Results 31 to 40 of about 199,462 (316)

Modern Pollen Rain in the Tibetan Plateau

Frontiers in Earth Science, 2021
The basis for the interpretation of fossil-pollen assemblages in terms of vegetation and climate is the present-day relationship of vegetation and climate to pollen rain.
Caiming Shen, Caiming Shen, Caiming Shen, Kam-biu Liu, Lingyu Tang, Jonathan T. Overpeck   +5 more
doaj   +1 more source

Perspectives on deciphering mechanisms underlying plant heat stress response and thermotolerance

, 2013
Global warming is a major threat for agriculture and food safety and in many cases the negative effects are already apparent. The current challenge of basic and applied plant science is to decipher the molecular mechanisms of heat stress response (HSR ...
Fragkostefanakis, Sotirios, Bokszczanin, Kamila L.   +1 more
core   +1 more source

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

Chloride fluxes in lily pollen tubes: a critical reevaluation

, 2004
Microelectrodes, made from a Cl?-selective liquid ion exchanger previously used to measure putative Cl- fluxes in Lilium longiflorum pollen tubes, were characterized. The electrodes were poorly selective, possessing only about 10-fold selectivity for Cl?
Mark A. Messerli, Robert C. Lewis, Kenneth R. Robinson, Robinson, Kenneth R., Lewis, Robert C., Messerli, Mark A., Smith, Peter J.S., Peter J. S. Smith   +7 more
core   +1 more source

The late Middle Miocene (late Sarmatian) flora of Graz-Andritz (Austria): Environmental, climatic, and biogeographic patterns [PDF]

Fossil Record
The Middle Miocene (late Sarmatian Central Paratethys stage) plant assemblage of Graz-Andritz comprises isolated leaves and a few fruit remains. The fossil-species represent mainly the swamp and riparian vegetation (cf.
Thomas Denk, Johannes M. Bouchal, Lukas Dirr, Simon Nickel, Martin Gross   +4 more
doaj   +3 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

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

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

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

A Super‐Adhesive Air Filter With Capillarity‐Mediated Spontaneous Particle Absorption via Dynamic Bond Exchange

Advanced Materials, EarlyView.
We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park, Hyeri Jeon, Hyunwoong Park, Ji Min Lee, Yeomyung Yoon, Gyeong Hwan Choi, Sazzadul A. Rahat, Dong Wook Lee, Sohdam Jeong, Jonathan T. Pham, Chae Bin Kim, Sanghyuk Wooh   +11 more
wiley   +1 more source