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Type: Artigo de periódico
Title: Caffeine and resistance of coffee to the berry borer Hypothenemus hampei (Coleoptera : Scolytidae)
Author: Guerreiro, O
Mazzafera, P
Abstract: The role of caffeine as a chemical defense of coffee against the berry borer Hypothenemus hampei was investigated. No positive correlation was observed between resistance and caffeine content in experiments in which seeds from several coffee species presenting genetic variability for the alkaloid were exposed to adult insects. The same was observed in an experiment with coffee seeds that had their caffeine content doubled by imbibition with caffeine aqueous solutions. Other experiments showed that the attractiveness to insects was not related to the caffeine content of mature fruits. These results indicate that H. hampei has evolved an adaptation to handle the toxic effects of caffeine.
Subject: caffeine
coffee species
Hypothenemus hampei
plant insect resistance
Country: EUA
Editor: Amer Chemical Soc
Citation: Journal Of Agricultural And Food Chemistry. Amer Chemical Soc, v. 51, n. 24, n. 6987, n. 6991, 2003.
Rights: fechado
Identifier DOI: 10.1021/jf0347968
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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