Identifying Urban Sources as Cause of Elevated Grass Pollen Concentrations using GIS and Remote Sensing [PDF]
We examine here the hypothesis that during flowering, the grass pollen concentrations at a specific site reflect the distribution of grass pollen sources within a few kilometres of this site.We perform this analysis on data from a measurement campaign in
Becker, T. +10 more
core +4 more sources
Pollen elicits proboscis extension but does not reinforce PER learning in honeybees [PDF]
The function of pollen as a reward for foraging bees is little understood, though there is evidence to suggest that it can reinforce associations with visual and olfactory floral cues.
Casteel +10 more
core +2 more sources
Oviposition by the Banded Sunflower Moth, \u3ci\u3eCochylis Hospes\u3c/i\u3e (Lepidoptera: Cochylidae) in Response to \u3ci\u3eHelianthus Annuus\u3c/i\u3e Pollen [PDF]
Oviposition on an artificial substrate by the banded sunflower moth Cochylis hospes Walsingham was examined in response to sunflower pollen (Helianthus annuus) and sunflower pollen extract.
Barker, John F, Grugel, Sharon
core +2 more sources
Pollen Sporoplasts: Dissolution of Pollen Walls [PDF]
4-Methylmorpholine N-oxide monohydrate (MMNO.H(2)O), a potent solvent for polysaccharides, is an effective vehicle for release of membrane-enclosed male gametophytes (sporoplasts) from spore walls. This release occurs in minutes when pollen (Lilium longiflorum Thunb.) is suspended in a melt of MMNO.H(2)O at 75 degrees C. Continued heating at 75 degrees
F A, Loewus +4 more
openaire +2 more sources
The rising tide of photographs: Not drowning but waving?
Concerns about the huge quantities of photographs circulating in digital networks have led some to proclaim that we are now drowning in images. This article surveys these anxieties by examining the work of artists who use photography’s scale, and ...
Annebella Pollen
doaj +1 more source
Understanding emissions of ammonia from buildings and the application of fertilizers: an example from Poland [PDF]
A Europe-wide dynamic ammonia (NH3) emissions model has been applied for one of the large agricultural countries in Europe, and its sensitivity on the distribution of emissions among different agricultural functions was analyzed by comparing with ...
M. Werner +4 more
doaj +1 more source
Suitability of leguminous cover crop pollens as food source for the green lacewing Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae). [PDF]
Diversification of crops with species that provide suitable pollen for predators may reduce pest population on crops by enhancing predator effectiveness.
Euzébio, Denise E. +4 more
core +2 more sources
Heteranthery in Clarkia: pollen performance of dimorphic anthers contradicts expectations. [PDF]
Premise of the studyWild plant species that require the services of pollen-feeding insects for reliable pollination may evolve features that attract and reward their mutualistic partners.
Buchmann S. L. +4 more
core +1 more source
Microspore embryogenesis is a model system of plant cell reprogramming, totipotency acquisition, stress response and embryogenesis initiation. This in vitro system constitutes an important biotechnological tool for haploid and doubled-haploid plant ...
Berenguer Eduardo +3 more
doaj +1 more source
Somatic embryogenesis is a reliable system for in vitro plant regeneration, with biotechnological applications in trees, but the regulating mechanisms are largely unknown.
Yolanda Pérez-Pérez +9 more
doaj +1 more source

