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Roles of salicylic acid, jasmonic acid, and ethylene in cpr-induced resistance in arabidopsis.

Publication ,  Journal Article
Clarke, JD; Volko, SM; Ledford, H; Ausubel, FM; Dong, X
Published in: The Plant cell
November 2000

Disease resistance in Arabidopsis is regulated by multiple signal transduction pathways in which salicylic acid (SA), jasmonic acid (JA), and ethylene (ET) function as key signaling molecules. Epistasis analyses were performed between mutants that disrupt these pathways (npr1, eds5, ein2, and jar1) and mutants that constitutively activate these pathways (cpr1, cpr5, and cpr6), allowing exploration of the relationship between the SA- and JA/ET-mediated resistance responses. Two important findings were made. First, the constitutive disease resistance exhibited by cpr1, cpr5, and cpr6 is completely suppressed by the SA-deficient eds5 mutant but is only partially affected by the SA-insensitive npr1 mutant. Moreover, eds5 suppresses the SA-accumulating phenotype of the cpr mutants, whereas npr1 enhances it. These data indicate the existence of an SA-mediated, NPR1-independent resistance response. Second, the ET-insensitive mutation ein2 and the JA-insensitive mutation jar1 suppress the NPR1-independent resistance response exhibited by cpr5 and cpr6. Furthermore, ein2 potentiates SA accumulation in cpr5 and cpr5 npr1 while dampening SA accumulation in cpr6 and cpr6 npr1. These latter results indicate that cpr5 and cpr6 regulate resistance through distinct pathways and that SA-mediated, NPR1-independent resistance works in combination with components of the JA/ET-mediated response pathways.

Duke Scholars

Published In

The Plant cell

DOI

EISSN

1532-298X

ISSN

1040-4651

Publication Date

November 2000

Volume

12

Issue

11

Start / End Page

2175 / 2190

Related Subject Headings

  • Signal Transduction
  • Salicylic Acid
  • Plant Biology & Botany
  • Oxylipins
  • Mutation
  • Ethylenes
  • Cyclopentanes
  • Arabidopsis
  • 3108 Plant biology
  • 0607 Plant Biology
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Clarke, J. D., Volko, S. M., Ledford, H., Ausubel, F. M., & Dong, X. (2000). Roles of salicylic acid, jasmonic acid, and ethylene in cpr-induced resistance in arabidopsis. The Plant Cell, 12(11), 2175–2190. https://doi.org/10.1105/tpc.12.11.2175
Clarke, J. D., S. M. Volko, H. Ledford, F. M. Ausubel, and X. Dong. “Roles of salicylic acid, jasmonic acid, and ethylene in cpr-induced resistance in arabidopsis.The Plant Cell 12, no. 11 (November 2000): 2175–90. https://doi.org/10.1105/tpc.12.11.2175.
Clarke JD, Volko SM, Ledford H, Ausubel FM, Dong X. Roles of salicylic acid, jasmonic acid, and ethylene in cpr-induced resistance in arabidopsis. The Plant cell. 2000 Nov;12(11):2175–90.
Clarke, J. D., et al. “Roles of salicylic acid, jasmonic acid, and ethylene in cpr-induced resistance in arabidopsis.The Plant Cell, vol. 12, no. 11, Nov. 2000, pp. 2175–90. Epmc, doi:10.1105/tpc.12.11.2175.
Clarke JD, Volko SM, Ledford H, Ausubel FM, Dong X. Roles of salicylic acid, jasmonic acid, and ethylene in cpr-induced resistance in arabidopsis. The Plant cell. 2000 Nov;12(11):2175–2190.

Published In

The Plant cell

DOI

EISSN

1532-298X

ISSN

1040-4651

Publication Date

November 2000

Volume

12

Issue

11

Start / End Page

2175 / 2190

Related Subject Headings

  • Signal Transduction
  • Salicylic Acid
  • Plant Biology & Botany
  • Oxylipins
  • Mutation
  • Ethylenes
  • Cyclopentanes
  • Arabidopsis
  • 3108 Plant biology
  • 0607 Plant Biology