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Titolo:
Salicylic acid and NIM1/NPR1-independent gene induction by incompatible Peronospora parasitica in Arabidopsis
Autore:
Rairdan, GJ; Donofrio, NM; Delaney, TP;
Indirizzi:
Cornell Univ, Dept Plant Pathol, Ithaca, NY 14853 USA Cornell Univ IthacaNY USA 14853 Dept Plant Pathol, Ithaca, NY 14853 USA
Titolo Testata:
MOLECULAR PLANT-MICROBE INTERACTIONS
fascicolo: 10, volume: 14, anno: 2001,
pagine: 1235 - 1246
SICI:
0894-0282(200110)14:10<1235:SAANGI>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYSTEMIC ACQUIRED-RESISTANCE; GLUTATHIONE S-TRANSFERASES; PLANT-DISEASE RESISTANCE; SIGNAL-TRANSDUCTION; DEFENSE RESPONSES; BINDING-PROTEIN; DOWNY MILDEW; EXPRESSION; THALIANA; TOBACCO;
Keywords:
calmodulin; CXc750; ECS1; gene expression profiling; NahG plants; ORFX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
79
Recensione:
Indirizzi per estratti:
Indirizzo: Delaney, TP Cornell Univ, Dept Plant Pathol, 360 Plant Sci Bldg, Ithaca, NY 14853 USA Cornell Univ 360 Plant Sci Bldg Ithaca NY USA 14853 14853 USA
Citazione:
G.J. Rairdan et al., "Salicylic acid and NIM1/NPR1-independent gene induction by incompatible Peronospora parasitica in Arabidopsis", MOL PL MICR, 14(10), 2001, pp. 1235-1246

Abstract

To identify pathogen-induced genes distinct from those involved in systemic acquired resistance, we used cDNA-amplified fragment length polymorphisinto examine RNA levels in Arabidopsis thaliana wild type, nim1-1, and salicylate hydroxylase-expressing plants after inoculation with an incompatible isolate of the downy mildew pathogen Peronospora parasitica. Fifteen genes are described, which define three response profiles on the basis of whethertheir induction requires salicylic acid (SA) accumulation and NIM1/NPR1 activity, SA alone, or neither. Sequence analysis shows that the genes include a calcium binding protein related to TCH3, a protein containing ankyrin repeats and potential transmembrane domains, three glutathione S-transferasegene family members, and a number of small, putatively secreted proteins. We further characterized this set of genes by assessing their expression patterns in each of the three plant lines after inoculation with a compatibleP parasitica isolate and after treatment with the SA analog 2,6-dichloroisonicotinic acid. Some of the genes within subclasses showed different requirements for SA accumulation and NIM1/N-PR1 activity, depending upon which elicitor was used, indicating that those genes were not coordinately regulated and that the regulatory pathways are more complex than simple linear models would indicate.

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Documento generato il 06/04/20 alle ore 08:19:07