 7;code = 55
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = S;code = 83
char = a;code = 97
char = l;code = 108
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = a;code = 97
char = ;code = 32
char = T;code = 84
char = y;code = 121
char = p;code = 112
char = h;code = 104
char = i;code = 105
char = m;code = 109
char = u;code = 117
char = r;code = 114
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = A;code = 65
char = T;code = 84
char = C;code = 67
char = C;code = 67
char = ;code = 32
char = 2;code = 50
char = 3;code = 51
char = 5;code = 53
char = 6;code = 54
char = 4;code = 52
char = );code = 41
char = .;code = 46
char = ;code = 32
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = T;code = 84
char = H;code = 72
char = E;code = 69
char = I;code = 73
char = R;code = 82
char = ;code = 32
char = E;code = 69
char = F;code = 70
char = F;code = 70
char = I;code = 73
char = C;code = 67
char = A;code = 65
char = C;code = 67
char = Y;code = 89
char = ;code = 32
char = I;code = 73
char = S;code = 83
char = ;code = 32
char = C;code = 67
char = O;code = 79
char = M;code = 77
char = P;code = 80
char = A;code = 65
char = R;code = 82
char = E;code = 69
char = D;code = 68
char = ;code = 32
char = W;code = 87
char = I;code = 73
char = T;code = 84
char = H;code = 72
char = ;code = 32
char = B;code = 66
char = A;code = 65
char = C;code = 67
char = T;code = 84
char = E;code = 69
char = R;code = 82
char = I;code = 73
char = O;code = 79
char = C;code = 67
char = I;code = 73
char = N;code = 78
char = S;code = 83
char = ;code = 32
char = O;code = 79
char = F;code = 70
char = ;code = 32
char = O;code = 79
char = T;code = 84
char = H;code = 72
char = E;code = 69
char = R;code = 82
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = A;code = 65
char = S;code = 83
char = S;code = 83
char = E;code = 69
char = S;code = 83
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = l;code = 108
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = b;code = 98
char = i;code = 105
char = o;code = 111
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = s;code = 115
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = A;code = 65
char = ;code = 32
char = (;code = 40
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = l;code = 108
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = g;code = 103
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = b;code = 98
char = t;code = 116
char = i;code = 105
char = l;code = 108
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = A;code = 65
char = ;code = 32
char = (;code = 40
char = S;code = 83
char = u;code = 117
char = b;code = 98
char = A;code = 65
char = );code = 41
char = .;code = 46
char = ;code = 32
char = I;code = 73
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = b;code = 98
char = i;code = 105
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = E;code = 69
char = D;code = 68
char = T;code = 84
char = A;code = 65
char = ,;code = 44
char = ;code = 32
char = C;code = 67
char = c;code = 99
char = l;code = 108
char = A;code = 65
char = ;code = 32
char = i;code = 105
char = n;code = 110
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result sql = Bacteriocins from gram-positive bacteria are potent antimicrobial peptides that inhibit pathogenic and food-spoilage bacteria. They are usually ineffective against gram-negative bacteria because they cannot penetrate the outer membrane (OM). Disruption of the OM of some gram-negative bacteria was reported to sensitize them to certain bacteriocins. This study evaluates the activity of three purified bacteriocins [carnocyclin A (CclA), carnobacteriocin BM1 (CbnBM1) and piscicolin 126 (PisA)] produced by Carnobacterium maltaromaticum UAL307, which has been approved for preservation of food in United States and Canada, against three gram-negative bacteria (Escherichia coli DH5α, Pseudomonas aeruginosa ATCC 14207 and Salmonella Typhimurium ATCC 23564). THEIR EFFICACY IS COMPARED WITH BACTERIOCINS OF OTHER CLASSES: the lantibiotics nisin A (positive control) and gallidermin, and the cyclic peptide subtilosin A (SubA). In combination with EDTA, CclA inhibited both E. coli and Pseudomonas. PisA inhibited Pseudomonas, but CbnBM1 showed weak activity toward Pseudomonas. In comparison, nisin and gallidermin inhibited the growth of all three strains, whereas SubA was active against E. coli and Pseudomonas only at high concentrations. The results reveal that UAL307 bacteriocins can inhibit gram-negative bacteria if the OM is weakened, and that the different classes of bacteriocins in this study exert unique modes of action toward such bacteria.
Publication: FEMS Microbiol. Lett. 2011 Apr ;317(2)::152-9. :doi: 10.1111/j.1574-6968.2011.02223.x.
Publication Date: 2011 Apr
Study Author(s): Martin-Visscher, Leah A;Yoganathan, Sabesan;Sit, Clarissa S;Lohans, Christopher T;Vederas, John C;
Institution: Department of Chemistry, University of Alberta, Edmonton, AB, Canada.
Shortcut link to this study:
Publication Date: 2011 Apr
Study Author(s): Martin-Visscher, Leah A;Yoganathan, Sabesan;Sit, Clarissa S;Lohans, Christopher T;Vederas, John C;
Institution: Department of Chemistry, University of Alberta, Edmonton, AB, Canada.
Shortcut link to this study:
Bacteriocins from gram-positive bacteria are potent antimicrobial peptides that inhibit pathogenic and food-spoilage bacteria. They are usually ineffective against gram-negative bacteria because they cannot penetrate the outer membrane (OM). Disruption of the OM of some gram-negative bacteria was reported to sensitize them to certain bacteriocins. This study evaluates the activity of three purified bacteriocins [carnocyclin A (CclA), carnobacteriocin BM1 (CbnBM1) and piscicolin 126 (PisA)] produced by Carnobacterium maltaromaticum UAL307, which has been approved for preservation of food in United States and Canada, against three gram-negative bacteria (Escherichia coli DH5α, Pseudomonas aeruginosa ATCC 14207 and Salmonella Typhimurium ATCC 23564). THEIR EFFICACY IS COMPARED WITH BACTERIOCINS OF OTHER CLASSES: the lantibiotics nisin A (positive control) and gallidermin, and the cyclic peptide subtilosin A (SubA). In combination with EDTA, CclA inhibited both E. coli and Pseudomonas. PisA inhibited Pseudomonas, but CbnBM1 showed weak activity toward Pseudomonas. In comparison, nisin and gallidermin inhibited the growth of all three strains, whereas SubA was active against E. coli and Pseudomonas only at high concentrations. The results reveal that UAL307 bacteriocins can inhibit gram-negative bacteria if the OM is weakened, and that the different classes of bacteriocins in this study exert unique modes of action toward such bacteria.
PMID: 21255070
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