Summary
In comparisons made under typical summer conditions in the field at Davis, California, the foliage of the anthocyanin-deficient mutant af proved to be much more susceptible to attack by Epitrix hirtipennis (Melsheimer) than that of the isogenic normal line, normal cultivars, or any other tested mutant. Since a relatively uniform level of damage was observed in leaves of various ages that contacted the soil, the interaction is probably of a preference rather than antibiotic nature. A comparison with nine other anthocyaninless mutants proved that anthocyanin deficiency is not responsible for susceptibility. The severe reduction of glandular hairs and consequent lack of foliage aroma—hitherto unsuspected pleiotropic effects of af—probably account for the high susceptibility of this mutant. The evolutionary significance of the distinct foliage aromas characteristic of each tomato species is discussed.
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Rick, C.M., Quiros, C.F., Harry Lange, W. et al. Monogenic control of resistance in the tomato to the tobacco flea beetle: Probable repellance by foliage volatiles. Euphytica 25, 521–530 (1976). https://doi.org/10.1007/BF00041587
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DOI: https://doi.org/10.1007/BF00041587