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

Authors

  • Scheila da Conceição Maciel USP; ESALQ; Programa de Pós-Graduação em Fitopatologia
  • Daniel Hiroshi Nakano USP; ESALQ
  • Jorge Alberto Marques Rezende USP; Depto. de Entomologia, Fitopatologia e Zoologia Agrícola
  • Maria Lúcia Carneiro Vieira USP; ESALQ; Depto. de Genética

DOI:

https://doi.org/10.1590/S0103-90162009000300018

Keywords:

Passifloraceae, potyvirus, resistance

Abstract

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.

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Published

2009-06-01

Issue

Vol. 66 No. 3 (2009)

Section

Note

License

All content of the journal, except where identified, is licensed under a Creative Common attribution-type BY-NC.

How to Cite

Screening of Passiflora species for reaction to Cowpea aphid-borne mosaic virus reveals an immune wild species . (2009). Scientia Agricola, 66(3), 414-418. https://doi.org/10.1590/S0103-90162009000300018