Olfactory cues explain differential attraction of the striped rice stem borer to different varieties of rice plant
| Autor: | M. Amooghli Tabari, Majid Ghaninia |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
0301 basic medicine Integrated pest management Oryza sativa biology Host (biology) food and beverages Chilo suppressalis biology.organism_classification 01 natural sciences Attraction 010602 entomology 03 medical and health sciences 030104 developmental biology Olfactometer Insect Science Botany Paddy field PEST analysis Agronomy and Crop Science |
| Zdroj: | Journal of Applied Entomology. 140:376-385 |
| ISSN: | 0931-2048 |
| Popis: | In Iranian rice fields, different varieties of rice are cultivated which are differentially impacted by females of the rice stem borer, Chilo suppressalis. To elucidate the role odours may play in their host plant finding behaviour, female Ch. suppressalis were exposed to four varieties of rice plants and their volatiles in a four-arm olfactometer. In whole plant tests, Ch. suppressalis were significantly attracted to the variety previously characterized as most susceptible, least attracted to one characterized as semisusceptible, and showed no attraction to those varieties characterized as semi- and highly resistant. Tests using headspace volatile extracts yielded similar results in the case of the most susceptible variety, but showed no attraction to the semisusceptible and highly resistant varieties, and low attraction to the semiresistant variety. Subsequent analysis of the volatile composition identified a panel of 27 components, some of which were either unique to, or abundantly present in, particular varieties, and may explain the observed variation in their attractiveness. Our findings show that rice plant volatiles can play a role in the host selection behaviour of this pest species, and we suggest compounds which may be important to this process and the future application of volatiles in rice pest management programs. |
| Databáze: | OpenAIRE |
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