Results 11 to 20 of about 298,868 (346)

Allergenic pollen and pollen allergy in Europe

open access: yesAllergy, 2007
The allergenic content of the atmosphere varies according to climate, geography and vegetation. Data on the presence and prevalence of allergenic airborne pollens, obtained from both aerobiological studies and allergological investigations, make it possible to design pollen calendars with the approximate flowering period of the plants in the sampling ...
G. D'Amato   +8 more
semanticscholar   +7 more sources

Pollen and Pollen Enzymes [PDF]

open access: greenAmerican Journal of Botany, 1921
A review of the literature shows very few complete or satisfactory reports of experiments in regard to either the general chemistry or the enzymes of pollen. Our knowledge of the subject seems to be very fragmentary. It is conspicuous by its omission from the textbooks of botany.
Julia Bayles Paton
openalex   +4 more sources

Projected climate-driven changes in pollen emission season length and magnitude over the continental United States

open access: yesNature Communications, 2022
Atmospheric conditions affect the release of anemophilous pollen, and the timing and magnitude will be altered by climate change. As simulated with a pollen emission model and future climate data, warmer end-of-century temperatures (4–6 K) shift the ...
Yingxiao Zhang, A. Steiner
semanticscholar   +1 more source

Anthropogenic climate change is worsening North American pollen seasons

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance Human-caused climate change could impact respiratory health, including asthma and allergies, through temperature-driven increases in airborne pollen, but the long-term continental pollen trends and role of climate change in pollen patterns ...
W. Anderegg   +5 more
semanticscholar   +1 more source

Bee Pollen: Current Status and Therapeutic Potential

open access: yesNutrients, 2021
Bee pollen is a combination of plant pollen and honeybee secretions and nectar. The Bible and ancient Egyptian texts are documented proof of its use in public health.
S. Khalifa   +14 more
semanticscholar   +1 more source

Higher airborne pollen concentrations correlated with increased SARS-CoV-2 infection rates, as evidenced from 31 countries across the globe

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance Coexposure to airborne pollen enhances susceptibility to respiratory viral infections, regardless of the allergy status. We hypothesized this could be also true for SARS-CoV-2 infections.
A. Damialis   +13 more
semanticscholar   +1 more source

Pollen biology and hormesis: Pollen germination and pollen tube elongation

open access: yesScience of The Total Environment, 2021
This paper evaluated the occurrence of hormetic dose responses in pollen reported over the past eight decades. Hormetic doses responses were induced by a wide range of chemical and physical agents in 34 plant species for pollen germination and pollen tube growth/elongation.
Evgenios Agathokleous   +1 more
openaire   +4 more sources

The effects of climate change on respiratory allergy and asthma induced by pollen and mold allergens

open access: yesAllergy. European Journal of Allergy and Clinical Immunology, 2020
The impact of climate change on the environment, biosphere, and biodiversity has become more evident in the recent years. Human activities have increased atmospheric concentrations of carbon dioxide (CO2) and other greenhouse gases. Change in climate and
G. D'Amato   +16 more
semanticscholar   +1 more source

Pollen Germination and Pollen Tube Growth in Gymnosperms [PDF]

open access: yesPlants, 2021
Pollen germination and pollen tube growth are common to all seed plants, but these processes first developed in gymnosperms and still serve for their successful sexual reproduction. The main body of data on the reproductive physiology, however, was obtained on flowering plants, and one should be careful to extrapolate the discovered patterns to ...
Maria Breygina   +2 more
openaire   +4 more sources

Synergistic health effects of air pollution, temperature, and pollen exposure: a systematic review of epidemiological evidence

open access: yesEnvironmental Health, 2020
Background Exposure to heat, air pollution, and pollen are associated with health outcomes, including cardiovascular and respiratory disease. Studies assessing the health impacts of climate change have considered increased exposure to these risk factors ...
S. Anenberg   +4 more
semanticscholar   +1 more source

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