Root Or Shoot: Power Struggle Between Genetic Master Switches Decides Stem Cell Fate, Growth Orientation in Plants
Sunday, February 28, 2010 - 14:42
in Biology & Nature
The first order of business for any fledgling plant embryo is to determine which end grows the shoot and which end puts down roots. Now, researchers at the Salk Institute expose the turf wars between two groups of antagonistic genetic master switches that set up a plant's polar axis with a root on one end and a shoot on the other.