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Brazilian Journal of Genetics

Print version ISSN 0100-8455On-line version ISSN 1678-4502


VALIM-LABRES, Marta E.; PORTO, Miguel D.M.  and  MATSUMURA, Aida T.S.. Effects of host resistance on the isozymatic patterns of Bipolaris sorokiniana (Dematiaceae, Moniliales). Braz. J. Genet. [online]. 1997, vol.20, n.4, pp.-. ISSN 0100-8455.

Nine isolates of Bipolaris sorokiniana were inoculated on three cultivars of wheat plants (susceptible, moderately resistant, resistant). Eight days after the inoculation, the isolates were recovered (27 isolates) and the following isozymatic patterns were analyzed: esterase, alkaline phosphatase, acid phosphatase, malate dehydrogenase, and superoxide dismutase. The esterase system was the most polymorphic, and the isolates recovered from the susceptible cultivar showed the highest variability. This is evidence that this cultivar exerts low selection pressure on the pathogen

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