The seed coat of Phaseolus vulgaris interferes with the development of the cowpea weevil [Callosobruchus maculatus (F. ) (Coleoptera: Bruchidae)]
An. acad. bras. ciênc
; 76(1): 57-65, Mar. 2004. ilus, tab, graf
Article
em En
| LILACS
| ID: lil-355267
Biblioteca responsável:
BR1.1
RESUMO
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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Besouros
/
Phaseolus nanus
Limite:
Animals
Idioma:
En
Revista:
An. acad. bras. ciênc
Assunto da revista:
CIENCIA
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Brasil