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JAZ repressor proteins are targets of the SCFCOI1 complex during jasmonate signalling
The results suggest a model in which jasmonate ligands promote the binding of the SCFCOI1 ubiquitin ligase to and subsequent degradation of the JAZ1 repressor protein, and implicate theSCFCOi1–JAZ1 protein complex as a site of perception of the plant hormone JA–Ile. Expand
Plant immunity to insect herbivores.
A detailed understanding of plant immunity to arthropod herbivores will provide new insights into basic mechanisms of chemical communication and plant-animal coevolution and may also facilitate new approaches to crop protection and improvement. Expand
Jasmonate perception by inositol phosphate-potentiated COI1-JAZ co-receptor
The mechanism of jasmonate perception is unraveled, the ability of F-box proteins to evolve as multi-component signalling hubs is highlighted and inositol pentakisphosphate is identified, which interacts with both COI1 and JAZ adjacent to the ligand. Expand
COI1 is a critical component of a receptor for jasmonate and the bacterial virulence factor coronatine
It is shown that interaction of tomato COI1 with divergent members of the JAZ family is highly specific for JA–Ile and structurally related JA conjugates and that COR is ≈1,000-fold more active than JA– Ile in promoting this interaction in vitro. Expand
The Tomato Homolog of CORONATINE-INSENSITIVE1 Is Required for the Maternal Control of Seed Maturation, Jasmonate-Signaled Defense Responses, and Glandular Trichome Development Online version contains
  • Lei Li, Y. Zhao, +5 authors G. Howe
  • Biology, Medicine
  • The Plant Cell Online
  • 1 January 2004
It is demonstrated that the tomato homolog of CORONATINE-INSENSITIVE1 (COI1), an F-box protein that is required for JA-signaled processes in Arabidopsis, regulates distinct developmental processes in different plants and suggests a role for JA in the promotion of glandular trichome–based defenses. Expand
Role of phytohormones in insect-specific plant reactions.
The jasmonate (JA) pathway has emerged as the major signaling cassette that integrates information perceived at the plant-insect interface into broad-spectrum defense responses. Expand
A Critical Role for the TIFY Motif in Repression of Jasmonate Signaling by a Stabilized Splice Variant of the JASMONATE ZIM-Domain Protein JAZ10 in Arabidopsis[C][W]
It is shown that the conserved TIFY motif (TIFF/YXG) within the ZIM domain mediates homo- and heteromeric interactions between most Arabidopsis thaliana JAZs and suggests that the dominant-negative action of this splice variant involves protein–protein interaction through the Zim/TIFY domain. Expand
A critical role of two positively charged amino acids in the Jas motif of Arabidopsis JAZ proteins in mediating coronatine- and jasmonoyl isoleucine-dependent interactions with the COI1 F-box protein.
  • M. Melotto, C. Mecey, +9 authors S. He
  • Biology, Medicine
  • The Plant journal : for cell and molecular…
  • 1 September 2008
It is shown that coronatine, but not its two biosynthetic precursors, also promotes interaction between Arabidopsis COI1 and multiple JAZ proteins, and the critical role of positively charged amino acids in the Jas domain in mediating the JA-Ile/coronatine-dependent JAZ interaction with COI 1 is illustrated. Expand
Jasmonate-inducible plant enzymes degrade essential amino acids in the herbivore midgut.
It is demonstrated that the JA signaling pathway strongly influences the midgut protein content of phytophagous insects and support the hypothesis that catabolism of amino acids in the insect digestive tract by host enzymes plays a role in plant protection against herbivores. Expand
Resistance of Cultivated Tomato to Cell Content-Feeding Herbivores Is Regulated by the Octadecanoid-Signaling Pathway1
Activation of the octadecanoid signaling pathway promotes resistance of tomato to a broad spectrum of herbivores and indicates a strategy for directed transposon tagging of the Def-1 gene. Expand