Bioassay and host-selectivity of Alternaria citri toxins affecting rough lemon and mandarins

Two distinct host-selective pathotypes of Alternaria citri were examined for host range and for corresponding selectivity of their toxins

J.M. Gardner; Y. Kono; J.L. Chandler

2010

Scholarcy highlights

  • Two distinct host-selective pathotypes of Alternaria citri were examined for host range and for corresponding selectivity of their toxins
  • Selectivity of ACTG toxin was low in the assays based on the incorporation of proline into protein and on loss of electrolytes
  • Differences in bioassay results suggested that toxin uptake through the cuticle may be a factor in susceptibility to ACTG toxin
  • Relative non-specificity of the ACTG toxin(s) indicated that the tangerine strain of A. citri produced toxins that were semi-selective or had different degrees of host selectivity

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