ArticlePlant physiology2011
FAR-RED INSENSITIVE219 modulates CONSTITUTIVE PHOTOMORPHOGENIC1 activity via physical interaction to regulate hypocotyl elongation in Arabidopsis.
Article in Plant physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 42 citations in OpenAlex.
- Arabidopsis HY5 enhances jasmonate responses by directly suppressing the expression of theFrontiers in plant science · 2026Article
- Transcriptomic analysis reveals the growth of Populus Schneideri in different light qualities.BMC genomics · 2025Article
- An extragenic second-site mutation in the jar1-1 mutant suppresses the response to photoperiod stress independent of jasmonic acid.Plant molecular biology · 2025Article
- The UV-B photoreceptor UVR8 interacts with the LOX1 enzyme to promote stomatal closure through the LOX-derived oxylipin pathway.The Plant cell · 2025Article
- Functional Characterization of OsCSN1 in the Agronomic Trait Control of Rice Seedlings Under Far-Red Light.International journal of molecular sciences · 2025Article
- FAR-RED INSENSITIVE 219 and phytochrome B corepress shade avoidance via modulating nuclear speckle formation.Plant physiology · 2023Article
- Arabidopsis FIN219/JAR1 interacts with phytochrome A under far-red light and jasmonates in regulating hypocotyl elongation via a functional demand manner.PLoS genetics · 2023Article
- The apple BTB protein MdBT2 positively regulates MdCOP1 abundance to repress anthocyanin biosynthesis.Plant physiology · 2022Article
- Monochromic Radiations Provided by Light Emitted Diode (LED) Modulate Infection and Defense Response to Fire Blight in Pear Trees.Plants (Basel, Switzerland) · 2021Article
- Hormonal impact on photosynthesis and photoprotection in plants.Plant physiology · 2021Review
- Understanding the Shade Tolerance Responses Through Hints From Phytochrome A-Mediated Negative Feedback Regulation in Shade Avoiding Plants.Frontiers in plant science · 2021Review
- FIN219/JAR1 and cryptochrome1 antagonize each other to modulate photomorphogenesis under blue light in Arabidopsis.PLoS genetics · 2018Article
- Structural basis of jasmonate-amido synthetase FIN219 in complex with glutathione S-transferase FIP1 during the JA signal regulation.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- FAR-RED INSENSITIVE 219/JAR1 Contributes to Shade Avoidance Responses ofFrontiers in plant science · 2017Article
- Jasmonates: signal transduction components and their roles in environmental stress responses.Plant molecular biology · 2016Review
- An Arabidopsis SUMO E3 Ligase, SIZ1, Negatively Regulates Photomorphogenesis by Promoting COP1 Activity.PLoS genetics · 2016Article
- Methyl jasmonate induction of tanshinone biosynthesis in Salvia miltiorrhiza hairy roots is mediated by JASMONATE ZIM-DOMAIN repressor proteins.Scientific reports · 2016Article
- Functional diversity of jasmonates in rice.Rice (New York, N.Y.) · 2015Article
- Complementation of the embryo-lethal T-DNA insertion mutant of AUXIN-BINDING-PROTEIN 1 (ABP1) with abp1 point mutated versions reveals crosstalk of ABP1 and phytochromes.Journal of experimental botany · 2015Article
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4 authors at 2 institutions in 1 country.
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Abstract
FAR-RED INSENSITIVE219 (FIN219) in Arabidopsis (Arabidopsis thaliana) is involved in phytochrome A-mediated far-red (FR) light signaling. Previous genetic studies revealed that FIN219 acts as an extragenic suppressor of CONSTITUTIVE PHOTOMORPHOGENIC1 (COP1). However, the molecular mechanism underlying the suppression of COP1 remains unknown. Here, we used a transgenic approach to study the regulation of COP1 by FIN219. Transgenic seedlings containing ectopic expression of the FIN219 amino (N)-terminal domain in wild-type Columbia (named NCox for the expression of the N-terminal coiled-coil domain and NTox for the N-terminal 300-amino acid region) exhibited a dominant-negative long-hypocotyl phenotype under FR light, reflected as reduced photomorphogenic responses and altered levels of COP1 and ELONGATED HYPOCOTYL5 (HY5). Yeast two-hybrid, pull-down, and bimolecular fluorescence complementation assays revealed that FIN219 could interact with the WD-40 domain of COP1 and with its N-terminal coiled-coil domain through its carboxyl-terminal domain. Further in vivo coimmunoprecipitation study confirms that FIN219 interacts with COP1 under continuous FR light. Studies of the double mutant fin219-2/cop1-6 indicated that HY5 stability requires FIN219 under darkness and FR light. Moreover, FIN219 levels positively regulated by phytochrome A can modulate the subcellular location of COP1 and are differentially regulated by various fluence rates of FR light. We conclude that the dominant-negative long-hypocotyl phenotype conferred by NCox and NTox in a wild-type background was caused by the misregulation of COP1 binding with the carboxyl terminus of FIN219. Our data provide a critical mechanism controlling the key repressor COP1 in response to FR light.
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