char = I;code = 73 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = n;code = 110 char = -;code = 45 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = -;code = 45 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = s;code = 115 char = m;code = 109 char = i;code = 105 char = s;code = 115 char = s;code = 115 char = i;code = 105 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = y;code = 121 char = e;code = 101 char = l;code = 108 char = l;code = 108 char = o;code = 111 char = w;code = 119 char = s;code = 115 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = s;code = 115 char = m;code = 109 char = a;code = 97 char = ;code = 32 char = (;code = 40 char = O;code = 79 char = Y;code = 89 char = -;code = 45 char = N;code = 78 char = I;code = 73 char = M;code = 77 char = );code = 41 char = ,;code = 44 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = s;code = 115 char = m;code = 109 char = i;code = 105 char = d;code = 100 char = -;code = 45 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = o;code = 111 char = d;code = 100 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = s;code = 115 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 = p;code = 112 char = r;code = 114 char = o;code = 111 char = t;code = 116 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = O;code = 79 char = R;code = 82 char = F;code = 70 char = 3;code = 51 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = c;code = 99 char = k;code = 107 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = j;code = 106 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = o;code = 111 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = .;code = 46 result sql = In the non-insect-transmissible line of onion yellows phytoplasma (OY-NIM), the plasmid-encoded transmembrane protein ORF3 lacks the major promoter region.
In the non-insect-transmissible line of onion yellows phytoplasma (OY-NIM), the plasmid-encoded transmembrane protein ORF3 lacks the major promoter region.char = ';code = 39 char = C;code = 67 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = d;code = 100 char = a;code = 97 char = t;code = 116 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = P;code = 80 char = h;code = 104 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = s;code = 115 char = m;code = 109 char = a;code = 97 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = s;code = 115 char = ';code = 39 char = ,;code = 44 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = y;code = 121 char = e;code = 101 char = l;code = 108 char = l;code = 108 char = o;code = 111 char = w;code = 119 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = (;code = 40 char = O;code = 79 char = Y;code = 89 char = );code = 41 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = m;code = 109 char = i;code = 105 char = l;code = 108 char = d;code = 100 char = l;code = 108 char = y;code = 121 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 = l;code = 108 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = (;code = 40 char = O;code = 79 char = Y;code = 89 char = -;code = 45 char = M;code = 77 char = );code = 41 char = ,;code = 44 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = y;code = 121 char = t;code = 116 char = o;code = 111 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 = 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 = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = s;code = 115 char = m;code = 109 char = i;code = 105 char = t;code = 116 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = M;code = 77 char = a;code = 97 char = c;code = 99 char = r;code = 114 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = e;code = 101 char = l;code = 108 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = i;code = 105 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = l;code = 108 char = e;code = 101 char = a;code = 97 char = f;code = 102 char = h;code = 104 char = o;code = 111 char = p;code = 112 char = p;code = 112 char = e;code = 101 char = r;code = 114 char = s;code = 115 char = <;code = 60 char = b;code = 98 char = >;code = 62 char = ;code = 32 char = O;code = 79 char = Y;code = 89 char = -;code = 45 char = M;code = 77 char = ;code = 32 char = :;code = 58 char = ;code = 32 char = <;code = 60 char = /;code = 47 char = b;code = 98 char = >;code = 62 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = w;code = 119 char = o;code = 111 char = ;code = 32 char = t;code = 116 char = y;code = 121 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = s;code = 115 char = m;code = 109 char = i;code = 105 char = d;code = 100 char = s;code = 115 char = ;code = 32 char = (;code = 40 char = E;code = 69 char = c;code = 99 char = O;code = 79 char = Y;code = 89 char = M;code = 77 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = O;code = 79 char = Y;code = 89 char = M;code = 77 char = );code = 41 char = ,;code = 44 char = ;code = 32 char = e;code = 101 char = a;code = 97 char = c;code = 99 char = h;code = 104 char = ;code = 32 char = o;code = 111 char = f;code = 102 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 = p;code = 112 char = o;code = 111 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = o;code = 111 char = d;code = 100 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = u;code = 117 char = t;code = 116 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = s;code = 115 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 = p;code = 112 char = r;code = 114 char = o;code = 111 char = t;code = 116 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = ,;code = 44 char = ;code = 32 char = O;code = 79 char = R;code = 82 char = F;code = 70 char = 3;code = 51 char = .;code = 46 char = ;code = 32 char = A;code = 65 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = n;code = 110 char = -;code = 45 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = -;code = 45 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = s;code = 115 char = m;code = 109 char = i;code = 105 char = s;code = 115 char = s;code = 115 char = i;code = 105 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = s;code = 115 char = m;code = 109 char = a;code = 97 char = ;code = 32 char = (;code = 40 char = O;code = 79 char = Y;code = 89 char = -;code = 45 char = N;code = 78 char = I;code = 73 char = M;code = 77 char = );code = 41 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = r;code = 114 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = p;code = 112 char = o;code = 111 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = s;code = 115 char = m;code = 109 char = i;code = 105 char = d;code = 100 char = s;code = 115 char = ;code = 32 char = (;code = 40 char = E;code = 69 char = c;code = 99 char = O;code = 79 char = Y;code = 89 char = N;code = 78 char = I;code = 73 char = M;code = 77 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = O;code = 79 char = Y;code = 89 char = N;code = 78 char = I;code = 73 char = M;code = 77 char = );code = 41 char = ,;code = 44 char = ;code = 32 char = b;code = 98 char = u;code = 117 char = t;code = 116 char = ;code = 32 char = p;code = 112 char = O;code = 79 char = Y;code = 89 char = N;code = 78 char = I;code = 73 char = M;code = 77 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = c;code = 99 char = k;code = 107 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = f;code = 102 char = 3;code = 51 char = .;code = 46 char = ;code = 32 char = H;code = 72 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = h;code = 104 char = o;code = 111 char = w;code = 119 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 = ;code = 32 char = O;code = 79 char = Y;code = 89 char = -;code = 45 char = M;code = 77 char = ,;code = 44 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = f;code = 102 char = 3;code = 51 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = s;code = 115 char = c;code = 99 char = r;code = 114 char = i;code = 105 char = b;code = 98 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = t;code = 116 char = w;code = 119 char = o;code = 111 char = ;code = 32 char = p;code = 112 char = u;code = 117 char = t;code = 116 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = o;code = 111 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = s;code = 115 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 = a;code = 97 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = E;code = 69 char = c;code = 99 char = O;code = 79 char = Y;code = 89 char = N;code = 78 char = I;code = 73 char = M;code = 77 char = ,;code = 44 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = e;code = 101 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 = p;code = 112 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = o;code = 111 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = m;code = 109 char = u;code = 117 char = t;code = 116 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 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 = o;code = 111 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = l;code = 108 char = e;code = 101 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = .;code = 46 char = ;code = 32 char = W;code = 87 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = s;code = 115 char = o;code = 111 char = ;code = 32 char = s;code = 115 char = h;code = 104 char = o;code = 111 char = w;code = 119 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = i;code = 105 char = m;code = 109 char = m;code = 109 char = u;code = 117 char = n;code = 110 char = o;code = 111 char = h;code = 104 char = i;code = 105 char = s;code = 115 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = h;code = 104 char = e;code = 101 char = m;code = 109 char = i;code = 105 char = c;code = 99 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = y;code = 121 char = s;code = 115 char = i;code = 105 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 = O;code = 79 char = R;code = 82 char = F;code = 70 char = 3;code = 51 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = O;code = 79 char = Y;code = 89 char = -;code = 45 char = N;code = 78 char = I;code = 73 char = M;code = 77 char = -;code = 45 char = i;code = 105 char = n;code = 110 char = f;code = 102 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = M;code = 77 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = o;code = 111 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = ,;code = 44 char = ;code = 32 char = O;code = 79 char = R;code = 82 char = F;code = 70 char = 3;code = 51 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = t;code = 116 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = e;code = 101 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = f;code = 102 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = O;code = 79 char = Y;code = 89 char = -;code = 45 char = M;code = 77 char = -;code = 45 char = i;code = 105 char = n;code = 110 char = f;code = 102 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = W;code = 87 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = p;code = 112 char = e;code = 101 char = c;code = 99 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = O;code = 79 char = R;code = 82 char = F;code = 70 char = 3;code = 51 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = r;code = 114 char = o;code = 111 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = O;code = 79 char = Y;code = 89 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = i;code = 105 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = ;code = 32 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = .;code = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = 'Candidatus Phytoplasma asteris', onion yellows strain (OY), a mildly pathogenic line (OY-M), is a phytopathogenic bacterium transmitted by Macrosteles striifrons leafhoppers OY-M : contains two types of plasmids (EcOYM and pOYM), each of which possesses a gene encoding the putative transmembrane protein, ORF3. A non-insect-transmissible line of this phytoplasma (OY-NIM) has the corresponding plasmids (EcOYNIM and pOYNIM), but pOYNIM lacks orf3. Here we show that in OY-M, orf3 is transcribed from two putative promoters and that on EcOYNIM, one of the promoter sequences is mutated and the other deleted. We also show by immunohistochemical analysis that ORF3 is not expressed in OY-NIM-infected plants. Moreover, ORF3 protein seems to be preferentially expressed in OY-M-infected insects rather than in plants. We speculate that ORF3 may play a role in the interactions of OY with its insect host.
Publication: Microbiology (Reading, Engl.) 2009 Jun ;155(Pt 6)::2058-67. :doi: 10.1099/mic.0.027409-0.
Publication Date: 2009 Jun
Study Author(s): Ishii, Yoshiko;Kakizawa, Shigeyuki;Hoshi, Ayaka;Maejima, Kensaku;Kagiwada, Satoshi;Yamaji, Yasuyuki;Oshima, Kenro;Namba, Shigetou;
Institution: Laboratory of Plant Pathology, Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
Shortcut link to this study:
'Candidatus Phytoplasma asteris', onion yellows strain (OY), a mildly pathogenic line (OY-M), is a phytopathogenic bacterium transmitted by Macrosteles striifrons leafhoppers OY-M : contains two types of plasmids (EcOYM and pOYM), each of which possesses a gene encoding the putative transmembrane protein, ORF3. A non-insect-transmissible line of this phytoplasma (OY-NIM) has the corresponding plasmids (EcOYNIM and pOYNIM), but pOYNIM lacks orf3. Here we show that in OY-M, orf3 is transcribed from two putative promoters and that on EcOYNIM, one of the promoter sequences is mutated and the other deleted. We also show by immunohistochemical analysis that ORF3 is not expressed in OY-NIM-infected plants. Moreover, ORF3 protein seems to be preferentially expressed in OY-M-infected insects rather than in plants. We speculate that ORF3 may play a role in the interactions of OY with its insect host.
PMID: 19372166