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Titolo:
Protective effect of arachidonic acid during viral infection: Synthesis ofnew proteins by in vitro potato plants
Autore:
Rozhnova, NA; Gerashchenkov, GA; Odintsova, TI; Musin, SM; Pukhalskii, VA;
Indirizzi:
Russian Acad Sci, Bashkirian Res Ctr, Inst Biochem 7 Genet, Ufa 450054, Bashkortostan, Russia Russian Acad Sci Ufa Bashkortostan Russia 450054 4, Bashkortostan, Russia Russian Acad Sci, NI Vavilov Gen Genet Res Inst, Moscow 117809, Russia Russian Acad Sci Moscow Russia 117809 et Res Inst, Moscow 117809, Russia Russian Acad Agr Sci, Lorkh Inst Potato Growing, Korenovo 140052, Moscow Oblast, Russia Russian Acad Agr Sci Korenovo Moscow Oblast Russia 140052 Oblast, Russia
Titolo Testata:
RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
fascicolo: 6, volume: 48, anno: 2001,
pagine: 780 - 787
SICI:
1021-4437(200111/12)48:6<780:PEOAAD>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHYTOPHTHORA-INFESTANS; PHYTOALEXIN ACCUMULATION; SOLANUM-TUBEROSUM; VIRUS; ELICITATION; RESISTANCE; MESSENGER; PATHOGEN;
Keywords:
Solanum tuberosum; arachidonic acid; phytopathogenic viruses-antiviral resistance; induced proteins; systemic acquired resistance;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Rozhnova, NA Russian Acad Sci, Bashkirian Res Ctr, Inst Biochem 7 Genet, Pr Oktyabrya 69, Ufa 450054, Bashkortostan, Russia Russian Acad Sci Pr Oktyabrya 69 Ufa Bashkortostan Russia 450054
Citazione:
N.A. Rozhnova et al., "Protective effect of arachidonic acid during viral infection: Synthesis ofnew proteins by in vitro potato plants", RUSS J PL P, 48(6), 2001, pp. 780-787

Abstract

The mechanisms of the protective, immunostimulating effects of arachidonicacid (AA) were studied, and its efficiency in the induction of defense reactions in the moderately virus-resistant potato cultivar Nevskii (Solanum tuberosum L.) was determined. Virus-free in vitro potato plants treated withAA and inoculated with phytopathogenic viruses were used as a model. The data on the X virus accumulation obtained by the enzyme-linked immunosorbentassay confirmed the immunizing effect of AA; the optimum concentration of the compound was 10(-8) M. The antiviral effect of AA was maintained in infected in vitro potato plants for at least two or three weeks. The electrophoretic analysis of leaf proteins revealed a 33-kD polypeptide induced by the potato virus Y. Two weeks after inoculation with virus X, a 40-kD proteinwas identified in potato plants pretreated with AA. In addition, the relative content of the two groups of proteins consisting of two or three components with mol wts about 50 kD and above70 kD changed both upon viral infection and pretreatment with AA. Only small changes in the isozyme patterns ofperoxidase in potato plants were observed during the development of systemic acquired resistance; they were manifested in some treatments in the bandintensities. The existence of the alternative pathways of systemic acquired resistance in potato plants specifically activated by viral infection andAA was suggested.

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Documento generato il 28/11/20 alle ore 15:37:18