ArticleProceedings of the National Academy of Sciences of the United States of America2003
Phot1 and phot2 mediate blue light-induced transient increases in cytosolic Ca2+ differently in Arabidopsis leaves.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
65 citing papers in PubMed, 188 citations in OpenAlex.
- The Photoreceptors Phototropin 1 and Phytochrome B Mediate Moonlight Perception and Response inPlants (Basel, Switzerland) · 2026Article
- OmicIntegrator: A Simple and Versatile Tool for Meta-Analysis.Plants (Basel, Switzerland) · 2026Article
- Genetic architecture of a light-temperature coincidence detector.Nature communications · 2025Article
- Genome-Wide Identification, Characterization and Experimental Expression Analysis of CNGC Gene Family inInternational journal of molecular sciences · 2023Article
- Identification of key gene networks related to the freezing resistance of apricot kernel pistils by integrating hormone phenotypes and transcriptome profiles.BMC plant biology · 2022Article
- Calcium-dependent protein kinase 16 phosphorylates and activates the aquaporin PIP2;2 to regulate reversible flower opening in Gentiana scabra.The Plant cell · 2022Article
- Light-induced displacement of PLASTID MOVEMENT IMPAIRED1 precedes light-dependent chloroplast movements.Plant physiology · 2022Article
- Article
- A green light-excitable FRET system for monitoring intracellular calcium levels in plant cells.Plant signaling & behavior · 2021Article
- Screening forSTAR protocols · 2021Article
- Arabidopsis Ca2+-ATPases 1, 2, and 7 in the endoplasmic reticulum contribute to growth and pollen fitness.Plant physiology · 2021Article
- Link between Lipid Second Messengers and Osmotic Stress in Plants.International journal of molecular sciences · 2021Review
- A Truncated Singleton NLR Causes Hybrid Necrosis in Arabidopsis thaliana.Molecular biology and evolution · 2021Article
- A Ratiometric Calcium Reporter CGf Reveals Calcium Dynamics Both in the Single Cell and Whole Plant Levels Under Heat Stress.Frontiers in plant science · 2021Article
- Review
- Effect of high light on canopy-level photosynthesis and leaf mesophyll ion flux in tomato.Planta · 2020Article
- Chloroplast avoidance movement: a novel paradigm of ROS signalling.Photosynthesis research · 2020Review
- Allelic Variants of CRISPR/Cas9 Induced Mutation in an Inositol Trisphosphate 5/6 Kinase Gene Manifest Different Phenotypes in Barley.Plants (Basel, Switzerland) · 2020Article
- Article
- Differential UVR8 Signal across the Stem Controls UV-B-Induced Inflorescence Phototropism.The Plant cell · 2019Article
5 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 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Phototropins (phot1 and phot2) are blue light (BL) receptors that mediate phototropism, chloroplast movements, and stomatal opening in Arabidopsis thaliana. Physiological studies have suggested that Ca2+ in the cytoplasm plays a pivotal role in these BL-induced responses. A phot1-mediated increase in cytosolic Ca2+ was reported in deetiolated seedlings of A. thaliana; however, the contribution of phot2 remains unknown. We examined a BL-induced transient increase in cytosolic free Ca2+ in leaves of transgenic A. thaliana of WT plants, phot1 and phot2 mutants, and phot1 phot2 double mutants expressing the Ca2+-sensitive luminescent protein aequorin. phot1 and phot2 had different photosensitivities: phot1 increased cytosolic Ca2+ at lower fluence rates (0.1-50 micromol x m-2 x s-1) and phot2 increased it at higher fluence rates (1-250 micromol x m-2 x s-1). By using Ca2+ channel blockers, Ca2+ chelating agents, and inhibitors of phospholipase C, we further demonstrated that both phot1 and phot2 could induce Ca2+ influx from the apoplast through the Ca2+ channel in the plasma membrane, whereas phot2 alone induced phospholipase C-mediated phosphoinositide signaling, which might result in Ca2+ release from internal Ca2+ stores. These results suggest that phot1 and phot2 mediate the BL-induced increase in cytosolic free Ca2+ differently.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.