Results 11 to 20 of about 3,699,197 (346)

Red light represses the photophysiology of the scleractinian coral Stylophora pistillata. [PDF]

open access: yesPLoS ONE, 2014
Light spectrum plays a key role in the biology of symbiotic corals, with blue light resulting in higher coral growth, zooxanthellae density, chlorophyll a content and photosynthesis rates as compared to red light.
Tim Wijgerde   +6 more
doaj   +1 more source

The Interaction Between Nitrogen Supply and Light Quality Modulates Plant Growth and Resource Allocation

open access: yesFrontiers in Plant Science, 2022
Nitrogen availability and light quality affect plant resource allocation, but their interaction is poorly understood. Herein, we analyzed the growth and allocation of dry matter and nitrogen using lettuce (Lactuca sativa L.) as a plant model in a ...
Ying Liang   +5 more
doaj   +1 more source

A CRY-BIC negative-feedback circuitry regulating blue light sensitivity of Arabidopsis. [PDF]

open access: yes, 2017
Cryptochromes are blue light receptors that regulate various light responses in plants. Arabidopsis cryptochrome 1 (CRY1) and cryptochrome 2 (CRY2) mediate blue light inhibition of hypocotyl elongation and long-day (LD) promotion of floral initiation. It
Gu, Lianfeng   +15 more
core   +2 more sources

Phytochrome A mediates blue-light enhancement of second-positive phototropism in Arabidopsis [PDF]

open access: yes, 2016
Hypocotyl phototropism of etiolated Arabidopsis seedlings is primarily mediated by the blue-light receptor kinase phototropin 1 (phot1). Phot1-mediated curvature to continuous unilateral blue light irradiation (0.5 µmol m-2 s-1) is enhanced by overhead ...
Christie, John   +4 more
core   +2 more sources

Blue light regenerates functional visual pigments in mammals through a retinyl-phospholipid intermediate. [PDF]

open access: yes, 2017
The light absorbing chromophore in opsin visual pigments is the protonated Schiff base of 11-cis-retinaldehyde (11cRAL). Absorption of a photon isomerizes 11cRAL to all-trans-retinaldehyde (atRAL), briefly activating the pigment before it dissociates ...
Fain, Gordon L   +6 more
core   +1 more source

Adding Blue to Red Supplemental Light Increases Biomass and Yield of Greenhouse-Grown Tomatoes, but Only to an Optimum

open access: yesFrontiers in Plant Science, 2019
Greenhouse crop production in northern countries often relies heavily on supplemental lighting for year-round yield and product quality. Among the different spectra used in supplemental lighting, red is often considered the most efficient, but plants do ...
Elias Kaiser   +5 more
doaj   +1 more source

Combined Analysis of the Effects of Exposure to Blue Light in Ducks Reveals a Reduction in Cholesterol Accumulation Through Changes in Methionine Metabolism and the Intestinal Microbiota

open access: yesFrontiers in Nutrition, 2021
Monochromatic light is widely used in industry, medical treatment, and animal husbandry. Green-blue light has been found to stimulate the proliferation of satellite cells and the results of studies on the effects of blue light on poultry vary widely.
Daiyang Xia   +12 more
doaj   +1 more source

Effect of selected luminescent layers on CCT, CRI, and response times [PDF]

open access: yes, 2019
Phosphors have been used as wavelength converters in illumination for many years. When it is excited with blue light, the frequently used yttrium aluminium garnet doped with cerium (YAG:Ce) phosphor converts a part of blue light to a wideband yellow ...
Jargus, Jan   +4 more
core   +1 more source

A Search for Candidate Light Echoes: Photometry of Supernova Environments [PDF]

open access: yes, 1999
Supernova (SN) light echoes could be a powerful tool for determining distances to galaxies geometrically, Sparks 1994. In this paper we present CCD photometry of the environments of 64 historical supernovae, the first results of a program designed to ...
Boffi, F. R.   +2 more
core   +2 more sources

Induction of Skin Cancer by Long-Term Blue Light Irradiation

open access: yesBiomedicines, 2023
Presently, people are not only exposed to sunlight but also to a large amount of blue light from personal computers and smartphones. This blue light has various effects on the living body.
Keiichi Hiramoto   +4 more
doaj   +1 more source

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