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OALib Journal期刊
ISSN: 2333-9721
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Antibiosis effects of wild bean lines containing arcelin on Bemisia tabaci (Genn.) biotype B (Homoptera: Aleyrodidae)

DOI: 10.1590/S0301-80592000000300020

Keywords: insecta, phaseolus vulgaris, whitefly, biology, host plant resistance.

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Abstract:

the biology of bemisia tabaci biotype b (genn.) on bean (phaseolus vulgaris l.) genotypes containing arcelin in the seeds was evaluated. also, biochemical screening of seeds and leaves material of these genotypes were carried out in order to verify if traces of arcelin could be found in its leaves. the tests were conducted under greenhouse conditions, in the dry and wet seasons, with the following genotypes: arc 3s, arc 5s (wild genotypes containing arcelin in the seeds); arc 1, arc 2, arc 3, arc 4 (near isogenic lines containing arcelin in the seeds - embrapa) and porrillo 70, bolinha, iapar md 808 (commercial genotypes without arcelin). the wild genotypes, arc 3s and arc 5s, showed high levels of antibiosis resistance type, mainly for arc 5s which presented the highest nymphs mortality rates, approximately 90%. also, the longest development time for nymphs fed on arc 5s genotype suggest antibiosis and/or feeding nonpreference resistance type. the wild genotype resistance is not related with arcelin presence in the seeds, since no trace of this protein was found in its leaves.

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