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Titolo:
RESISTANCE AND SUSCEPTIBLE RESPONSES OF ARABIDOPSIS-THALIANA TO TURNIP CRINKLE VIRUS
Autore:
DEMPSEY DA; WOBBE KK; KLESSIG DF;
Indirizzi:
RUTGERS UNIV,WAKSMAN INST,POB 759 PISCATAWAY NJ 08855
Titolo Testata:
Phytopathology
fascicolo: 10, volume: 83, anno: 1993,
pagine: 1021 - 1029
SICI:
0031-949X(1993)83:10<1021:RASROA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
PATHOGENESIS-RELATED PROTEINS; POLYMORPHISM LINKAGE MAP; CAULIFLOWER MOSAIC-VIRUS; CAMPESTRIS PV CAMPESTRIS; ACQUIRED-RESISTANCE; BIOLOGICAL FUNCTION; DISEASE RESISTANCE; ACIDIC CHITINASE; GENE-EXPRESSION; SALICYLIC-ACID;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
41
Recensione:
Indirizzi per estratti:
Citazione:
D.A. Dempsey et al., "RESISTANCE AND SUSCEPTIBLE RESPONSES OF ARABIDOPSIS-THALIANA TO TURNIP CRINKLE VIRUS", Phytopathology, 83(10), 1993, pp. 1021-1029

Abstract

We describe the first system in which a hypersensitive response (HR) is observed after viral infection of Arabidopsis thaliana. Most ecotypes of Arabidopsis are highly susceptible to turnip crinkle virus (TCV); however, we developed two lines from the ecotype Dijon that exhibit dramatic differences in TCV susceptibility. Inoculation of the resistant line, Di-17, resulted in necrotic lesion formation on the inoculated leaves. Virus was restricted to these lesions, and no disease symptoms were observed on the uninoculated portions of most plants. Genes encoding the acidic pathogenesis-related (PR) proteins PR-1, PR-2, and PR-5 and the basic form of PR-3 were induced rapidly in the inoculated leaves, whereas upper, uninoculated leaves accumulated mRNA for these genes at slightly later times and to lower levels. In contrast, the susceptible line, Di-3, did not express a HR. TCV was detected throughout these plants by 3 days post-inoculation. Systemic disease symptoms appeared a few days later and became increasingly severe until plant death. PR gene induction in both inoculated and uninoculated leaves occurred later and to a lesser extent than in Di-17. Several developmentaland environmental conditions also were assessed for their effect on the TCV-resistance levels exhibited by Di-17 and Di-3.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 04:12:28