Results 41 to 50 of about 455,753 (356)

POLLEN AND POLLEN ENZYMES

open access: yesAmerican Journal of Botany, 1921
"Reprinted from the American journal of botany, vol. VIII, no. 10, December 1921." ; Thesis note stamped on cover. ; The author's doctoral dissertation, Yale University, 1920, but not published as a thesis. ; Cover-title. ; Bibliography: p. 499-501. ; Mode of access: Internet.
openaire   +2 more sources

Gelechiidae Moths Are Capable of Chemically Dissolving the Pollen of Their Host Plants [PDF]

open access: yes, 2011
Background: Many insects feed on pollen surface lipids and contents accessible through the germination pores. Pollen walls, however, are not broken down because they consist of sporopollenin and are highly resistant to physical and enzymatic damage. Here
Chen, Shi   +4 more
core   +1 more source

Structural and Functional Characterization of EXPO‐Derived Extracellular Vesicles in Plants

open access: yesAdvanced Science, EarlyView.
In this study, 3D electron tomography (ET), cryo‐ET, and immunogold transmission electron microscopy (TEM) are employed to characterize plant extracellular vesicles (EVs) under physiological conditions. EVs are classified into three distinct categories according to their size, content, and molecular‐marker profiles. Furthermore, Exo70E2‐positive medium
Jiayang Gao   +12 more
wiley   +1 more source

Getting to the heart of cardiovascular evolution in humans

open access: yeseLife, 2019
Differences in the response of cardiomyocytes to oxygen deprivation in humans and chimpanzees may explain why humans are more prone to certain heart diseases.
Alex Pollen, Bryan J Pavlovic
doaj   +1 more source

Land-Use and Height of Pollen Sampling Affect Pollen Exposure in Munich, Germany

open access: yesAtmosphere, 2020
Airborne pollen concentrations vary depending on the location of the pollen trap with respect to the pollen sources. Two Hirst-type pollen traps were analyzed within the city of Munich (Germany): one trap was located 2 m above ground level (AGL) and the ...
Jesús Rojo   +8 more
doaj   +1 more source

Multifunctional Bracts in the Dove Tree Davidia involucrata (Nyssaceae:Cornales) [PDF]

open access: yes, 2008
Although there has been much experimental work on floral traits that are under selection from mutualists and antagonists, selection by abiotic environmental factors on flowers has been largely ignored.
Gong, Yan-Bing   +3 more
core   +1 more source

Chromatin Topology Reconfiguration Orchestrates Thermotolerant Male Fertility via GhAL5 in Cotton

open access: yesAdvanced Science, EarlyView.
This study investigates cotton’s high‐temperature (HT) response using multi‑omics. Dynamic 3D genome changes drive expression bias affecting male fertility. The tolerant line shows controlled chromatin dynamics, while the sensitive line exhibits overactivation.
Yanlong Li   +15 more
wiley   +1 more source

Pollen grading prediction scale for patients with Artemisia pollen allergy in China: A 3‐day moving predictive model

open access: yesClinical and Translational Allergy, 2023
Background Artemisia pollen is the most prevalent outdoor aeroallergen causing respiratory allergies in Beijing, China. Pollen allergen concentrations have a direct impact on the quality of life of those suffering from allergies.
Zhaoyin Yin   +3 more
doaj   +1 more source

Flower Biology of Two Diospyros Species Neighborly Live at Csc Area: Do Pollen Viability and Tube Growth Rate Shire Endemic Distribution [PDF]

open access: yes, 2008
Aims of study were to compare flower structure, pollen viability and pollen tube growth rate of two Diospyros species neighborly live in Cibinong Science Centre (CSC) park, Diospyros blancoi and D.
Rachman, E. (Erlin)
core  

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

open access: yesAdvanced Science, EarlyView.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır   +4 more
wiley   +1 more source

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