Results 21 to 30 of about 308,277 (312)

The differing responses of central carbon cycle metabolism in male and female Sargassum thunbergii to ultraviolet-B radiation

open access: yesFrontiers in Plant Science, 2022
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 periodically as ...
Yan Sun   +12 more
doaj   +1 more source

Developmental stage is an important factor that determines the antioxidant responses of young and old grapevine leaves under UV irradiation in a green-house. [PDF]

open access: yes, 2012
The impact of UV irradiation was studied on photosynthesis, photosystem II photochemical yields and antioxidant responses using green-house grown grapevine (Vitis vinifera L. cv. Chardonnay) leaves.
Éva Hideg   +3 more
core   +1 more source

Physiological response and molecular mechanisms against UV-B radiation in Brachionus asplanchnoidis (Rotifera)

open access: yesEcotoxicology and Environmental Safety, 2023
Ultraviolet B (UV-B, 280–320 nm) radiation is a major environmental stressor for aquatic organisms on Earth's surface. Its effects on biological systems are well known, but the mechanisms by which organisms respond and adapt to UV-B radiation are still ...
Dongqi Kan   +8 more
doaj   +1 more source

Effects of silicate application on CH4 and N2O emissions and global warming potentials in paddy soil under enhanced UV‐B radiation

open access: yesEnergy Science & Engineering, 2019
Enhanced ultraviolet‐B (UV‐B) radiation is induced by the depletion of the stratospheric ozone layer. Silicate is beneficial to rice growth and can increase the resistance of rice plant to UV‐B radiation, but so far few reports have been available on ...
Yunsheng Lou   +5 more
doaj   +1 more source

UV radiation increases mortality and decreases the antioxidant activity in a tephritid fly

open access: yesFood and Energy Security, 2021
Ultraviolet (UV) radiation has been widely used to monitor insects and conduct surface sterilizations at 365 nm and 254 nm wavelengths, respectively. The global increase in the use of UV light has raised concerns about environmental impacts and effects ...
Hongying Cui   +5 more
doaj   +1 more source

UV-B Radiations and Secondary Metabolites

open access: yesTurkish Journal of Agriculture - Food Science and Technology, 2020
Ultraviolet-B (UV-B: 280 to 320 nm) radiations have appeared to be detrimental to plants, due to their damaging effects on proteins, lipids, membranes and DNA. UV-B radiations are a significant regulator of plants‘ secondary metabolites. High intensity of ultraviolet radiations may interfere with growth and productivity of crops. But low levels of UV-B
İlkay Yavaş   +3 more
openaire   +3 more sources

Impact of UV-B radiation on microalgae and bacteria: a mesocosm study with computer modulated UV-B radiation addition [PDF]

open access: yesAquatic Microbial Ecology, 2001
Effects of ambient and enhanced UV-B radiation (UVBR) on marine microbial plankton communities were assessed in a model ecosystem at Kristineberg Marine Research Station (KMRS) on the Swedish west coast. The system consisted of 16 aquaria (40 l) filled with surface seawater and semicontinuously run by replacing 10 l of their contents with filtered ...
SÅ Wängberg   +3 more
openaire   +1 more source

Short-term UV-B radiation effects on morphology, physiological traits and accumulation of bioactive compounds in Prunella vulgaris L.

open access: yesJournal of Plant Interactions, 2017
Prunella vulgaris plants (full-bloom stage) were subjected to short-term (15 days) UV-B radiation in a growth chamber. UV-B radiation was effective at enhancing morphological and biomass characteristics and decreasing chlorophyll contents of P. vulgaris.
Xue-Rong Zhang   +7 more
doaj   +1 more source

Deciduous and evergreen tree responses to enhanced UV-B treatment during three years

open access: yesActa Biologica Slovenica, 2013
This paper reports a study of the strategies in Norway spruce (Picea abies (L.) Karst.) and European beech (Fagus sylvatica L.) for coping with enhanced UV-B radiation. Trees, as plants in general, possess diverse systems which respond to UV-B radiation.
Tadeja Trošt Sedej, Dušan Rupar
doaj   +1 more source

UV-B radiation and soil microbial communities [PDF]

open access: yesNature., 2003
Soil microorganisms regulate the supply of nitrogen to plants and so are important controllers of plant productivity and ecosystem carbon sequestration. Johnson et al.1 report that exposure of a subarctic heath ecosystem to increased ultraviolet-B (UV-B) irradiation causes a drastic decline in the mass ratio of C:N in soil microorganisms, which would ...
Johnson, David   +4 more
  +6 more sources

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