Results 51 to 60 of about 293,429 (371)
Hosts, microbiomes, and the evolution of critical windows
Evolution Letters, Volume 6, Issue 6, Page 412-425, December 2022., 2022 Abstract The absence of microbial exposure early in life leaves individuals vulnerable to immune overreaction later in life, manifesting as immunopathology, autoimmunity, or allergies. A key factor is thought to be a “critical window” during which the host's immune system can “learn” tolerance, and beyond which learning is no longer possible.
C. Jessica E. Metcalf +3 more
wiley +1 more source
Advances in Plant Regeneration: Shake, Rattle and Roll
Plants, 2020 Some plant cells are able to rebuild new organs after tissue damage or in response to definite stress treatments and/or exogenous hormone applications. Whole plants can develop through de novo organogenesis or somatic embryogenesis.
Sergio Ibáñez +3 more
doaj +1 more source
Arabidopsis pollen tube integrity and sperm release are regulated by RALF-mediated signaling
Science, 2017 Timing a switch in tissue integrity In plants, sperm cells travel through the pollen tube as it grows toward the ovule. Successful fertilization depends on the pollen tube rupturing to release the sperm cells (see the Perspective by Stegmann and Zipfel).
Zengxiang Ge +20 more
semanticscholar +1 more source
Frontiers in Plant Science, 2022 Geitonogamy is inevitable in hermaphrodite and monecious. Even for self-incompatible species, the negative effects of self-pollen are unavoidable when geitonogamous or self-mating occurs.
Chun-Hui Wang +4 more
doaj +1 more source
Wavelet Based Fractal Analysis of Airborne Pollen [PDF]
, 1998 The most abundant biological particles in the atmosphere are pollen grains and spores. Self protection of pollen allergy is possible through the information of future pollen contents in the air. In spite of the importance of airborne pol len concentration forecasting, it has not been possible to predict the pollen concentrations with great accuracy ...
arxiv +1 more source
Pollen and spore monitoring in the world
Clinical and Translational Allergy, 2018 BackgroundAmbient air quality monitoring is a governmental duty that is widely carried out in order to detect non-biological (“chemical”) components in ambient air, such as particles of 500).
Jeroen Buters +7 more
semanticscholar +1 more source
Seasonal variation in diurnal atmospheric grass pollen concentration profiles [PDF]
Biogeosciences, 2014 In this study, the diurnal atmospheric grass pollen concentration profile within the Danish city of Aarhus was shown to change in a systematic manner as the pollen season progressed.
R. G. Peel +7 more
doaj +1 more source
From trees to rain: Enhancement of cloud glaciation and precipitation by pollen [PDF]
arXiv, 2023 The ability of pollen to enable the glaciation of supercooled liquid water has been demonstrated in laboratory studies; however, the potential large-scale effect of trees and pollen on clouds, precipitation and climate is pressing knowledge to better understand and project clouds in the current and future climate. Combining ground-based measurements of
arxiv
Food Science &Nutrition, Volume 11, Issue 1, Page 470-480, January 2023., 2023 The obtained results are useful for designing conservation strategies for the germplasm as well as implementing breeding programs such as introducing cultivars with different goals such as early or late ripening and seedless, non‐astringent, large, and deeper color‐fruits.
Ali Khadivi +3 more
wiley +1 more source
Proceedings of the National Academy of Sciences of the United States of America, 2016 Significance Bees pollinate the majority of flowering plant species, including agricultural crops. The pollen they obtain is their main protein and lipid source that fuels development and reproduction.
A. Vaudo +4 more
semanticscholar +1 more source