Results 21 to 30 of about 78,895 (217)

Hyperbaric intervention ameliorates the negative effects of long-term high-altitude exposure on cognitive control capacity

open access: yesFrontiers in Physiology
IntroductionHypoxia due to reduced partial pressure of oxygen from high-altitude exposure affects the cognitive function of high-altitude migrants. Executive function is an important component of human cognitive function, characterized by high oxygen ...
Hong Ren   +4 more
doaj   +1 more source

Truncated Hemoglobins 1 and 2 Are Implicated in the Modulation of Phosphorus Deficiency-Induced Nitric Oxide Levels in Chlamydomonas

open access: yesCells, 2019
Truncated hemoglobins (trHbs) form a widely distributed family of proteins found in archaea, bacteria, and eukaryotes. Accumulating evidence suggests that trHbs may be implicated in functions other than oxygen delivery, but these roles are largely ...
Valentina Filina   +2 more
doaj   +1 more source

Photoprotective Acclimation of the Arabidopsis thaliana Leaf Proteome to Fluctuating Light

open access: yesFrontiers in Genetics, 2020
Plants are subjected to strong fluctuations in light intensity in their natural growth environment, caused both by unpredictable changes due to weather conditions and movement of clouds and upper canopy leaves and predictable changes during day-night ...
Stefan Niedermaier   +6 more
doaj   +1 more source

Tropical Trees Will Need to Acclimate to Rising Temperatures—But Can They?

open access: yesPlants, 2023
For tropical forests to survive anthropogenic global warming, trees will need to avoid rising temperatures through range shifts and “species migrations” or tolerate the newly emerging conditions through adaptation and/or acclimation.
Kenneth J. Feeley   +3 more
doaj   +1 more source

Dose-effect of exercise intervention on heart rate variability of acclimatized young male lowlanders at 3,680 m

open access: yesFrontiers in Physiology
This study investigated whether exercise could improve the reduced HRV in an environment of high altitude. A total of 97 young, healthy male lowlanders living at 3,680 m for >1 year were recruited. They were randomized into four groups, of which three
Rui Su   +11 more
doaj   +1 more source

Cellular plasticity facilitates phenotypic change in a dominant coral’s Symbiodiniaceae assemblage

open access: yesFrontiers in Ecology and Evolution, 2023
Coral-associated dinoflagellates (Symbiodiniaceae) are photosynthetic endosymbionts that influence coral acclimation, as indicated by photo-endosymbiotic phenotypic variance across different environmental conditions.
Colin J. Anthony   +3 more
doaj   +1 more source

The neuroimmune pathway of high-altitude adaptation: influence of erythrocytes on attention networks through inflammation and the autonomic nervous system

open access: yesFrontiers in Neuroscience
IntroductionMany studies have shown that the functional adaptation of immigrants to high-altitude is closely related to oxygen transport, inflammatory response and autonomic nervous system.
Nian-Nian Wang   +15 more
doaj   +1 more source

Gas exchanges and growth of passion fruit seedlings under salt stress and hydrogen peroxide

open access: yesPesquisa Agropecuária Tropical, 2019
The semi-arid region of the Brazilian Northeast has adequate edaphoclimatic conditions for the passion fruit production, but the water used for irrigation commonly has high concentrations of salts that are harmful to the plant growth and development.
André Alisson Rodrigues da Silva   +5 more
doaj   +1 more source

Narrow-Band 311 nm Ultraviolet-B Radiation Evokes Different Antioxidant Responses from Broad-Band Ultraviolet

open access: yesPlants, 2021
Supplemental narrow-band 311 nm UV-B radiation was applied in order to study the effect of this specific wavelength on tobacco as a model plant. UV-B at photon fluxes varying between 2.9 and 9.9 μmol m−2 s−1 was applied to supplement 150 μmol m−2 s−1 ...
Arnold Rácz, Éva Hideg
doaj   +1 more source

Co-limitation of resources reveals adaptations of a tropical tree to heterogeneous environments along an elevational cline

open access: yesFrontiers in Forests and Global Change, 2023
IntroductionPlant species often exhibit significant variation in functional traits in populations along elevational gradients to cope with varying stress conditions.
Indira Paudel   +3 more
doaj   +1 more source

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