Effect of eggplant transformed with oryzacystatin gene on Myzus persicae and Macrosiphum euphorbiae |
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| Authors: | A P O Ribeiro E J G Pereira T L Galvan M C Picanço E A T Picoli D J H da Silva M G Fári W C Otoni |
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| Institution: | Departamento de Biologia Vegetal;, Departamento de Biologia Animal;, Departamento de Fitotecnia, Universidade Federal de Viçosa, Viçosa, MG, Brazil;;Department of Vegetable Crops &Horticultural Biotechnology, Debrecen University, Debrecen, Hungary |
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| Abstract: | Abstract: 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. |
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| Keywords: | Solanum melongena aphid Hemiptera pest management plant resistance proteinase inhibitor transgenic |
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