News tagged with dwarfism

Plant organ development breakthrough

Plants grow upward from a tip of undifferentiated tissue called the shoot apical meristem. As the tip extends, stem cells at the center of the meristem divide and increase in numbers. But the cells on the periphery differentiate ...

Dec 03, 2012 not rated yet 0 | with audio podcast

Tiny chameleons discovered in Madagascar

Four new species of miniaturized lizards have been identified in Madagascar. These lizards, just tens of millimeters from head to tail and in some cases small enough to stand on the head of a match, rank among the smallest ...

Feb 15, 2012 5 / 5 (1) 0

Steroids control gas exchange in plants

Plants leaves are sealed with a gas-tight wax layer to prevent water loss. Plants breathe through microscopic pores called stomata (Greek for mouths) on the surfaces of leaves. Over 40% of the carbon dioxide, CO2, in the ...

Feb 05, 2012 3.7 / 5 (3) 0 | with audio podcast