Ultraviolet B radiation
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Hormone-controlled UV-B responses in plants Open
Ultraviolet B (UV-B) light is a portion of solar radiation that has significant effects on the development and metabolism of plants. Effects of UV-B on plants can be classified into photomorphogenic effects and stress effects. These effect…
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How plants protect themselves from ultraviolet-B radiation stress Open
Ultraviolet-B (UV-B) radiation has a wavelength range of 280–315 nm. Plants perceive UV-B as an environmental signal and a potential abiotic stress factor that affects development and acclimation. UV-B regulates photomorphogenesis includin…
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UVA Radiation Is Beneficial for Yield and Quality of Indoor Cultivated Lettuce Open
Understanding the wavelength dependence of plant responses is essential for optimizing production and quality of indoor plant cultivation. UVA is the main component of solar UV radiation, but its role on plant growth is poorly understood. …
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Effects of ultraviolet-B radiation on physiology, immune function and survival is dependent on temperature: implications for amphibian declines Open
Multiple environmental changes are thought to be contributing to the widespread decline of amphibians in montane regions, but interactions between drivers of decline are not well understood. It has been proposed previously that elevated ul…
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Orally administered mixed carotenoids protect human skin against ultraviolet A‐induced skin pigmentation: A double‐blind, placebo‐controlled, randomized clinical trial Open
Background Photoprotection of human skin is determined as the capacity of sunscreens to prevent ultraviolet (UV) B radiation‐induced erythema and UVA radiation‐induced pigmentation. It is unequivocal that, in addition to sunscreens, oral s…
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Drought, Low Nitrogen Stress, and Ultraviolet-B Radiation Effects on Growth, Development, and Physiology of Sweetpotato Cultivars during Early Season Open
Drought, ultraviolet-B (UV-B), and nitrogen stress are significant constraints for sweetpotato productivity. Their impact on plant growth and development can be acute, resulting in low productivity. Identifying phenotypes that govern stres…
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Daytime changes of skin biophysical characteristics: A study of hydration, transepidermal water loss, ph, sebum, elasticity, erythema, and color index on middle eastern skin Open
There are daytime changes in skin color index and pH. Skin color index might be higher and cutaneous pH more basic in the early morning compared to later of the day.
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Neferine prevents ultraviolet radiation‑induced skin photoaging Open
The aim of the present study was to evaluate the anti-photoaging effect of neferine upon exposure of mice to ultraviolet (UV) radiation. An in vivo photoaging model was established by repeatedly exposing mouse dorsal skin to UV-A and UV-B …
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Ultraviolet-b Radiation: A Potent Regulator Of Flavonoids Biosynthesis, Accumulation And Functions In Plants Open
Flavonoids represent a diverse group of polyphenolic secondary metabolites which are distributed amongst most of the plant species.Ultraviolet-B (UV-B) radiation is one of the important environmental regulators which governs the flavonoids…
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Solar ultraviolet A radiation and nonmelanoma skin cancer in Arica, Chile Open
In this work, we present the maximum daily values of solar ultraviolet A radiation (UV-A) as a function of time. The results indicated that such values reached a maximum of 93.9 W/m2 in 2010 and a minimum of 16.5 W/m2 in 2012. The annual a…
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Distinct physiological and metabolic reprogramming by highbush blueberry (<i>Vaccinium corymbosum</i>) cultivars revealed during long‐term <span>UV</span>‐B radiation Open
Despite the Montreal protocol and the eventual recovery of the ozone layer over Antarctica, there are still concerns about increased levels of ultraviolet‐B ( UV ‐B) radiation in the Southern Hemisphere. UV ‐B induces physiological, bioche…
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In vitro ultraviolet radiation effects on growth, chemical constituents and molecular aspects of Spathiphyllum plant Open
Background Spathiphyllum is one of the best plants for indoor gardening as it is a rhizome and undemanding of light care. It is a member of lily family (Araceae). The plant itself should live for 10 years or more if not maltreated. Spthiph…
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Ultraviolet-B Radiation Alters Soybean Growth and Seed Quality Open
Research on the effects of ultraviolet-B (UV-B) radiation on soybean seed quality is limited. The objective of this study was to quantify UV-B doses, 0, 5, 10 & 15 kJ•m–2•d–1, on soybean growth and seed quality. The experiment was conducte…
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Low Fluence Ultraviolet-B Promotes Ultraviolet Resistance 8-Modulated Flowering in Arabidopsis Open
Ultraviolet-B (UV-B) irradiation (280–320 nm) is an integral part of sunlight and a pivotal environmental cue that triggers various plant responses, from photoprotection to photomorphogenesis and metabolic processes. UV-B is perceived by U…
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Impact on quality of life in vitiligo patients treated with narrowband ultraviolet B phototherapy Open
This study showed that phototherapy had a positive therapeutic outcome in vitiligo, especially in younger patients. Even a small, depigmented lesion in a child could be psychosocially devastating.
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A novel UV-B priming system reveals an UVR8-depedent memory, which provides resistance against UV-B stress in Arabidopsis leaves Open
Single treatment of plants with pathogens like Pseudomonas syringae can trigger systemic acquired resistance (SAR) that lasts several days to several weeks in Arabidopsis thaliana. Similar primed resistances were described for abiotic stre…
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The differing responses of central carbon cycle metabolism in male and female Sargassum thunbergii to ultraviolet-B radiation Open
The enhancement of ultraviolet-B radiation (UV-B) radiation reaching the Earth’s surface due to ozone layer depletion is an important topic. Macroalgal species growing in the intertidal zone are often directly exposed to UV-B radiation per…
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Prediction of Phenolic Contents Based on Ultraviolet-B Radiation in Three-Dimensional Structure of Kale Leaves Open
Ultraviolet-B (UV-B, 280–315 nm) radiation has been known as an elicitor to enhance bioactive compound contents in plants. However, unpredictable yield is an obstacle to the application of UV-B radiation to controlled environments such as …
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Purple Cabbage Extract Cream Effect on Erythema Score of Male Wistar Rats Back Skin Exposed to UV-B Radiation Open
Introduction People in a tropical country with sun exposure 10-12 hours per day are susceptible to skin damage and premature aging of the skin.1,2,3 The UVR spectrum (Ultraviolet Radiation) consists of UV-A, UV-B, and UV-C. UV-A and UV-B c…
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Preharvest UV-B Treatment Improves Strawberry Quality and Extends Shelf Life Open
Postharvest ultraviolet B (UV-B) radiation has been used to control pathogen incidence on fresh produce, but little attention has been paid to preharvest UV-B effect on strawberry fruit quality and storage. In this study, strawberry (Fraga…
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Response of conifers to UV-B and climate in mountain areas Open
The present study was focused to examine the combined effects of climate and ultraviolet-B radiation on conifer tree-ring density. Statistical methods were employed to extract tree responses in annual ring density and to identify functiona…
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Ambient ultraviolet-B radiation, supplements and other factors interact to impact vitamin D status differently depending on ethnicity: A cross-sectional study Open
Vitamin D deficiency was widespread, particularly among non-White individuals. UVB was a strong predictor of 25(OH)D and the effect was modified by other factors. Findings suggest that accurately measured ambient-UVB radiation and interact…
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Evaluation of weather and environmental factors and their association with cutaneous melanoma incidence: A national ecological study Open
This study further substantiates associations between specific environmental factors and CM incidence.
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Itch Relief in Atopic Dermatitis: Comparison of Narrowband Ultraviolet B Radiation and Cyclosporine Treatment Open
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Salicylic Acid and UV-B/C Radiation Effects on Growth and Physiological Traits of <i>Satureja hortensis</i> L. Open
Higher UV irradiation may affect the structure of ecosystems directly or indirectly. In the present work, Satureja hortensis L. defence mechanisms against UV stress was studied with or without salicylic acid (SA). For this aim, a factorial…
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Comparison of UVA vs UVB Photoaging Rat Models in Short-term Exposure Open
Background: Prolonged exposure to sunlight is known to induce photoaging of the skin, leading to various skin changes and disorders, such as dryness, wrinkles, irregular pigmentation, and even cancer. Ultraviolet A (UVA) and ultraviolet B …
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Abscisic Acid Inhibits Cortical Microtubules Reorganization and Enhances Ultraviolet-B Tolerance in Arabidopsis thaliana Open
Ultraviolet-B (UV-B) radiation is one of the important environmental factors limiting plant growth. Both abscisic acid (ABA) and microtubules have been previously reported to be involved in plant response to UV-B. However, whether there is…
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The use of Janus kinase inhibitors and narrowband ultraviolet B combination therapy in non‐segmental vitiligo Open
Vitiligo is a depigmentation disorder of the skin that occurs secondary to the destruction of melanocytes by an immune‐mediated process. Vitiligo clinically presents with depigmented macules and patches, most commonly on the face, acral si…
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The role of Hrd1 in ultraviolet (UV) radiation induced photoaging Open
The purpose of the present study was to evaluate the role of Hrd1 in the ultraviolet (UV) radiation induced photoaging and explore its potential mechanism. The nude mice were exposed to the UVA/UVB irradiation for 10 weeks. The animals wer…
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Effects of Ultraviolet-B Radiation in Plant Physiology Open
Over the past few decades, anthropogenic activities contributed to the depletion of the ozone layer, which increased the levels of solar ultraviolet-B (UV-B) radiation reaching the Earth`s surface. Generally, UV-B is harmful to all living …