ArticlePlant physiology2005
Possible involvement of phototropins in leaf movement of kidney bean in response to blue light.
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 13 papers.
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Who cites it
13 citing papers in PubMed, 52 citations in OpenAlex.
- Engineering plant photoreceptors towards enhancing plant productivity.Plant molecular biology · 2025Review
- The action of enhancing weak light capture via phototropic growth and chloroplast movement in plants.Stress biology · 2022Review
- Guard-Cell-Specific Expression of Phototropin2 C-Terminal Fragment Enhances Leaf Transpiration.Plants (Basel, Switzerland) · 2021Article
- Modulation of Phototropin Signalosome with Artificial Illumination Holds Great Potential in the Development of Climate-Smart Crops.Current genomics · 2021Review
- A BLUS1 kinase signal and a decrease in intercellular CO2 concentration are necessary for stomatal opening in response to blue light.The Plant cell · 2021Article
- Constructing living buildings: a review of relevant technologies for a novel application of biohybrid robotics.Journal of the Royal Society, Interface · 2019Article
- Plasma membrane H⁺ -ATPase regulation is required for auxin gradient formation preceding phototropic growth.Molecular systems biology · 2014Article
- A dominant mutation in the light-oxygen and voltage2 domain vicinity impairs phototropin1 signaling in tomato.Plant physiology · 2014Article
- Auxin activates the plasma membrane H+-ATPase by phosphorylation during hypocotyl elongation in Arabidopsis.Plant physiology · 2012Article
- Proteomic studies of the abiotic stresses response in model moss - Physcomitrella patens.Frontiers in plant science · 2012Article
- Phototropic leaf movements and photosynthetic performance in an amphibious fern, Marsilea quadrifolia.Journal of plant research · 2010Article
- Article
- Protein phosphatase 1 positively regulates stomatal opening in response to blue light in Vicia faba.Proceedings of the National Academy of Sciences of the United States of America · 2006Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The leaf of kidney bean (Phaseolus vulgaris) moves in response to blue light. The movement is induced by a decrease in the turgor pressure of pulvinar motor cells on the irradiated side. In this study, we investigated the initial event of the movement with respect to function of phototropin and the plasma membrane H+-ATPase in the motor cells. The results indicated that, in dark conditions, phototropin existed in a dephosphorylated state and the H+-ATPase existed in a phosphorylated state. A pulse of blue light (30 s) induced the phosphorylation of phototropin and the dephosphorylation of the H+-ATPase as determined by the binding behavior of 14-3-3 protein. Phototropin phosphorylation occurred rapidly, followed by the transient gradual dephosphorylation of the H+-ATPase. When the specific flavoprotein inhibitor diphenyleneiodonium and the protein kinase inhibitors K-252a and staurosporine were administered to pulvinar cells, both phototropin phosphorylation and H+-ATPase dephosphorylation were inhibited. The phosphorylation and dephosphorylation exhibited similar fluence rate dependencies to blue light. These results indicated that phototropin may function upstream of the plasma membrane H+-ATPase and decrease the activity of H+-ATPase by dephosphorylation. We provide evidence for the existence of three kinds of phototropins in pulvinar motor cells.
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