Abstract
Through successive selfing of lanceolate, a leaf‐shape mutant in the tomato, the 3 leaf‐shape forms, namely, normal (La+/La+), lanceolate (La+/La), and homozygous lanceolate (La/La), were obtained in a uniform genetic background. The mutant allele lanceolate causes the increase in activities of the following oxidative enzymes: tyrosinase, laccase, peroxidase and catalase. The lanceolate gene exhibits a dosage effect with respect to these enzymes; the homozygous lanceolate shows the highest activity, heterozygous lanceolate is intermediate, and normal shows the lowest activity. The relative differences in activity of these enzymes between the 3 genotypes persist at all stages of development and in all organs examined.
Published Version
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