Plant biologists have discovered the last major element of the series of chemical signals that one class of plant hormones, called brassinosteroids, send from a protein on the surface of a plant cell to the cell's nucleus. ...
Cell & Microbiology
Jan 23, 2011
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(PhysOrg.com) -- Living things possess many diverse ways of communicating, but perhaps the oldest and most widespread form of communication involves the use of chemicals. From animals and plants to bacteria and fungi, organisms ...
Using fruit flies as a model to study embryo formation, scientists report in Nature Cell Biology that molecular breakdown of a protein called Bicoid is vital to normal head-to-tail patterning of the insect's offspring.
Cell & Microbiology
Dec 21, 2010
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A team of UCSF researchers has engineered E. coli with the key molecular circuitry that will enable genetic engineers to program cells to communicate and perform computations.
Biochemistry
Dec 8, 2010
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By reconstructing an ancient protein and tracing how it subtly changed over vast periods of time to produce scores of modern-day descendants, scientists have shown how evolution tinkers with early forms and leaves the impression ...
Evolution
Oct 5, 2010
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When mice smell the scent of food on the breath of their fellow mice, they use that experience to decide what's safe to eat in the future. Key in that learning process is the pairing of a particular odor with a chemical ingredient ...
Plants & Animals
Jul 15, 2010
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(PhysOrg.com) -- In the development of future molecular devices, new display technologies, and "artificial muscles" in nanoelectromechanical devices, functional molecules are likely to play a primary role.
Nanophysics
Jul 6, 2010
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(PhysOrg.com) -- Nearly all mammalian cells have what's called a primary cilium -- a single, stump-like rod projecting from the smooth contours of the cell's outer membrane. Unlike its more flamboyant cousins, the motile ...
Cell & Microbiology
Jun 24, 2010
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Mobile biological cells may be twice as good at following chemical signals as previously believed possible, according to Princeton researchers publishing in the latest issue of Physical Review Letters. The revelation offers ...
General Physics
Jun 14, 2010
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The pheromone that attracts female mice to the odour of a particular male has been identified. Named 'darcin' by researchers writing in the open access journal BMC Biology (after Darcy, the attractive hero in Jane Austen's ...
Plants & Animals
Jun 2, 2010
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