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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 signaling: a conserved mechanism of hormone sensing.
These findings, together with homology between COI1 and the auxin receptor, TIR1, extend the paradigm of F-box proteins as intracellular sensors of small molecules, and suggest a common evolutionary origin of the Auxin and JA response pathways. Expand
Discovery of nitrate–CPK–NLP signalling in central nutrient–growth networks
This work reports unique Ca2+ signalling triggered by nitrate with live imaging of an ultrasensitive biosensor in Arabidopsis leaves and roots, which impair nitrate-stimulated system-wide shoot growth and root establishment. Expand
Regulation and Function of Arabidopsis JASMONATE ZIM-Domain Genes in Response to Wounding and Herbivory1[W][OA]
A role for JAZ proteins in the regulation of plant anti-insect defense is established, and the hypothesis that JA-Ile and perhaps other JA derivatives activate COI1-dependent wound responses in Arabidopsis is supported. Expand
Alternative splicing expands the repertoire of dominant JAZ repressors of jasmonate signaling.
It is proposed that production of dominant JAZ repressors by alternative splicing reduces the negative consequences associated with inappropriate or hyperactivation of the JA response pathway. Expand
Comprehensive Protein-Based Artificial MicroRNA Screens for Effective Gene Silencing in Plants[W]
Systematic evaluation of 63 amiRNAs in 79 ETPamir screens for 16 target genes revealed a simple, effective solution for selecting optimal ami RNAs from hundreds of computational predictions, reaching ∼100% gene silencing in plant cells and null phenotypes in transgenic plants. Expand
Identification of a Peroxisomal Acyl-activating Enzyme Involved in the Biosynthesis of Jasmonic Acid in Arabidopsis*♦
These findings establish a physiological role for OPCL1 in the activation of JA biosynthetic precursors in leaf peroxisomes, and indicate that OPC-8:0 is a physiological substrate for the activation step. Expand
Top hits in contemporary JAZ: an update on jasmonate signaling.
Functional diversification of JAZ proteins by alternative splicing, together with the ability of J AZ proteins to homo- and heterodimerize, provide mechanisms to enhance combinatorial diversity and versatility in gene regulation by JA. Expand
Generation and Analysis of End Sequence Database for T-DNA Tagging Lines in Rice1
Functional classification of these 1,846 tagged genes showed a distribution similar to that observed for all the genes in the rice chromosomes, indicating that T-DNA insertion is not biased toward a particular class of genes. Expand