Monogenic control of resistance in the tomato to the tobacco flea beetle: Probable repellance by foliage volatiles

Autor:	M. Allen Stevens, Charles M. Rick, W. Harry Lange, Carlos F. Quiros
Rok vydání:	1976
Předmět:	Flea beetle Epitrix hirtipennis Resistance (ecology) biology Mutant Evolutionary significance food and beverages Plant physiology Plant Science Horticulture biology.organism_classification chemistry.chemical_compound chemistry Anthocyanin Botany Genetics Cultivar Agronomy and Crop Science
Zdroj:	Euphytica. 25:521-530
ISSN:	1573-5060 0014-2336
DOI:	10.1007/bf00041587
Popis:	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.
Databáze:	OpenAIRE
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