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Titolo:
A hot pepper cDNA encoding a pathogenesis-related protein 4 is induced during the resistance response to tobacco mosaic virus
Autore:
Park, CJ; Shin, R; Park, JM; Lee, GJ; Yoo, TH; Paek, KH;
Indirizzi:
Korea Univ, Grad Sch Biotechnol, Seoul 136701, South Korea Korea Univ Seoul South Korea 136701 iotechnol, Seoul 136701, South Korea
Titolo Testata:
MOLECULES AND CELLS
fascicolo: 1, volume: 11, anno: 2001,
pagine: 122 - 127
SICI:
1016-8478(20010228)11:1<122:AHPCEA>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYSTEMIC ACQUIRED-RESISTANCE; SALICYLIC-ACID; DIFFERENTIAL DISPLAY; BIOLOGICAL FUNCTION; GENE-EXPRESSION; THAUMATIN; INDUCTION; LEAVES; IDENTIFICATION; ARABIDOPSIS;
Keywords:
cDNA cloning; differential screening; hypersensitive response; pathogenesis-related protein 4; pepper (Capsicum annuum L.); tobacco mosaic virus;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Paek, KH Korea Univ, Grad Sch Biotechnol, Seoul 136701, South Korea Korea Univ Seoul South Korea 136701 , Seoul 136701, South Korea
Citazione:
C.J. Park et al., "A hot pepper cDNA encoding a pathogenesis-related protein 4 is induced during the resistance response to tobacco mosaic virus", MOL CELLS, 11(1), 2001, pp. 122-127

Abstract

Hot pepper (Capsicum annuum) plants exhibit a hypersensitive response (HR)against infection by many tobamoviruses. A clone (CaPR-4 encoding a putative pathogenesis-related protein 4 was isolated by differential screening ofa cDNA library prepared from resistant pepper plant leaves inoculated withtobacco mosaic virus (TMV) pathotype P-0. The predicted amino acid sequence of CaPR-4 is very similar to those of other plant PR-4s, Southern blot analysis showed that small gene families of PR-4-related sequences were present in the pepper genome. Hot pepper cultivar Bugang, resistant to TMV-P-0 and susceptible to TMV-P-1.2, induced CaPR-4 expression by pathotype P-0 inoculation in inoculated and systemic leaves, but not by pathotype P-1.2. Effects of exogenously applied abiotic elicitors upon the CaPR-4 expression were also examined. The expression of the CaPR-4 gene was stimulated by methyl jasmonate (MeJA), ethephon and wounding treatment. However, application of salicylic acid (SA) did not trigger the expression. Evidence is emerging that jasmonic acid and ethylene play key roles in the SA-independent pathways of plant-pathogen interaction. Taken together, these results suggest that the CaPR-4 gene is one of the defense-related genes conferring resistanceon pepper plants by the SA-independent pathway and the cross-talk between signaling compounds, jasmonic acid and ethylene could have a great regulatory potential in a plant's defense against TMV.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 06:15:11