Results 1 to 10 of about 30,679 (274)

Brazilian Consensus on Photoprotection [PDF]

open access: yesAnais Brasileiros de Dermatologia, 2014
Brazil is a country of continental dimensions with a large heterogeneity of climates and massive mixing of the population. Almost the entire national territory is located between the Equator and the Tropic of Capricorn, and the Earth axial tilt to the ...
Sérgio Schalka   +24 more
doaj   +7 more sources

High‐Throughput Screen of NPQ in Sorghum Shows Highly Polygenic Architecture of Photoprotection [PDF]

open access: yesPlant-Environment Interactions
Natural genetic variation in photosynthesis and photoprotection within crop germplasm represents an untapped resource for crop improvement. Sorghum bicolor (sorghum) is one of the world's most widely grown crops, yet the genetic basis of photoprotection ...
Richard L. Vath   +9 more
doaj   +2 more sources

Dissecting the contributions to non-photochemical quenching in a land plant under fluctuating light [PDF]

open access: yesNature Communications
Photosynthetic organisms have evolved multiple non-photochemical quenching (NPQ) processes, providing photoprotection by safely dissipating excess excitation energy.
Lam Lam   +9 more
doaj   +2 more sources

Accuracy and adequacy of photoprotection in pediatric systemic lupus erythematosus patients, and the effect of education on photoprotection: a prospective study

open access: yesPediatric Rheumatology Online Journal, 2023
Background Systemic lupus erythematosus (SLE) is a systemic autoimmune disease that is associated with multiple organ involvement and leads to significant morbidity and mortality.
Porntipa Suebsarakam, Dara Mairiang
doaj   +1 more source

N6-methyladenosine RNA modification regulates photosynthesis during photodamage in plants

open access: yesNature Communications, 2022
Efficient photoprotection is vital for the maintenance of photosynthetic efficiency during photodamage. Here, the authors reveal that m6A writer VIRILIZER acts as a molecular switch of photoprotection by post-transcriptional regulation in plants.
Man Zhang   +13 more
doaj   +1 more source

Widening the landscape of transcriptional regulation of green algal photoprotection

open access: yesNature Communications, 2023
Availability of light and CO2, substrates of microalgae photosynthesis, is frequently far from optimal. Microalgae activate photoprotection under strong light, to prevent oxidative damage, and the CO2 Concentrating Mechanism (CCM) under low CO2, to raise
Marius Arend   +5 more
doaj   +1 more source

Light-independent regulation of algal photoprotection by CO2 availability

open access: yesNature Communications, 2023
Photosynthetic algae have evolved mechanisms to cope with suboptimal light and CO2 conditions. When light energy exceeds CO2 fixation capacity, Chlamydomonas reinhardtii activates photoprotection, mediated by LHCSR1/3 and PSBS, and the CO2 Concentrating ...
M. Águila Ruiz-Sola   +18 more
doaj   +1 more source

Determination of sun exposure and photoprotection habits in individuals who perform outdoor exercises, in the Venezuelan Andean region

open access: yesIatreia, 2023
Background: Frequent and indiscriminate sun exposure has determined an increase in skin cancer rates globally. In Venezuela, reports evaluating sun exposure practices and the use of photoprotection measures are limited.
Aguasanta González-Delatorre   +3 more
doaj   +1 more source

Rapid colour changes in Euglena sanguinea (Euglenophyceae) caused by internal lipid globule migration [PDF]

open access: yes, 2018
The accumulation of red pigments under chronic stress is a response observed in most groups of oxygenic photoautotrophs. It is thought that the red pigments in the cell shield the chlorophyll located underneath from the light. Among these red pigments,
Abramoff M.D.   +11 more
core   +3 more sources

Implications of visible light and means of photoprotection

open access: yesJournal of Photochemistry and Photobiology, 2023
Visible light (VL) has been shown to promote genotoxicity through free radical generation and structural protein degradation. These stressful events promote cellular vulnerability, which manifests clinically as erythema, hyperpigmentation, and photoaging.
Brittany Lane   +4 more
doaj   +1 more source

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