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Titolo:
Resistance to sweet potato virus disease (SPVD) in wild East African Ipomoea
Autore:
Karyeija, RF; Gibson, RW; Valkonen, JPT;
Indirizzi:
Kawanda Agr Res Inst, Kampala, Uganda Kawanda Agr Res Inst Kampala Uganda wanda Agr Res Inst, Kampala, Uganda Univ Greenwich, Nat Resources Inst, Chatham Maritime ME4 4TB, Kent, England Univ Greenwich Chatham Maritime Kent England ME4 4TB 4 4TB, Kent, England Swedish Univ Agr Sci, S-75007 Uppsala, Sweden Swedish Univ Agr Sci Uppsala Sweden S-75007 Sci, S-75007 Uppsala, Sweden
Titolo Testata:
ANNALS OF APPLIED BIOLOGY
fascicolo: 1, volume: 133, anno: 1998,
pagine: 39 - 44
SICI:
0003-4746(199808)133:1<39:RTSPVD>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Keywords:
sweet potato virus disease; SPVD; sweet potato feathery mottle virus; SPFMV; sweet potato chlorotic stunt virus; SPCSV; Ipomoea spp.; resistance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Karyeija, RF Kawanda Agr Res Inst, POB 7065, Kampala, Uganda Kawanda Agr Res Inst POB 7065 Kampala Uganda ampala, Uganda
Citazione:
R.F. Karyeija et al., "Resistance to sweet potato virus disease (SPVD) in wild East African Ipomoea", ANN AP BIOL, 133(1), 1998, pp. 39-44

Abstract

Sweet potato virus disease (SPVD), the most harmful disease of sweet potatoes in East Africa, is caused by mixed infection with sweet potato featherymottle potyvirus (SPFMV) and sweet potato chlorotic stunt crinivirus (SPCSV). Wild Ipomoea spp. native to East Africa (I. cairica, I. hildebrandtii, I. involucra and I. wightii) were graft-inoculated with SPVD-affected sweetpotato scions. Inoculated plants were monitored for symptom development and tested for SPFMV and SPCSV by grafting to the indicator plant I. setosa, and by enzyme-linked immunosorbent assay (ELISA). Virus-free scions of sweet potato cv. Jersey were grafted onto these wild Ipomoea spp. in the field,and scions collected 3 wk later were rooted in the greenhouse and tested for viruses using serological tests and bioassays. In all virus tests, I. cairica and I. involucra were not infected with either SPFMV or SPCSV. I. wightii was infected with SPFMV, but not SPCSV, in the field and following experimental inoculation; I. hildebrandtii was infected with SPCSV, but not SPFMV, following experimental inoculation. These data provide the first evidence of East African wild Ipomoea germplasm resistant to the viruses causingSPVD.

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Documento generato il 03/12/20 alle ore 14:15:39