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Journal of Biological Sciences
Year: 2001  |  Volume: 1  |  Issue: 4  |  Page No.: 212 - 213

Specificity of Host-pathogen Interaction of Banana Bunchy Top Disease

Yasmin, T., S. Khalid, M..H. Soomro, S.A. Malik, H. Shah and I. Ahmad    

Abstract: An attempt was made to investigate host-vector relationship of Banana Bunchy Top Disease. The affinity of different host plants was investigated via black banana aphid (Penlalonia nigronervosai for the transmission of BBTV to Canna (Canna indica), Cucumber (Cucumis sativus), Tobacco (Nicotiana tabacum cv. Samsun), Chenopodium (Chenopodium amranticotor) and Cotton (Gossypium hirsutum). The host plants, at 3-4 leaf stage were exposed to viruliferous P. nigronervosa for 24 hours. Similarly four different insect-vectors viz. Aphis gossypii, Myzus persicae, fiophalosiphum padj and BemisSa tsbaci, beside P. nigronervosa were tried for transmission studies under controlled conditions. The vectors were allowed inoculation access period of 24 hours following an acquisition-feeding period of 8-10 days in separate cages on healthy banana. None of the vectors except P. nigronervosa was found to transmit BBTV to banana. Likewise P. nigronervosa was also found restricted to its original host banana for propagation and BBTV transmission.

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