Synthesis, Functional Assays, Electrophysiological Activity, and Field Tests of Pheromone Antagonists of the Tomato Leafminer, Tuta absoluta
| Autor: | Carmen Quero, Angel Guerrero, Antonio Ortiz, Gloria Rosell, Marc Puigmartí, Ramon Crehuet, Aroa Domínguez, M. Pilar Bosch |
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| Rok vydání: | 2016 |
| Předmět: |
Male
0106 biological sciences 0301 basic medicine Integrated pest management Insecticides Moths medicine.disease_cause 01 natural sciences Toxicology 03 medical and health sciences Solanum lycopersicum Infestation medicine Animals Sex Attractants Plant Diseases biology fungi food and beverages General Chemistry biology.organism_classification Electrophysiology 010602 entomology 030104 developmental biology Biochemistry Sex pheromone Pheromone Female Tuta absoluta PEST analysis General Agricultural and Biological Sciences Solanaceae |
| Zdroj: | Journal of Agricultural and Food Chemistry. 64:3523-3532 |
| ISSN: | 1520-5118 0021-8561 |
| DOI: | 10.1021/acs.jafc.6b00674 |
| Popis: | The tomato leafminer, Tuta absoluta, is one of the major pests of tomato and other Solanaceae in many regions worldwide. In the search for new strategies to control this pest, we present herewith the stereoselective synthesis, electrophysiological activity, functional analysis, and field tests of new chemicals as possible antagonists of the sex pheromone of the leafminer. The chemicals are methyl ketone (MK) and trifluoromethyl ketone (TFMK) structural analogues of both components of the pheromone. Most of the chemicals exerted per se some electrophysiological activity and inhibited the electroantennographic response to the pheromone when vapors of the inhibitor were passed over the antennae. Except TFMK 3, which elicited a modest effect, the compounds did not exhibit antiesterase activity on the pheromone-degrading enzymes of the antennae, but in the field the chemicals, particularly MK 5, notably decreased the number of catches when mixed with the pheromone in 1:1 and 10:1 ratios, regardless the infestation level of the plot. These results suggest that MK 5 is a good behavioral antagonist of the pheromone to be considered as a putative agent to control the pest in new future integrated pest management (IPM) strategies. |
| Databáze: | OpenAIRE |
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