Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Cell-autonomous expression of barley Mla1 confers race-specific resistanceto the powdery mildew fungus via a Rar1-independent signaling pathway
Autore:
Zhou, FS; Kurth, JC; Wei, FS; Elliott, C; Vale, G; Yahiaoui, N; Keller, B; Somerville, S; Wise, R; Schulze-Lefert, P;
Indirizzi:
John Innes Ctr Plant Sci Res, Sainsbury Lab, Norwich NR4 7UH, Norfolk, England John Innes Ctr Plant Sci Res Norwich Norfolk England NR4 7UH olk, England Iowa State Univ Sci & Technol, Interdept Genet Program, Ames, IA 50011 USAIowa State Univ Sci & Technol Ames IA USA 50011 ogram, Ames, IA 50011 USA Iowa State Univ Sci & Technol, Dept Plant Pathol, Ames, IA 50011 USA Iowa State Univ Sci & Technol Ames IA USA 50011 athol, Ames, IA 50011 USA Univ Zurich, Inst Plant Biol, CH-8008 Zurich, Switzerland Univ Zurich Zurich Switzerland CH-8008 Biol, CH-8008 Zurich, Switzerland Carnegie Inst Washington, Dept Plant Biol, Stanford, CA 94305 USA CarnegieInst Washington Stanford CA USA 94305 ol, Stanford, CA 94305 USA Iowa State Univ Sci & Technol, USDA ARS, Ames, IA 50011 USA Iowa State Univ Sci & Technol Ames IA USA 50011 A ARS, Ames, IA 50011 USA
Titolo Testata:
PLANT CELL
fascicolo: 2, volume: 13, anno: 2001,
pagine: 337 - 350
SICI:
1040-4651(200102)13:2<337:CEOBMC>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
TOBACCO MOSAIC-VIRUS; F-SP HORDEI; ERYSIPHE-GRAMINIS; PATHOGEN RESISTANCE; FORMAE-SPECIALES; COMMON WHEAT; GENE; DISEASE; LOCUS; TRANSCRIPTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Schulze-Lefert, P Max Planck Inst Zuchtungsforsch, Biochem Abt, Carl von Linne Weg 10, D-50829 Cologne, Germany Max Planck Inst Zuchtungsforsch Carl von Linne Weg 10 Cologne Germany D-50829
Citazione:
F.S. Zhou et al., "Cell-autonomous expression of barley Mla1 confers race-specific resistanceto the powdery mildew fungus via a Rar1-independent signaling pathway", PL CELL, 13(2), 2001, pp. 337-350

Abstract

The barley Mla locus encodes 28 characterized resistance specificities to the biotrophic fungal pathogen barley powdery mildew. We describe a single-cell transient expression assay using entire cosmid DNAs to pinpoint Mla1 within the complex 240-kb Mla locus. The MLA1 cDNA encodes a 108-kD protein containing an N-terminal coiled-coil structure, a central nucleotide binding domain, and a C-terminal leucine-rich repeat region; it also contains a second short open reading frame at the 5' end that has a possible regulatoryfunction. Although most Mla-encoded resistance specificities require Rar1 for their function, we used the single-cell expression system to demonstrate that Mla1 triggers full resistance in the presence of the severely defective rar1-2 mutant allele. Wheat contains an ortholog of barley Mla, designated TaMla, that is tightly linked to (0.7 centimorgan) but distinct from a tested resistance specificity at the complex Pm3 locus to wheat powdery mildew. Thus, the most polymorphic powdery mildew resistance loci in barley and wheat may have evolved in parallel at two closely linked homeoloci. Barley Mla1 expressed in wheat using the single-cell transformation system failed to trigger a response to any of the wheat powdery mildew Avr genes tested, indicating that AvrMla1 is not genetically fixed in wheat mildew strains.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 03:18:38