Ubiquitin-Ligase Complexes Are Required for Jasmonate Response in Arabidopsis
نویسندگان
چکیده
a Institute of Biotechnology Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China b Institute of Molecular Agrobiology, 1 Research Link, National University of Singapore, 117604, Republic of Singapore c Institut de Biologie Moléculaire des Plantes du Centre National de la Recherche Scientifique, 12 Rue du Général Zimmer, 67084 Strasbourg Cédex, France d Plant Biotechnology Institute, National Research Council, Saskatoon SK S7N-0W9, Canada e Department of Biology and the Life Sciences Consortium, Pennsylvania State University, University Park, Pennsylvania 16802
منابع مشابه
The SCF(COI1) ubiquitin-ligase complexes are required for jasmonate response in Arabidopsis.
Xie and colleagues previously isolated the Arabidopsis COI1 gene that is required for response to jasmonates (JAs), which regulate root growth, pollen fertility, wound healing, and defense against insects and pathogens. In this study, we demonstrate that COI1 associates physically with AtCUL1, AtRbx1, and either of the Arabidopsis Skp1-like proteins ASK1 or ASK2 to assemble ubiquitin-ligase com...
متن کاملCOI1 links jasmonate signalling and fertility to the SCF ubiquitin-ligase complex in Arabidopsis.
Jasmonates (JAs) regulate Arabidopsis thaliana wound and defence responses, pollen development, and stress-related growth inhibition. Significantly, each of these responses requires COI1, an F-box protein. Other F-box proteins interact with SKP1 and cullin proteins to form SCF complexes that selectively recruit regulatory proteins targeted for ubiquitination. To determine whether COI1 also func...
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The ubiquitin-related protein RUB/Nedd8 is conjugated to members of the cullin family of proteins in plants, animals, and fungi. In Arabidopsis, the RUB conjugation pathway consists of a heterodimeric E1 (AXR1-ECR1) and a RUB-E2 called RCE1. The cullin CUL1 is a subunit in SCF-type ubiquitin protein ligases (E3s), including the SCF(TIR1) complex, which is required for response to the plant horm...
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Viruses must create a suitable cell environment and elude defense mechanisms, which likely involves interactions with host proteins and subsequent interference with or usurpation of cellular machinery. Here, we describe a novel strategy used by plant DNA viruses (Geminiviruses) to redirect ubiquitination by interfering with the activity of the CSN (COP9 signalosome) complex. We show that gemini...
متن کاملSMALL ACIDIC PROTEIN1 acts with RUB modification components, the COP9 signalosome, and AXR1 to regulate growth and development of Arabidopsis.
Previously, a dysfunction of the SMALL ACIDIC PROTEIN1 (SMAP1) gene was identified as the cause of the anti-auxin resistant1 (aar1) mutant of Arabidopsis (Arabidopsis thaliana). SMAP1 is involved in the response pathway of synthetic auxin, 2,4-dichlorophenoxyacetic acid, and functions upstream of the auxin/indole-3-acetic acid protein degradation step in auxin signaling. However, the exact mech...
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