Results 131 to 140 of about 1,088,744 (389)

Floral Origin Determines the In Vitro Antibacterial Activity of Bee Pollen Collected From Western Oromia, Ethiopia

open access: yesFuture Postharvest and Food, EarlyView.
ABSTRACT Bee pollen has been used as a medicine and food supplement. The biological activity and nutrient composition of bee pollen depend on its floral origin. Therefore, it was aimed to determine the phenolic and flavonoid content and antibacterial activities of methanolic (99.9%) extract of bee pollens among flora. Floral origin was identified using
Ofijan Tesfaye
wiley   +1 more source

KINETIC PECULIARITIES OF NICOTIANA ALATA POLLEN TUBES’ FORMATION AND GROWTH IN VITRO AFTER GAMMA-IRRADIATION IN DIFFERENT DOSES

open access: yesВісник проблем біології і медицини, 2018
Usage of different xenobiotics, in particular ionizing radiation, for the modification of growth properties of pollen tubes is widely spread due to the possibility to apply gamma-irradiated pollen for mutagenesis and apomixis induction as well as ...
Grubska L. V.   +3 more
doaj   +1 more source

Quantitative proteomics of the tobacco pollen tube secretome identifies novel pollen tube guidance proteins important for fertilization

open access: yesGenome Biology, 2016
BackgroundAs in animals, cell–cell communication plays a pivotal role in male–female recognition during plant sexual reproduction. Prelaid peptides secreted from the female reproductive tissues guide pollen tubes towards ovules for fertilization. However,
S. Hafidh   +5 more
semanticscholar   +1 more source

PolSpec: Polarisation‐Based Detection for Versatile, Cost‐Effective Rapid Hyperspectral Imaging

open access: yesJournal of Biophotonics, EarlyView.
“PolSpec” is a fast, flexible, data efficient and cost‐effective technique for hyperspectral imaging utilising polarisation‐based spectral modulation. Using data‐efficient representation of spectral information on vector plots, it facilitates rapid visualisation and segmentation of spectral contrast to classify sample features. As a proof of concept, a
Huihui Liu   +5 more
wiley   +1 more source

Combined cytological and transcriptomic analysis reveals a nitric oxide signaling pathway involved in cold-inhibited Camellia sinensis pollen tube growth

open access: yesFrontiers in Plant Science, 2016
Nitric oxide (NO) as a signaling molecule plays crucial roles in many abiotic stresses in plant development processes, including pollen tube growth. Here, the signaling networks dominated by NO during cold stress that inhibited Camellia sinensis pollen ...
Weidong eWang   +8 more
doaj   +1 more source

Callose (β-1,3 glucan) is essential for Arabidopsis pollen wall patterning, but not tube growth [PDF]

open access: yes, 2005
Background: Callose (β-1,3 glucan) separates developing pollen grains, preventing their underlying walls (exine) from fusing. The pollen tubes that transport sperm to female gametes also contain callose, both in their walls as well as in the plugs that ...
Swanson, Rob
core   +2 more sources

Molecular cloning and transcriptional activity of a new Petunia calreticulin gene involved in pistil transmitting tract maturation, progamic phase, and double fertilization [PDF]

open access: yes, 2013
Calreticulin (CRT) is a highly conserved and ubiquitously expressed Ca2+-binding protein in multicellular eukaryotes. As an endoplasmic reticulum-resident protein, CRT plays a key role in many cellular processes including Ca2+ storage and release ...
A Christensen   +59 more
core   +2 more sources

Luminescence dating of palaeoshoreline deposits from Khyargas Nuur, Western Mongolia: A comparative study of multigrain and single‐grain K‐feldspar dating

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT The evolution of lakes in western Mongolia and their responses to climate changes and glacial meltwater input remain poorly understood. This study evaluates the reliability of multigrain and single‐grain K‐feldspar post‐infrared infrared stimulated luminescence (IRSL) (pIRIR) dating applied to palaeoshoreline sediments at Khyargas Nuur ...
Neda Rahimzadeh   +4 more
wiley   +1 more source

Confocal microscopy imaging analysis of plant morphodynamics [PDF]

open access: yes
Title from PDF of title page (University of Missouri--Columbia, viewed on June 7, 2010).The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the ...
Fortman, John T., 1973-
core   +1 more source

Flowering and pollination studies with European plum (Prunus domestica L.) cultivars [PDF]

open access: yes, 2010
One of the most important factors affecting the financial outcome of commercial fruit growing is the success of pollination and fertilization, which in turn are dependent on weather conditions, activity of pollinators and the compatibility and overlap in
Dieren, M.C.A., van   +2 more
core   +2 more sources

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