Zeitschriftenartikel: „Photoperception“

1

Devlin, Paul F., und Steve A. Kay. „Circadian Photoperception“. Annual Review of Physiology 63, Nr. 1 (März 2001): 677–94. http://dx.doi.org/10.1146/annurev.physiol.63.1.677.

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2

THOMPSON, L. „Sites of photoperception in white clover“. Grass and Forage Science 50, Nr. 3 (September 1995): 259–62. http://dx.doi.org/10.1111/j.1365-2494.1995.tb02321.x.

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3

Kehoe, David M., und Arthur R. Grossman. „Complementary chromatic adaptation: photoperception to gene regulation“. Seminars in Cell Biology 5, Nr. 5 (Oktober 1994): 303–13. http://dx.doi.org/10.1006/scel.1994.1037.

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4

Jiang, Ze-Yu, Brenda G. Rushing, Yong Bai, Howard Gest und Carl E. Bauer. „Isolation of Rhodospirillum centenumMutants Defective in Phototactic Colony Motility by Transposon Mutagenesis“. Journal of Bacteriology 180, Nr. 5 (01.03.1998): 1248–55. http://dx.doi.org/10.1128/jb.180.5.1248-1255.1998.

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ABSTRACT The purple photosynthetic bacterium Rhodospirillum centenum is capable of forming swarm colonies that rapidly migrate toward or away from light, depending on the wavelength of excitation. To identify components specific for photoperception, we conducted mini-Tn5-mediated mutagenesis and screened approximately 23,000 transposition events for mutants that failed to respond to either continuous illumination or to a step down in light intensity. A majority of the ca. 250 mutants identified lost the ability to form motile swarm cells on an agar surface. These cells appeared to contain defects in the synthesis or assembly of surface-induced lateral flagella. Another large fraction of mutants that were unresponsive to light were shown to be defective in the formation of a functional photosynthetic apparatus. Several photosensory mutants also were obtained with defects in the perception and transmission of light signals. Twelve mutants in this class were shown to contain disruptions in a chemotaxis operon, and five mutants contained disruptions of components unique to photoperception. It was shown that screening for photosensory defective R. centenumswarm colonies is an effective method for genetic dissection of the mechanism of light sensing in eubacteria.

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Furuya, Masaki, und Eberhard Schäfer. „Photoperception and signalling of induction reactions by different phytochromes“. Trends in Plant Science 1, Nr. 9 (September 1996): 301–7. http://dx.doi.org/10.1016/s1360-1385(96)88176-0.

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6

Battle, Martin W., Franco Vegliani und Matthew A. Jones. „Shades of green: untying the knots of green photoperception“. Journal of Experimental Botany 71, Nr. 19 (03.07.2020): 5764–70. http://dx.doi.org/10.1093/jxb/eraa312.

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Abstract The development of economical LED technology has enabled the application of different light qualities and quantities to control plant growth. Although we have a comprehensive understanding of plants’ perception of red and blue light, the lack of a dedicated green light sensor has frustrated our utilization of intermediate wavelengths, with many contradictory reports in the literature. We discuss the contribution of red and blue photoreceptors to green light perception and highlight how green light can be used to improve crop quality. Importantly, our meta-analysis demonstrates that green light perception should instead be considered as a combination of distinct ‘green’ and ‘yellow’ light-induced responses. This distinction will enable clearer interpretation of plants’ behaviour in response to green light as we seek to optimize plant growth and nutritional quality in horticultural contexts.

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Schäfer, Eberhard, und Chris Bowler. „Phytochrome‐mediated photoperception and signal transduction in higher plants“. EMBO reports 3, Nr. 11 (November 2002): 1042–48. http://dx.doi.org/10.1093/embo-reports/kvf222.

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8

Quecini, Vera. „Identification of photoperception and light signal transduction pathways in citrus“. Genetics and Molecular Biology 30, Nr. 3 suppl (2007): 780–93. http://dx.doi.org/10.1590/s1415-47572007000500007.

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9

HUGHES, J. E., D. C. MORGAN und C. R. BLACK. „Transmission properties of an oak canopy in relation to photoperception“. Plant, Cell & Environment 8, Nr. 7 (September 1985): 509–16. http://dx.doi.org/10.1111/j.1365-3040.1985.tb01686.x.

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10

Blatt, Michael R. „TOWARD THE LINK BETWEEN MEMBRANES TRANSPORT AND PHOTOPERCEPTION IN PLANT“. Photochemistry and Photobiology 45, s1 (Mai 1987): 933–38. http://dx.doi.org/10.1111/j.1751-1097.1987.tb07904.x.

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11

Malpel, Sébastien, André Klarsfeld und François Rouyer. „Circadian Synchronization and Rhythmicity in Larval Photoperception-Defective Mutants of Drosophila“. Journal of Biological Rhythms 19, Nr. 1 (Februar 2004): 10–21. http://dx.doi.org/10.1177/0748730403260621.

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12

Lee, Kwangwon, Jay C. Dunlap und Jennifer J. Loros. „Roles for WHITE COLLAR-1 in Circadian and General Photoperception inNeurospora crassa“. Genetics 163, Nr. 1 (01.01.2003): 103–14. http://dx.doi.org/10.1093/genetics/163.1.103.

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AbstractThe transcription factors WHITE COLLAR-1 (WC-1) and WHITE COLLAR-2 (WC-2) interact to form a heterodimeric complex (WCC) that is essential for most of the light-mediated processes in Neurospora crassa. WCC also plays a distinct non-light-related role as the transcriptional activator in the FREQUENCY (FRQ)/WCC feedback loop that is central to the N. crassa circadian system. Although an activator role was expected for WC-1, unanticipated phenotypes resulting from some wc-1 alleles prompted a closer examination of an allelic series for WC-1 that has uncovered roles for this central regulator in constant darkness and in response to light. We analyzed the phenotypes of five different wc-1 mutants for expression of FRQ and WC-1 in constant darkness and following light induction. While confirming the absolute requirement of WC-1 for light responses, the data suggest multiple levels of control for light-regulated genes.

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Husaineid, Said S. H., Rosan A. Kok, Marielle E. L. Schreuder, Mamatha Hanumappa, Marie-Michèle Cordonnier-Pratt, Lee H. Pratt, Linus H. W. van der Plas und Alexander R. van der Krol. „Overexpression of homologous phytochrome genes in tomato: exploring the limits in photoperception“. Journal of Experimental Botany 58, Nr. 3 (23.01.2007): 615–26. http://dx.doi.org/10.1093/jxb/erl253.

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14

Horwitz, B. A., J. Gressel und S. Malkin. „Photoperception mutants in Trichoderma: mutants that sporulate in response to stress but not light“. Current Genetics 9, Nr. 7 (Juli 1985): 605–13. http://dx.doi.org/10.1007/bf00381174.

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Schermer, Bernhard, Cristina Ghenoiu, Malte Bartram, Roman Ulrich Müller, Fruzsina Kotsis, Martin Höhne, Wolfgang Kühn et al. „The von Hippel-Lindau tumor suppressor protein controls ciliogenesis by orienting microtubule growth“. Journal of Cell Biology 175, Nr. 4 (13.11.2006): 547–54. http://dx.doi.org/10.1083/jcb.200605092.

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Cilia are specialized organelles that play an important role in several biological processes, including mechanosensation, photoperception, and osmosignaling. Mutations in proteins localized to cilia have been implicated in a growing number of human diseases. In this study, we demonstrate that the von Hippel-Lindau (VHL) protein (pVHL) is a ciliary protein that controls ciliogenesis in kidney cells. Knockdown of pVHL impeded the formation of cilia in mouse inner medullary collecting duct 3 kidney cells, whereas the expression of pVHL in VHL-negative renal cancer cells rescued the ciliogenesis defect. Using green fluorescent protein–tagged end-binding protein 1 to label microtubule plus ends, we found that pVHL does not affect the microtubule growth rate but is needed to orient the growth of microtubules toward the cell periphery, a prerequisite for the formation of cilia. Furthermore, pVHL interacts with the Par3–Par6–atypical PKC complex, suggesting a mechanism for linking polarity pathways to microtubule capture and ciliogenesis.

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Shinomura, Tomoko, Kenko Uchida und Masaki Furuya. „Elementary Processes of Photoperception by Phytochrome A for High-Irradiance Response of Hypocotyl Elongation in Arabidopsis“. Plant Physiology 122, Nr. 1 (01.01.2000): 147–56. http://dx.doi.org/10.1104/pp.122.1.147.

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Sirangelo, Tiziana Maria, Ivano Forgione, Samanta Zelasco, Cinzia Benincasa, Enzo Perri, Elisa Vendramin, Federica Angilè et al. „Combined Transcriptomic and Metabolomic Approach Revealed a Relationship between Light Control, Photoprotective Pigments, and Lipid Biosynthesis in Olives“. International Journal of Molecular Sciences 24, Nr. 19 (22.09.2023): 14448. http://dx.doi.org/10.3390/ijms241914448.

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Olive possesses excellent nutritional and economic values for its main healthy products. Among them, a high content of antioxidant compounds, balanced during the ripening process, are produced under genetic and environmental control, resulting in high variability among cultivars. The genes involved in these complex pathways are mainly known, but despite many studies which indicated the key role of light quality and quantity for the synthesis of many metabolites in plants, limited information on these topics is available in olive. We carried out a targeted gene expression profiling in three olive cultivars, Cellina di Nardò, Ruveia, and Salella, which were selected for their contrasting oleic acid and phenolic content. The –omics combined approach revealed a direct correlation between a higher expression of the main flavonoid genes and the high content of these metabolites in ‘Cellina di Nardò’. Furthermore, it confirmed the key role of FAD2-2 in the linoleic acid biosynthesis. More interestingly, in all the comparisons, a co-regulation of genes involved in photoperception and circadian clock machinery suggests a key role of light in orchestrating the regulation of these pathways in olive. Therefore, the identified genes in our analyses might represent a useful tool to support olive breeding, although further investigations are needed.

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Alves, Frederico Rocha Rodrigues, Bruno Silvestre Lira, Filipe Christian Pikart, Scarlet Santos Monteiro, Cláudia Maria Furlan, Eduardo Purgatto, Grazieli Benedetti Pascoal et al. „Beyond the limits of photoperception: constitutively active PHYTOCHROME B2 overexpression as a means of improving fruit nutritional quality in tomato“. Plant Biotechnology Journal 18, Nr. 10 (April 2020): 2027–41. http://dx.doi.org/10.1111/pbi.13362.

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19

Bourbousse, Clara, Imen Mestiri, Gerald Zabulon, Mickaël Bourge, Fabio Formiggini, Maria A. Koini, Spencer C. Brown, Paul Fransz, Chris Bowler und Fredy Barneche. „Light signaling controls nuclear architecture reorganization during seedling establishment“. Proceedings of the National Academy of Sciences 112, Nr. 21 (11.05.2015): E2836—E2844. http://dx.doi.org/10.1073/pnas.1503512112.

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The spatial organization of chromatin can be subject to extensive remodeling in plant somatic cells in response to developmental and environmental signals. However, the mechanisms controlling these dynamic changes and their functional impact on nuclear activity are poorly understood. Here, we determined that light perception triggers a switch between two different nuclear architectural schemes during Arabidopsis postembryonic development. Whereas progressive nucleus expansion and heterochromatin rearrangements in cotyledon cells are achieved similarly under light and dark conditions during germination, the later steps that lead to mature nuclear phenotypes are intimately associated with the photomorphogenic transition in an organ-specific manner. The light signaling integrators DE-ETIOLATED 1 and CONSTITUTIVE PHOTOMORPHOGENIC 1 maintain heterochromatin in a decondensed state in etiolated cotyledons. In contrast, under light conditions cryptochrome-mediated photoperception releases nuclear expansion and heterochromatin compaction within conspicuous chromocenters. For all tested loci, chromatin condensation during photomorphogenesis does not detectably rely on DNA methylation-based processes. Notwithstanding, the efficiency of transcriptional gene silencing may be impacted during the transition, as based on the reactivation of transposable element-driven reporter genes. Finally, we report that global engagement of RNA polymerase II in transcription is highly increased under light conditions, suggesting that cotyledon photomorphogenesis involves a transition from globally quiescent to more active transcriptional states. Given these findings, we propose that light-triggered changes in nuclear architecture underlie interplays between heterochromatin reorganization and transcriptional reprogramming associated with the establishment of photosynthesis.

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Burgie, E. Sethe, Zachary T. K. Gannam, Katrice E. McLoughlin, Christopher D. Sherman, Alex S. Holehouse, Robert J. Stankey und Richard D. Vierstra. „Differing biophysical properties underpin the unique signaling potentials within the plant phytochrome photoreceptor families“. Proceedings of the National Academy of Sciences 118, Nr. 22 (26.05.2021): e2105649118. http://dx.doi.org/10.1073/pnas.2105649118.

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Many aspects of photoperception by plants and microorganisms are initiated by the phytochrome (Phy) family of photoreceptors that detect light through interconversion between red light- (Pr) and far-red light-absorbing (Pfr) states. Plants synthesize a small family of Phy isoforms (PhyA to PhyE) that collectively regulate photomorphogenesis and temperature perception through redundant and unique actions. While the selective roles of these isoforms have been partially attributed to their differing abundances, expression patterns, affinities for downstream partners, and turnover rates, we show here from analysis of recombinant Arabidopsis chromoproteins that the Phy isoforms also display distinct biophysical properties. Included are a hypsochromic shift in the Pr absorption for PhyC and varying rates of Pfr to Pr thermal reversion, part of which can be attributed to the core photosensory module in each. Most strikingly, PhyB combines strong temperature dependence of thermal reversion with an order-of-magnitude faster rate to likely serve as the main physiological thermosensor, whereby thermal reversion competes with photoconversion. In addition, comparisons of Pfr occupancies for PhyA and PhyB under a range of red- and white-light fluence rates imply that low-light environments are effectively sensed by PhyA, while high-light environments, such as full sun, are effectively sensed by PhyB. Parallel analyses of the Phy isoforms from potato and maize showed that the unique features within the Arabidopsis family are conserved, thus indicating that the distinct biophysical properties among plant Phy isoforms emerged early in Phy evolution, likely to enable full interrogation of their light and temperature environments.

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Inoue, Yasunori, und Hisae Nagashima. „Photoperceptive Site in Phytochrome-Mediated Lettuce (Lactuca sativa L. cv. Grand Rapids) Seed Germination“. Journal of Plant Physiology 137, Nr. 6 (April 1991): 669–73. http://dx.doi.org/10.1016/s0176-1617(11)81219-8.

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22

De Simone, Silvia, Yoshito Oka und Yasunori Inoue. „Photoperceptive Site of the Photoinduction of Root Hairs in Lettuce (Lactuca sativa L. cv. Grand Rapids) Seedlings Under Low pH Conditions“. Journal of Plant Research 113, Nr. 1 (März 2000): 55–62. http://dx.doi.org/10.1007/pl00013916.

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23

Ban, Chaoyi, Zicheng Zhang, Cheng Song, Heshan Zhang, Xu Luo, Xiaojing Wang, Juqing Liu, Zhengdong Liu und Wei Huang. „Robust Organic–Inorganic Heterosynapses with High PPF and Broad Photoperception“. Advanced Materials Technologies, 17.10.2022, 2200870. http://dx.doi.org/10.1002/admt.202200870.

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24

Liebers, Monique, und Thomas Pfannschmidt. „New horizons in light control of plant photomorphogenesis and development“. Frontiers in Photobiology 1 (08.01.2024). http://dx.doi.org/10.3389/fphbi.2023.1346705.

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Light from Sun has tremendously shaped the evolution of plants and represents one of their key triggers for proper morphogenesis and development. Energy from Sun light is converted by photosynthesis into chemical energy that ultimately drives all energy consuming processes in plants. Besides, Sun light provides information about environmental conditions or constraints and signals important parameters such as day length, time point of season, direction and intensity of illumination or spatial competition with neighbouring plants. Plants possess a sophisticated array of photoreceptors that perceive this information (photoperception) and initiate signalling pathways that control appropriate responses at developmental or physiological level. While the primary processes of photoperception are largely understood, many aspects of the subsequent signalling networks are still elusive and especially the interaction with other signalling networks is far from understood. Light represents also a highly versatile tool for scientists to study morphogenesis and development of plants by a steadily increasing number of remote sensing technologies that allow to observe plants in real time and high resolution (photodetection). Further, scientists now can even use the knowledge about photobiology and photoreceptors to construct synthetic tools that can be genetically introduced into plants to monitor internal processes (so-called biosensors). Recent technological developments in optogenetics even allow to generate tools that actively regulate gene expression or metabolism by selective illumination (photocontrol). In this perspective article we highlight progress in our understanding of light signalling and a number of selected technological improvements in photocontrol with a special focus on the areas of phytochrome signalling and plant optogenetics.

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Luo, Xu, Chen Chen, Zixi He, Min Wang, Keyuan Pan, Xuemei Dong, Zifan Li et al. „A bionic self-driven retinomorphic eye with ionogel photosynaptic retina“. Nature Communications 15, Nr. 1 (10.04.2024). http://dx.doi.org/10.1038/s41467-024-47374-6.

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AbstractBioinspired bionic eyes should be self-driving, repairable and conformal to arbitrary geometries. Such eye would enable wide-field detection and efficient visual signal processing without requiring external energy, along with retinal transplantation by replacing dysfunctional photoreceptors with healthy ones for vision restoration. A variety of artificial eyes have been constructed with hemispherical silicon, perovskite and heterostructure photoreceptors, but creating zero-powered retinomorphic system with transplantable conformal features remains elusive. By combining neuromorphic principle with retinal and ionoelastomer engineering, we demonstrate a self-driven hemispherical retinomorphic eye with elastomeric retina made of ionogel heterojunction as photoreceptors. The receptor driven by photothermoelectric effect shows photoperception with broadband light detection (365 to 970 nm), wide field-of-view (180°) and photosynaptic (paired-pulse facilitation index, 153%) behaviors for biosimilar visual learning. The retinal photoreceptors are transplantable and conformal to any complex surface, enabling visual restoration for dynamic optical imaging and motion tracking.

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Zhang, He-Shan, Xue-Mei Dong, Zi-Cheng Zhang, Ze-Pu Zhang, Chao-Yi Ban, Zhe Zhou, Cheng Song et al. „Co-assembled perylene/graphene oxide photosensitive heterobilayer for efficient neuromorphics“. Nature Communications 13, Nr. 1 (25.08.2022). http://dx.doi.org/10.1038/s41467-022-32725-y.

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AbstractNeuromorphic electronics, which use artificial photosensitive synapses, can emulate biological nervous systems with in-memory sensing and computing abilities. Benefiting from multiple intra/interactions and strong light-matter coupling, two-dimensional heterostructures are promising synaptic materials for photonic synapses. Two primary strategies, including chemical vapor deposition and physical stacking, have been developed for layered heterostructures, but large-scale growth control over wet-chemical synthesis with comprehensive efficiency remains elusive. Here we demonstrate an interfacial coassembly heterobilayer films from perylene and graphene oxide (GO) precursors, which are spontaneously formed at the interface, with uniform bilayer structure of single-crystal perylene and well-stacked GO over centimeters in size. The planar heterostructure device exhibits an ultrahigh specific detectivity of 3.1 × 1013 Jones and ultralow energy consumption of 10−9 W as well as broadband photoperception from 365 to 1550 nm. Moreover, the device shows outstanding photonic synaptic behaviors with a paired-pulse facilitation (PPF) index of 214% in neuroplasticity, the heterosynapse array has the capability of information reinforcement learning and recognition.

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Fan, Ming. „A commentary of “Revealing the mechanism of photoperception regulating glucose metabolism”: Top 10 Scientific Advances of 2023, China“. Fundamental Research, März 2024. http://dx.doi.org/10.1016/j.fmre.2024.03.008.

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28

Blain-Hartung, Matthew, Nathan C. Rockwell und J. Clark Lagarias. „Natural diversity provides a broadspectrum of cyanobacteriochrome-based diguanylate cyclases“. Plant Physiology, 24.05.2021. http://dx.doi.org/10.1093/plphys/kiab240.

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Abstract Cyanobacteriochromes (CBCRs) are spectrally diverse photosensors from cyanobacteria distantly related to phytochromes that exploitphotoisomerization of linear tetrapyrrole (bilin) chromophores to regulate associated signaling output domains. Unlike phytochromes, a single CBCR domain is sufficient for photoperception. CBCR domains that regulate the production or degradation of cyclic nucleotide second messengers are becoming increasingly well characterized. Cyclic di-guanosine monophosphate (c-di-GMP) is a widespread small-molecule regulator of bacterial motility, developmental transitions, and biofilm formation whose biosynthesis is regulated by CBCRs coupled to GGDEF (diguanylate cyclase) output domains. In this study, we compare the properties of diverse CBCR-GGDEF proteins with those of synthetic CBCR-GGDEF chimeras. Our investigation shows that natural diversity generates promising candidates for robust, broad spectrum optogenetic applications in live cells. Since light quality is constantly changing during plant development as upper leaves begin to shade lower leaves—affecting elongation growth, initiation of flowering, and responses to pathogens, these studies presage application of CBCR-GGDEF sensors to regulate orthogonal, c-di-GMP-regulated circuits in agronomically important plants for robust mitigation of such deleterious responses under natural growing conditions in the field.

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Tian, Qi, Ping Tong, Gong Chen, Meichun Deng, Tian'e Cai, Runyi Tian, Zimin Zhang, Kun Xia und Zhengmao Hu. „GLRA2 gene mutations cause high myopia in humans and mice“. Journal of Medical Genetics, 08.04.2022, jmedgenet—2022–108425. http://dx.doi.org/10.1136/jmedgenet-2022-108425.

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BackgroundHigh myopia (HM) is a leading cause of blindness that has a strong genetic predisposition. However, its genetic and pathogenic mechanisms remain largely unknown. Thus, this study aims to determine the genetic profile of individuals from two large Chinese families with HM and 200 patients with familial/sporadic HM. We also explored the pathogenic mechanism of HM using HEK293 cells and a mouse model.MethodsThe participants underwent genome-wide linkage analysis and exome sequencing. Visual acuity, electroretinogram response, refractive error, optical parameters and retinal rod cell genesis were measured in knockout mice. Immunofluorescent staining, biotin-labelled membrane protein isolation and electrophysiological characterisation were conducted in cells transfected with overexpression plasmids.ResultsA novel HM locus on Xp22.2-p11.4 was identified. Variant c.539C>T (p.Pro180Leu) in GLRA2 gene was co-segregated with HM in the two families. Another variant, c.458G>A (p.Arg153Gln), was identified in a sporadic sample. The Glra2 knockout mice showed myopia-related phenotypes, decreased electroretinogram responses and impaired retinal rod cell genesis. Variants c.458G>A and c.539C>T altered the localisation of GlyRα2 on the cell membrane and decreased agonist sensitivity.ConclusionGLRA2 was identified as a novel HM-causing gene. Its variants would cause HM through altered visual experience by impairing photoperception and visual transmission.

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Lu, Ying, Wenhao Li, Yalin Li, Wanying Zhai, Xuming Zhou, Zhichao Wu, Shouwen Jiang et al. „Population genomics of an icefish reveals mechanisms of glacier-driven adaptive radiation in Antarctic notothenioids“. BMC Biology 20, Nr. 1 (13.10.2022). http://dx.doi.org/10.1186/s12915-022-01432-x.

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Abstract Background Antarctica harbors the bulk of the species diversity of the dominant teleost fish suborder—Notothenioidei. However, the forces that shape their evolution are still under debate. Results We sequenced the genome of an icefish, Chionodraco hamatus, and used population genomics and demographic modelling of sequenced genomes of 52 C. hamatus individuals collected mainly from two East Antarctic regions to investigate the factors driving speciation. Results revealed four icefish populations with clear reproduction separation were established 15 to 50 kya (kilo years ago) during the last glacial maxima (LGM). Selection sweeps in genes involving immune responses, cardiovascular development, and photoperception occurred differentially among the populations and were correlated with population-specific microbial communities and acquisition of distinct morphological features in the icefish taxa. Population and species-specific antifreeze glycoprotein gene expansion and glacial cycle-paced duplication/degeneration of the zona pellucida protein gene families indicated fluctuating thermal environments and periodic influence of glacial cycles on notothenioid divergence. Conclusions We revealed a series of genomic evidence indicating differential adaptation of C. hamatus populations and notothenioid species divergence in the extreme and unique marine environment. We conclude that geographic separation and adaptation to heterogeneous pathogen, oxygen, and light conditions of local habitats, periodically shaped by the glacial cycles, were the key drivers propelling species diversity in Antarctica.

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Zeitschriftenartikel zum Thema „Photoperception“

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