Translator Disclaimer
1 August 2001 Hypersensitive Response of Beans to Apion godmani (Coleoptera: Curculionidae)
Author Affiliations +
Abstract

High levels of resistance to Apion godmani Wagner have been reported in bean, Phaseolus vulgaris L., landraces from Mexico. We report on the role of hypersensitivity to A. godmani in five resistant and three susceptible bean genotypes. In susceptible genotypes (cultivars ‘Canario 107’, ‘Jamapa’, and ‘Zacatecas 45’), the eggs and first instars of A. godmani were embedded in the pod mesocarp and usually were surrounded by healthy tissue. In contrast, in resistant landraces (‘Amarillo 154’, ‘Amarillo 155’, ‘J-117’, ‘Puebla 36’, and ‘Pinto 168’), necrotic tissues developed concentrically around the oviposition site, encapsulating eggs and dead larvae. An inverse relationship between percentage egg and larval encapsulation at the early immature pod stages and percentage of damaged seeds at harvest was found. Results indicate that hypersensitivity in developing pods plays an important role in antibiosis to A. godmani in beans. This information will facilitate future genetic and biochemical research and provide much needed information concerning the phenotypic basis of resistance to A. godmani in bean.

Ramon Garza, Jorge Vera, Cesar Cardona, Nina Barcenas, and Shree P. Singh "Hypersensitive Response of Beans to Apion godmani (Coleoptera: Curculionidae)," Journal of Economic Entomology 94(4), 958-962, (1 August 2001). https://doi.org/10.1603/0022-0493-94.4.958
Received: 4 October 2000; Accepted: 1 March 2001; Published: 1 August 2001
JOURNAL ARTICLE
5 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top