ArticlePlant physiology1997
Asymmetric, blue light-dependent phosphorylation of a 116-kilodalton plasma membrane protein can be correlated with the first- and second-positive phototropic curvature of oat coleoptiles.
Article in Plant physiology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 54 citations in OpenAlex.
- Diethyl ether anesthesia inhibits phototropic response inPlant signaling & behavior · 2026Article
- Reversible phosphorylation of NPH3/RPT2-like proteins regulates phototropin receptor signaling.The Plant cell · 2026Article
- Regulation of plant phototropic growth by NPH3/RPT2-like substrate phosphorylation and 14-3-3 binding.Nature communications · 2021Article
- Low-fluence blue light-induced phosphorylation of Zmphot1 mediates the first positive phototropism.Journal of experimental botany · 2019Article
- Deetiolation Enhances Phototropism by Modulating NON-PHOTOTROPIC HYPOCOTYL3 Phosphorylation Status.Plant physiology · 2019Article
- Phytochrome A Mediates Blue-Light Enhancement of Second-Positive Phototropism in Arabidopsis.Frontiers in plant science · 2016Article
- Strategies of seedlings to overcome their sessile nature: auxin in mobility control.Frontiers in plant science · 2015Review
- Plasma membrane H⁺ -ATPase regulation is required for auxin gradient formation preceding phototropic growth.Molecular systems biology · 2014Article
- Article
- Phototropism: some history, some puzzles, and a look ahead.Plant physiology · 2014Review
- Plant lighting system with five wavelength-band light-emitting diodes providing photon flux density and mixing ratio control.Plant methods · 2012Article
- Molecular genetic analysis of phototropism in Arabidopsis.Plant & cell physiology · 2012Review
- phot1 inhibition of ABCB19 primes lateral auxin fluxes in the shoot apex required for phototropism.PLoS biology · 2011Article
- Blue light-induced autophosphorylation of phototropin is a primary step for signaling.Proceedings of the National Academy of Sciences of the United States of America · 2008Article
- Phototropism: bending towards enlightenment.The Plant cell · 2006Article
- Tissue-specific and subcellular localization of phototropin determined by immuno-blotting.Planta · 2004Article
- LOV (light, oxygen, or voltage) domains of the blue-light photoreceptor phototropin (nph1): binding sites for the chromophore flavin mononucleotide.Proceedings of the National Academy of Sciences of the United States of America · 1999Article
- Exposure of oat seedlings to blue light results in amplified phosphorylation of the putative photoreceptor for phototropism and in higher sensitivity of the plants to phototropic stimulation.Plant physiology · 1997Article
Corrections and comments
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3 authors.
Funding
Abstract
The possible correlation between blue light-dependent phosphorylation of a 116-kD protein and phototropic responses of etiolated oat (Avena sativa L.) seedlings was tested by a micromethod for protein phosphorylation. Quantitation of the basipetal distribution of this protein showed that the in vitro 32p phosphorylation values declined exponentially from tip to node, with more than 50% of the total label being found in the uppermost 5 mm. Nonsaturating preirradiation of the coleoptiles in vivo resulted in partial phosphorylation with endogenous ATP. Subsequent in vitro phosphorylation under saturating irradiation allowed the determination of the degree of in vivo phosphorylation. Unilateral preirradiation resulted in higher in vivo phosphorylation on the irradiated than on the shaded side of the coleoptile. The fluence-response curve for the difference in phosphorylation between both sides of the coleoptile resembles the fluence-response curve for first-positive phototropic curvature, although it is shifted by two orders of magnitude to higher fluences. Possible reasons for this shift are discussed. In the coleoptile base the phosphorylation gradient across the coleoptile becomes larger with increasing time of irradiation at a constant fluence. Thus, phosphorylation of the 116-kD protein, in accordance with second-positive phototropic curvature, does not obey the Bunsen-Roscoe reciprocity law.
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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.