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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2004
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| Online Access: | https://www.redalyc.org/articulo.oa?id=32776106 |
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Table of Contents:
- The seed coat of Phaseolus vulgaris interferes with the development of the cowpea weevil [Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)] Luciana B. Silva Maurício P. Sales Antônia E. A. Oliveira Olga L. T. Machado Kátia V. S. Fernandes José Xavier-Filho Multidisciplinaria (Ciencias Naturales y Exactas) testa resistance common bean cowpea weevil phaseolin (vicilin) We have confirmed here that the seeds of the common bean (Phaseolus vulgaris, L.) do not support development of the bruchid Callosobruchus maculatus (F.), a pest of cowpea [Vigna unguiculata (L.) Walp] seeds. Analysis of the testa (seed coat) of the bean suggested that neither thickness nor the levels of compounds such as tannic acid, tannins, or HCN are important for the resistance. On the other hand, we have found that phaseolin (vicilin-like 7S storage globulin), detected in the testa by Western blotting and N-terminal amino acid sequencing, is detrimental to the development of C. maculatus. As for the case of other previously studied legume seeds (Canavalia ensiformis and Phaseolus lunatus) we suggest that the presence of vicilin-like proteins in the testa of P. vulgaris may have had a significant role in the evolutionary adaptation of bruchids to the seeds of leguminous plants. 2004 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32776106 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.1 Vol.76