Results 31 to 40 of about 457,452 (356)

Sensitivity of the grassland-forest ecotone in East African open woodland savannah to historical rainfall variation [PDF]

, 2014
. Fossil pollen records provide key insight into the sensitivity of terrestrial ecosystems to climate change at longer time scales. However, tracing vegetation response to relatively modest historical climate fluctuations is often complicated by the ...
Gelorini, Vanessa, Ssemmanda, Immaculate, Verschuren, Dirk   +2 more
core   +1 more source

The grass pollen season 2015: a proof of concept multi-approach study in three different European cities

World Allergy Organization Journal, 2017
Background Grasses release the most widespread aeroallergens with considerable sensitization rates, while different species produce several pollen concentration peaks throughout the season.
Maximilian Kmenta, Katharina Bastl, Uwe Berger, Matthias F. Kramer, Matthew D. Heath, Sanna Pätsi, Anna-Mari Pessi, Annika Saarto, Barbora Werchan, Matthias Werchan, Reinhard Zetter, Karl-Christian Bergmann   +11 more
doaj   +1 more source

Replicability of data collected for empirical estimation of relative pollen productivity [PDF]

, 2016
The effects of repeated survey and fieldwork timing on data derived from a recently proposed standard field methodology for empirical estimation of relative pollen productivity (RPP) have been tested.
Bunting, M. Jane, Farrell, Michelle, Middleton, Richard   +2 more
core   +2 more sources

The evaluation of pollen concentrations with statistical and computational methods on rooftop and on ground level in Vienna – How to include daily crowd-sourced symptom data

World Allergy Organization Journal, 2019
Background: It is recommended to position pollen monitoring stations on rooftop level to assure a large catchment area and to gain data that are representative for a regional scale.
Maximilian Bastl, Katharina Bastl, Kostas Karatzas, Marija Aleksic, Reinhard Zetter, Uwe Berger   +5 more
doaj   +1 more source

Pollenkitt is associated with the collectability of Malvoideae pollen for corbiculate bees

Journal of Pollination Ecology, 2023
Pollen grains of Malvoideae (Malvaceae) which corbiculate bees cannot collect constitute a floral filter that excludes pollen-collecting bumble bees and honey bees from exploiting pollen resources.
Sabine Konzmann, Mona Neunkirchen, Dagmar Voigt, Christoph Neinhuis, Klaus Lunau   +4 more
doaj   +1 more source

Effects of Alternaria alternata f.sp. lycopersici toxins on pollen [PDF]

, 1988
Effects of the phytotoxic compounds (AAL-toxins) isolated from cell-free culture filtrates of Alternaria alternata f.sp. lycopersici on in vitro pollen development were studied. AAL-toxins inhibited both germination and tube growth of pollen from several
Bino, R.J.,, Dons, J.J.M.,, Franken, J.,, Hille, J.,, Witsenboer, H.M.A.,   +4 more
core   +2 more sources

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, Elena Carneros, Pilar S. Testillano, José Manuel Pérez-Pérez   +3 more
doaj   +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, P. V. Ørby, C. A. Skjøth, R. Kennedy, V. Schlünssen, M. Smith, J. Sommer, O. Hertel   +7 more
doaj   +1 more source

Introduction of the Ribo-BiFC method to plants using a split mVenus approach

Plant Methods
Background Translation is a fundamental process for every living organism. In plants, the rate of translation is tightly modulated during development and in responses to environmental cues.
Karel Raabe, Alena Náprstková, Janto Pieters, Elnura Torutaeva, Veronika Jirásková, Zahra Kahrizi, Palash Chandra Mondol, Christos Michailidis, David Honys   +8 more
doaj   +1 more source

MADS-complexes regulate transcriptome dynamics during pollen maturation [PDF]

, 2007
Background: Differentiation processes are responsible for the diversity and functional specialization of the cell types that compose an organism. The outcome of these processes can be studied at molecular, physiologic, and biochemical levels by comparing
Verelst, Wim, Twell, David, de Folter, Stefan, Immink, Richard, Saedler, Heinz, Münster, Thomas   +5 more
core   +2 more sources