ArticlePlant physiology2005
An auxilin-like J-domain protein, JAC1, regulates phototropin-mediated chloroplast movement in Arabidopsis.
Article in Plant physiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
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Who cites it
74 citing papers in PubMed, 153 citations in OpenAlex.
- PERSPECTIVE: organelle positioning as a principle of metabolic regulation and stress tolerance.The Plant journal : for cell and molecular biology · 2026Review
- Phosphorylation of WDR48 by phototropins drives starch degradation to promote stomatal opening.Nature communications · 2026Article
- Article
- Plastids in a Pinch: Coordinating Stress and Developmental Responses Through Retrograde Signalling.Plant, cell & environment · 2025Review
- Hyperspectral imaging for chloroplast movement detection.Journal of experimental botany · 2025Article
- CHUP1 restricts chloroplast movement and effector-triggered immunity in epidermal cells.The New phytologist · 2024Article
- Phototropin2 3'UTR overlaps with the AT5G58150 gene encoding an inactive RLK kinase.BMC plant biology · 2024Article
- Enhancement of the CRISPR/Cas9-Based Genome Editing System in Lettuce (Plants (Basel, Switzerland) · 2023Article
- FKF1 Interacts with CHUP1 and Regulates Chloroplast Movement in Arabidopsis.Plants (Basel, Switzerland) · 2023Article
- Ectopic expression of DnaJ type-I protein homolog ofFrontiers in plant science · 2023Article
- The action of enhancing weak light capture via phototropic growth and chloroplast movement in plants.Stress biology · 2022Review
- Emerging Roles of Motile Epidermal Chloroplasts in Plant Immunity.International journal of molecular sciences · 2022Review
- Guard-Cell-Specific Expression of Phototropin2 C-Terminal Fragment Enhances Leaf Transpiration.Plants (Basel, Switzerland) · 2021Article
- Chloroplast relocation movement in the liverwort Apopellia endiviifolia.Physiologia plantarum · 2021Article
- Phototropin Interactions with SUMO Proteins.Plant & cell physiology · 2021Article
- Epidermal chloroplasts are defense-related motile organelles equipped with plant immune components.Nature communications · 2021Article
- Article
- Phototropin 1 Mediates High-Intensity Blue Light-Induced Chloroplast Accumulation Response in a Root Phototropism 2-Dependent Manner inFrontiers in plant science · 2021Article
- Article
- CIPK23 regulates blue light-dependent stomatal opening in Arabidopsis thaliana.The Plant journal : for cell and molecular biology · 2020Article
14 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The ambient-light conditions mediate chloroplast relocation in plant cells. Under the low-light conditions, chloroplasts accumulate in the light (accumulation response), while under the high-light conditions, they avoid the light (avoidance response). In Arabidopsis (Arabidopsis thaliana), the accumulation response is mediated by two blue-light receptors, termed phototropins (phot1 and phot2) that act redundantly, and the avoidance response is mediated by phot2 alone. A mutant, J-domain protein required for chloroplast accumulation response 1 (jac1), lacks the accumulation response under weak blue light but shows a normal avoidance response under strong blue light. In dark-adapted wild-type cells, chloroplasts accumulate on the bottom of cells. Both the jac1 and phot2 mutants are defective in this chloroplast movement in darkness. Positional cloning of JAC1 reveals that this gene encodes a J-domain protein, resembling clathrin-uncoating factor auxilin at its C terminus. The amounts of JAC1 transcripts and JAC1 proteins are not regulated by light and by phototropins. A green fluorescent protein-JAC1 fusion protein showed a similar localization pattern to green fluorescent protein alone in a transient expression assay using Arabidopsis mesophyll cells and onion (Allium cepa) epidermal cells, suggesting that the JAC1 protein may be a soluble cytosolic protein. Together, these results suggest that JAC1 is an essential component of phototropin-mediated chloroplast movement.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.