Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Light Signaling"”.
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Studies on Structure and Dynamics of Components of Phytochrome Mediated Light Signaling in Plants and Cyanobacteria
… a structural point of view, phytochrome mediated light signaling in plants and bacteria constitutes a scarcely understood system. Albeit the tremendous research activity in the field, no X-ray or NMR-based structural information is available. For the first time now, the crystal structures of two …
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The role of light signaling on astrocytic morphological plasticity in the adult male rat suprachiasmatic nucleus
… the suprachiasmatic nucleus (SCN). Environmental light signaling conveys time of day and seasonal changes to the SCN via the retinohypothalamic tract (RHT). The SCN then relays this information to the brain and the rest of the body through synaptic signaling and indirectly through circadian …
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Actin's role in signaling light-induced phase shifts in the mammalian circadian clock
… of hormone release in endocrine cells, and as a signaling component involved in transcription. My research focused on the hypothesis that changes in actin state contribute to light-induced changes in the state of the circadian clock in the mammalian brain. In early night, the cells of the …
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Structural and Spectroscopic Characterization of Modular Photoreceptors
Photoreceptors are signaling proteins that perceive a light signal and generate light-dependent biochemical responses. Cyanobacteriochromes (CBCRs) from photosynthetic cyanobacteria are an emerging family of bilin-based photoreceptors that are compact in size and diverse in absorption spectra. …
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Regulation of de-etiolation and stomatal opening responses by HYPOSENSITIVE TO LIGHT and HYPERSENSITIVE TO RED AND BLUE 1.
Light is an important environmental cue and regulates plant development processes including de-etiolation, phototropism, shade avoidance, photoperiodic flowering, stomatal movement and so on. In Chapter II, we reported cloning of an Arabidopsis light-signaling component, HYPOSENSITIVE TO LIGHT or …
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Diurnal and stimulated astrocyte morphology dynamics in the rodent central nervous system
… by protein reorganization and not turnover. Light is necessary for astrocyte rhythms, as both brain regions do not exhibit morphology changes in constant darkness. Light exposure at early night rapidly alters astrocyte branch complexity in both the DG and SCN, but in opposite ways. The effect …
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Analysis of phytochrome signaling pathways in Zea mays
… are photoreceptors that mediate red and far-red light signaling and control growth and development of plants in response to different light conditions. The genome of Arabidopsis, a dicot, contains five members of the phytochrome family, phyA-phyE. In contrast, genomes of monocots sequenced so far …
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The Function and Regulation of Photobodies in Phytochrome Signaling
<p>Light is a critical environmental signal that regulates every phase of the plant life cycle, from germination to floral initiation. Of the many light receptors in the model plant <italic>Arabidopsis thaliana</italic>, the red- and far-red light-sensing phytochromes (phys) are arguably the best …
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Bioenergetics and dynamics of ciliary responses and systems biology of phototaxis in Chlamydomonas reinhardtii
… This organism has the ability to track the light using its photoreceptor called rhodopsin, which overlays the eyespot. The organism makes decisions to swim toward, away from, perpendicular to or to ignore the light using its slender arm-like structures called cilia. It can integrate several …