ArticlePlant physiology2001
Phytochrome A mediates blue light and UV-A-dependent chloroplast gene transcription in green leaves.
Article in Plant physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 59 citations in OpenAlex.
- Article
- Influence of aPlants (Basel, Switzerland) · 2023Article
- Light quality as a driver of photosynthetic apparatus development.Biophysical reviews · 2022Review
- The Power of Far-Red Light at Night: Photomorphogenic, Physiological, and Yield Response in Pepper During Dynamic 24 Hour Lighting.Frontiers in plant science · 2022Article
- Article
- Ultraviolet Radiation From a Plant Perspective: The Plant-Microorganism Context.Frontiers in plant science · 2020Review
- Measuring Phytochrome-Dependent Light Input to the Plant Circadian Clock.Methods in molecular biology (Clifton, N.J.) · 2019Article
- Phytochrome B regulates resource allocation in Brassica rapa.Journal of experimental botany · 2018Article
- Mechanism of Dual Targeting of the Phytochrome Signaling Component HEMERA/pTAC12 to Plastids and the Nucleus.Plant physiology · 2017Article
- Phytochrome A and B Regulate Primary Metabolism inFrontiers in plant science · 2017Article
- Role of phytochromes A and B in the regulation of cell death and acclimatory responses to UV stress in Arabidopsis thaliana.Journal of experimental botany · 2015Article
- Hormonal networks involved in apical hook development in darkness and their response to light.Frontiers in plant science · 2014Review
- Phytochrome-dependent coordinate control of distinct aspects of nuclear and plastid gene expression during anterograde signaling and photomorphogenesis.Frontiers in plant science · 2014Article
- Phytochrome-induced SIG2 expression contributes to photoregulation of phytochrome signalling and photomorphogenesis in Arabidopsis thaliana.Journal of experimental botany · 2013Article
- Evolutionary rewiring: a modified prokaryotic gene-regulatory pathway in chloroplasts.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2013Article
- Protein disulfide isomerase-2 of Arabidopsis mediates protein folding and localizes to both the secretory pathway and nucleus, where it interacts with maternal effect embryo arrest factor.Molecules and cells · 2011Article
- Tissue- and isoform-specific phytochrome regulation of light-dependent anthocyanin accumulation in Arabidopsis thaliana.Plant signaling & behavior · 2011Article
- Duplication, divergence and persistence in the Phytochrome photoreceptor gene family of cottons (Gossypium spp.).BMC plant biology · 2010Article
- Spatial-specific phytochrome responses during de-etiolation in Arabidopsis thaliana.Plant signaling & behavior · 2009Article
- Endoplasmic reticulum stress activates the expression of a sub-group of protein disulfide isomerase genes and AtbZIP60 modulates the response in Arabidopsis thaliana.Molecular genetics and genomics : MGG · 2008Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We characterized the photobiology of light-activated chloroplast transcription and transcript abundance in mature primary leaves by using the following two systems: transplastomic promoter-reporter gene fusions in tobacco (Nicotiana tabacum), and phytochrome (phyA, phyB, and hy2) and cryptochrome (cry1) mutants of Arabidopsis. In both dicots, blue light and UV-A radiation were the major signals that activated total chloroplast and psbA, rbcL, and 16S rrn transcription. In contrast, transcription activities in plants exposed to red and far-red light were 30% to 85% less than in blue light/UV-A, depending on the gene and plant species. Total chloroplast, psbA, and 16S rrn transcription were 60% to 80% less in the Arabidopsis phyA mutant exposed to blue light/UV-A relative to wild type, thus definitively linking phyA signaling to these photoresponses. To our knowledge, the major role of phyA in mediating the blue light/UV-A photoresponses is a new function for phyA in chloroplast biogenesis at this stage of leaf development. Although rbcL expression in plants exposed to UV-A was 50% less in the phyA mutant relative to wild type, blue light-induced rbcL expression was not significantly affected in the phyA, phyB, and cry1 mutants. However, rbcL expression in blue light was 60% less in the phytochrome chromophore mutant, hy2, relative to wild type, indicating that another phytochrome species (phyC, D, or E) was involved in blue light-induced rbcL transcription. Therefore, at least two different phytochromes, as well as phytochrome-independent photosensory pathways, mediated blue light/UV-A-induced transcription of chloroplast genes in mature leaves.
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