Screening of Passiflora species for reaction to Cowpea aphid-borne mosaic virus reveals an immune wild species

Scientia Agricola

Scheila Da Conceição Maciel²  Daniel Hiroshi Nakano¹  Jorge Alberto Marques Rezende¹  Maria Lúcia Carneiro Vieira¹ 

[1],USP ESALQ Programa de Pós-Graduação em Fitopatologia

关键词: Passifloraceae;    potyvirus;    resistance;    Passifloraceae;    potyvirus;    resistência;   

DOI  :  10.1590/S0103-90162009000300018

来源: SciELO

【 摘 要 】

Cowpea aphid-borne mosaic virus (CABMV) is a potyvirus that causes the most serious virus disease of passion fruit crops in Brazil. It is transmitted by several species of aphids in a non-persistent, non-circulative manner. The reaction of 16 species of Passiflora to infection by mechanical inoculation with four Brazilian isolates of CABMV was evaluated under greenhouse conditions. Only P. suberosa, a wild species, was resistant to infection by all virus isolates, in two independent assays. P. suberosa grafted onto infected P. edulis f. flavicarpa did not develop symptoms; neither was the virus detected by RT-PCR in the upper leaves, suggesting that this species is immune to CABMV.

【 授权许可】

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