A signaling pathway required for plants to grow to their normal size appears to have an unexpected dual purpose of keeping the plant from wallpapering itself with too many densely clustered stomata.
Keiko Torii holds a mutated version – one thats an inch tall and covered densely with microscopic stomata – and a normal plant of Arabidopsis, a small flowering plant that is widely used as a model organism in plant biology.
Photo credit: University of Washington
"Its surprising that size and stomata patterning – both key to plants being able to survive on dry land – are using the same signaling components," says Jessica McAbee, a University of Washington research associate in biology. Shes one co-author of a report in the July 8 issue of Science about work with Arabidopsis, a weed-like member of the crucifer family for which scientists already have a genomic map.
Stomata are microscopic pores on the surface of plants that open to allow plants to take in carbon dioxide from the air for photosynthesis. They close when there is the danger that the plant tissue may lose too much moisture.
Sandra Hines | EurekAlert!
How molecules teeter in a laser field
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The scientific and political community alike stress the importance of German Antarctic research
Joint Press Release from the BMBF and AWI
The Antarctic is a frigid continent south of the Antarctic Circle, where researchers are the only inhabitants. Despite the hostile conditions, here the Alfred...
World first experiments on sensor that may revolutionise everything from medical devices to unmanned vehicles
The new sensor - capable of detecting vibrations of living cells - may revolutionise everything from medical devices to unmanned vehicles.
Dead and alive at the same time? Researchers at the Max Planck Institute of Quantum Optics have implemented Erwin Schrödinger’s paradoxical gedanken experiment employing an entangled atom-light state.
In 1935 Erwin Schrödinger formulated a thought experiment designed to capture the paradoxical nature of quantum physics. The crucial element of this gedanken...
Cellulose obtained from wood has amazing material properties. Empa researchers are now equipping the biodegradable material with additional functionalities to produce implants for cartilage diseases using 3D printing.
It all starts with an ear. Empa researcher Michael Hausmann removes the object shaped like a human ear from the 3D printer and explains:
The phenomenon of so-called superlubricity is known, but so far the explanation at the atomic level has been missing: for example, how does extremely low friction occur in bearings? Researchers from the Fraunhofer Institutes IWM and IWS jointly deciphered a universal mechanism of superlubricity for certain diamond-like carbon layers in combination with organic lubricants. Based on this knowledge, it is now possible to formulate design rules for supra lubricating layer-lubricant combinations. The results are presented in an article in Nature Communications, volume 10.
One of the most important prerequisites for sustainable and environmentally friendly mobility is minimizing friction. Research and industry have been dedicated...
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