Results 61 to 70 of about 248,109 (208)

Circumscription and phylogeny of the Laurales [PDF]

, 1999
The order Laurales comprises a few indisputed core constituents, namely Gomortegaceae, Hernandiaceae, Lauraceae, and Monimiaceae sensu lato, and an equal number of families that have recently been included in, or excluded from, the order, namely ...
Renner, Susanne S.
core   +1 more source

Bees Diversity on Flowers of Eremanthus spp. (Asteraceae)

Floresta e Ambiente
Bees are considered important pollinators due to their fidelity to plants, enabling the maintenance of gene flow between plant species. The objective of this study was to recognize the visit of bees in two Candeia species, Eremanthus erythropappus and ...
Ana Paula de Souza Medeiros Santos, Sebastião Lourenço Assis Júnior, Anete Pedro Lourenço, Evandro Luiz Mendonça Machado   +3 more
doaj   +1 more source

Pyrrolizidine Alkaloids: The Botanical Origin of Pollen Collected during the Flowering Period of Echium vulgare and the Stability of Pyrrolizidine Alkaloids in Bee Bread

Molecules, 2019
Previous studies have shown that pollen products sold as nutritional supplements and used in apitherapy may contain toxic pyrrolizidine alkaloids (PAs) if bees collect pollen from PA-containing plants, such as Echium vulgare. In this study, the botanical
Christina Kast, Verena Kilchenmann, Hans Reinhard, Katharina Bieri, Otmar Zoller   +4 more
doaj   +1 more source

Bee Bread Cells in Honey Super Distort The Results of Pollen Analysis of Honey

Journal of Apicultural Science, 2018
The pollen analysis is currently the only reliable test to determine honey variety, but the results are sometimes burdened with error. The main reason for this is additional pollen that got into honey in a way other than with nectar collected by bees but
Teper Dariusz, Semkiw Piotr, Skubida Piotr, Borański Mikołaj   +3 more
doaj   +1 more source

A combinatorial approach to angiosperm pollen morphology [PDF]

, 2016
Angiosperms (flowering plants) are strikingly diverse. This is clearly expressed in the morphology of their pollen grains, which are characterized by enormous variety in their shape and patterning.
Blackmore S, Gould SJ, Harley MM, Lewontin RC, Lupia R, McGhee GR, Roubik DW, Thompson DW   +7 more
core   +1 more source

Recent pollen assemblages from Protected Areas of European Russia as a key to interpreting the results of paleoecological studies

Nature Conservation Research: Заповедная наука, 2017
The paper presents the results of studies of 59 recent pollen assemblages from protected areas located in the forest and steppe zones of the East European plain.
Elena Yu. Novenko, Natalya G. Mazei, Valentina P. Zernitskaya   +2 more
doaj   +1 more source

Ascertaining the nature and timing of mire degradation : using palaeoecology to assist future conservation management in Northern England [PDF]

, 2017
This study was initiated under contract VT0419 from English Nature (Natural England) to CECQR. In 2015, additional funding was provided by the Yorkshire Peat Partnership, for 210Pb dating, to refine age–depth estimates.
Alistair Crowle, Dmitri Mauquoy, Frank Chambers, John Daniell, Julia McCarroll, Julia Webb, Nicole Sanderson, null null, Phil Toms, Tim Thom   +9 more
core   +3 more sources

Preliminary data on Brazilian monofloral honey from the northeast region using FT-IR ATR spectroscopic, palynological, and color analysis

Química Nova, 2014
Fourier transform infrared attenuated total reflectance (FT-IR ATR) spectroscopy was used to determine 14 different measurands in northeast Brazilian honey samples.
Ligia Bicudo de Almeida-Muradian, Renato J. Sousa, Ortrud Monika Barth, Peter Gallmann   +3 more
doaj   +1 more source

Sublingual allergen immunotherapy with a liquid birch pollen product in patients with seasonal allergic rhinoconjunctivitis with or without asthma [PDF]

, 2019
Background: Sublingual allergen immunotherapy (SLIT) has been demonstrated to be both clinically efficacious and safe. However, in line with the current regulatory guidance from the European Medicines Agency, allergen immunotherapy (AIT) products must ...
Bachert, Claus, Boot, Johan D, de Kam, Pieter-Jan, Džupinová, Mária, Klimek, Ludger, Kuna, Piotr, Opstelten, Dirk Jan E, Panzner, Petr, Pfaar, Oliver, van Nimwegen, Maroesja J, Yu, Donghui   +10 more
core   +2 more sources

Constructing more comprehensive pollination networks: integrating diurnal and nocturnal pollen data with visitation in a subalpine wetland community

Frontiers in Plant Science
IntroductionSampling for describing plant–pollinator interaction networks has been performed using techniques that either focus on the plants (with flower-visit data) or the animals (with analyzing pollen on the body surface of flower visitors).
Yue Teng, Jana C. Vamosi, Xiao-Fan Wang, Yan-Bing Gong   +3 more
doaj   +1 more source