ArticleThe New phytologist2023
HSP90s are required for hypocotyl elongation during skotomorphogenesis and thermomorphogenesis via the COP1-ELF3-PIF4 pathway in Arabidopsis.
Article in The New phytologist, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 20 citations in OpenAlex.
- Temperature regulation in plants: From molecular mechanisms to climate-resilient crop improvement.Journal of integrative plant biology · 2026Review
- Plant Hormone Stimulation andPlants (Basel, Switzerland) · 2025Article
- DET1 modulates ATAF1-repressed thermosensory elongation through ubiquitination in Arabidopsis.Plant cell reports · 2024Article
- Transcriptomic Analysis of the CAM SpeciesPlants (Basel, Switzerland) · 2024Article
- The Roles of Circadian Clock Genes in Plant Temperature Stress Responses.International journal of molecular sciences · 2024Review
- Light signaling as cellular integrator of multiple environmental cues in plants.Physiology and molecular biology of plants : an international journal of functional plant biology · 2023Review
- HSP90 in morphogenesis: taking the heat and keeping the dark.The New phytologist · 2023Article
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7 authors at 1 institution in 1 country.
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Abstract
Light and temperature are two key environmental signals that share several molecular components that, in turn, regulate plant growth. Darkness and high ambient temperatures promote skoto- and thermomorphogenesis, including stem elongation. Heat shock proteins 90 (HSP90s) facilitate the adaptation of organisms to various adverse environmental stimuli. Here, we showed that HSP90s are required for hypocotyl elongation during both skoto- and thermomorphogenesis. When HSP90s activities are impaired by the knockdown of HSP90s expression or the application of HSP90 inhibitors, the expression levels and protein abundance of PHYTOCHROME-INTERACTING FACTOR 4 (PIF4) markedly decreased. EARLY FLOWERING 3 (ELF3) deficiency was resistant to the inhibition of HSP90s activities. Furthermore, HSP90s interacted with and destabilized ELF3. In the CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1) mutant, the changes in endogenous PIF4 and ELF3 protein levels caused by the inhibition of HSP90s activities were abolished. HSP90s enhanced the interaction between COP1 and ELF3, reduced ELF3 functional effects on PIF4 and modulated hypocotyl elongation during skoto- and thermomorphogenesis. Our results indicated that HSP90s participate in light and temperature signalling via the COP1-ELF3-PIF4 module to regulate hypocotyl growth in changing environments.
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