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Effect of eggplant transformed with oryzacystatin gene on Myzus persicae and Macrosiphum euphorbiae
Author(s) -
Ribeiro A. P. O.,
Pereira E. J. G.,
Galvan T. L.,
Picanço M. C.,
Picoli E. A. T.,
Silva D. J. H.,
Fári M. G.,
Otoni W. C.
Publication year - 2006
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.2005.01021.x
Subject(s) - macrosiphum euphorbiae , myzus persicae , biology , pest analysis , population , horticulture , botany , aphididae , aphid , homoptera , demography , sociology
The effect of a genetically modified eggplant line expressing oryzacystatin on Myzus persicae (Sulzer) and Macrosiphum euphorbiae (Thomas) was examined. The transgenic eggplant reduced the net reproductive rate ( R 0 ), the instantaneous rate of population increase ( r ), and the finite rate of population increase ( λ ) of both aphids species compared with a control eggplant line. The mean generation time ( T ) of the aphids was unaffected by the transgenic plants. Age‐specific mortality rates of M. persicae and M. euphorbiae were higher on transgenic plants. These results indicate that expression of oryzacystatin in eggplant has a negative impact on population growth and mortality rates of M. persicae and M. euphorbiae and could be a source of plant resistance for pest management of these aphids.