Are plants dependent on nitric oxide for successful reproduction? Margarida Prado (Instituto Gulbenkian de Ciência, Portugal) has discovered that pollen tubes depend on nitric oxide (NO) to guide them to the right place to fertilise the plant. In the presence of drugs such as Viagra the plant’s sensitivity to NO increases thereby influencing pollen tube bending. Prado will present her work on pollen tube redirection at the Society for Experimental Biology Annual Main Meeting in Barcelona on Thursday 14th July [session P3/C4.5].
Prado subjected Easter Lily (Lilium longiflorum) pollen tubes to an artificial source of NO and then, by removing the NO using a NO scavenger, saw that the re-orientation of the pollen tubes was blocked. “In animal physiology, NO is involved in intercellular communication events and in plants could be acting as a guidance cue for the pollen tube to an unfertilised ovule”, Prado explains, “It could work as a safe guard mechanism to block polyspermy, i.e. dual fertilization”.
Prado’s research was the first to demonstrate a role of NO in pollen tube biology, and further work is being performed to confirm a function of NO in plants similar to that in animals.
Diana van Gent | alfa
Researchers identify potentially druggable mutant p53 proteins that promote cancer growth
09.12.2016 | Cold Spring Harbor Laboratory
Plant-based substance boosts eyelash growth
09.12.2016 | Fraunhofer-Institut für Angewandte Polymerforschung IAP
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
09.12.2016 | Life Sciences
09.12.2016 | Ecology, The Environment and Conservation
09.12.2016 | Health and Medicine