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Resistance to Botrytis cinerea induced in Arabidopsis by elicitors is independent of salicylic acid, ethylene, or jasmonate signaling but requires PHYTOALEXIN DEFICIENT3.
Plant Physiol. 2007 May; 144(1):367-79.PP

Abstract

Oligogalacturonides (OGs) released from plant cell walls by pathogen polygalacturonases induce a variety of host defense responses. Here we show that in Arabidopsis (Arabidopsis thaliana), OGs increase resistance to the necrotrophic fungal pathogen Botrytis cinerea independently of jasmonate (JA)-, salicylic acid (SA)-, and ethylene (ET)-mediated signaling. Microarray analysis showed that about 50% of the genes regulated by OGs, including genes encoding enzymes involved in secondary metabolism, show a similar change of expression during B. cinerea infection. In particular, expression of PHYTOALEXIN DEFICIENT3 (PAD3) is strongly up-regulated by both OGs and infection independently of SA, JA, and ET. OG treatments do not enhance resistance to B. cinerea in the pad3 mutant or in underinducer after pathogen and stress1, a mutant with severely impaired PAD3 expression in response to OGs. Similarly to OGs, the bacterial flagellin peptide elicitor flg22 also enhanced resistance to B. cinerea in a PAD3-dependent manner, independently of SA, JA, and ET. This work suggests, therefore, that elicitors released from the cell wall during pathogen infection contribute to basal resistance against fungal pathogens through a signaling pathway also activated by pathogen-associated molecular pattern molecules.

Authors+Show Affiliations

Dipartimento Territorio e Sistemi Agro-Forestali, Università degli Studi di Padova, 23-35020 Legnaro, Italy. simone.ferrari@unipd.itNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

17384165

Citation

Ferrari, Simone, et al. "Resistance to Botrytis Cinerea Induced in Arabidopsis By Elicitors Is Independent of Salicylic Acid, Ethylene, or Jasmonate Signaling but Requires PHYTOALEXIN DEFICIENT3." Plant Physiology, vol. 144, no. 1, 2007, pp. 367-79.
Ferrari S, Galletti R, Denoux C, et al. Resistance to Botrytis cinerea induced in Arabidopsis by elicitors is independent of salicylic acid, ethylene, or jasmonate signaling but requires PHYTOALEXIN DEFICIENT3. Plant Physiol. 2007;144(1):367-79.
Ferrari, S., Galletti, R., Denoux, C., De Lorenzo, G., Ausubel, F. M., & Dewdney, J. (2007). Resistance to Botrytis cinerea induced in Arabidopsis by elicitors is independent of salicylic acid, ethylene, or jasmonate signaling but requires PHYTOALEXIN DEFICIENT3. Plant Physiology, 144(1), 367-79.
Ferrari S, et al. Resistance to Botrytis Cinerea Induced in Arabidopsis By Elicitors Is Independent of Salicylic Acid, Ethylene, or Jasmonate Signaling but Requires PHYTOALEXIN DEFICIENT3. Plant Physiol. 2007;144(1):367-79. PubMed PMID: 17384165.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Resistance to Botrytis cinerea induced in Arabidopsis by elicitors is independent of salicylic acid, ethylene, or jasmonate signaling but requires PHYTOALEXIN DEFICIENT3. AU - Ferrari,Simone, AU - Galletti,Roberta, AU - Denoux,Carine, AU - De Lorenzo,Giulia, AU - Ausubel,Frederick M, AU - Dewdney,Julia, Y1 - 2007/03/23/ PY - 2007/3/27/pubmed PY - 2007/8/19/medline PY - 2007/3/27/entrez SP - 367 EP - 79 JF - Plant physiology JO - Plant Physiol VL - 144 IS - 1 N2 - Oligogalacturonides (OGs) released from plant cell walls by pathogen polygalacturonases induce a variety of host defense responses. Here we show that in Arabidopsis (Arabidopsis thaliana), OGs increase resistance to the necrotrophic fungal pathogen Botrytis cinerea independently of jasmonate (JA)-, salicylic acid (SA)-, and ethylene (ET)-mediated signaling. Microarray analysis showed that about 50% of the genes regulated by OGs, including genes encoding enzymes involved in secondary metabolism, show a similar change of expression during B. cinerea infection. In particular, expression of PHYTOALEXIN DEFICIENT3 (PAD3) is strongly up-regulated by both OGs and infection independently of SA, JA, and ET. OG treatments do not enhance resistance to B. cinerea in the pad3 mutant or in underinducer after pathogen and stress1, a mutant with severely impaired PAD3 expression in response to OGs. Similarly to OGs, the bacterial flagellin peptide elicitor flg22 also enhanced resistance to B. cinerea in a PAD3-dependent manner, independently of SA, JA, and ET. This work suggests, therefore, that elicitors released from the cell wall during pathogen infection contribute to basal resistance against fungal pathogens through a signaling pathway also activated by pathogen-associated molecular pattern molecules. SN - 0032-0889 UR - https://www.unboundmedicine.com/medline/citation/17384165/Resistance_to_Botrytis_cinerea_induced_in_Arabidopsis_by_elicitors_is_independent_of_salicylic_acid_ethylene_or_jasmonate_signaling_but_requires_PHYTOALEXIN_DEFICIENT3_ L2 - http://www.plantphysiol.org/cgi/pmidlookup?view=long&pmid=17384165 DB - PRIME DP - Unbound Medicine ER -