News tagged with plant cell biology

Nailing down a crucial plant signaling system

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. ...

Jan 23, 2011
5 / 5 (1) 0 | with audio podcast

Mastermind steroid found in plants

Scientists have known for some time how important plant steroids called brassinosteroids are for regulating plant growth and development. But until now, they did not know how extensive their reach is. Now researchers, including ...

Nov 15, 2010
1 / 5 (1) 0 | with audio podcast

Plants spice up their sex life with defensins

Since the beginning, plants and animals have deployed various mechanisms to fight pathogens. Proteins have always played an important part in this armoury, and a broad variety of defensin proteins have become part of the ...

Jun 01, 2010
5 / 5 (2) 0

How plants put down roots

In the beginning is the fertilized egg cell. Following numerous cell divisions, it then develops into a complex organism with different organs and tissues. The largely unexplained process whereby the cells ...

Mar 15, 2010
5 / 5 (2) 0

Green plant transport mystery solved

Contrary to prevailing wisdom, a new study from plant biologists at UC Davis shows that proteins of the Hsp70 family do indeed chaperone proteins across the membranes of chloroplasts, just as they do for other cellular structures.

Jan 26, 2010
4 / 5 (1) 0 | with audio podcast

Carnegie donates landmark clones to biology

With the information explosion, it's remarkable that so little is known about the interactions that proteins have with each other and the protective membrane that surrounds a cell. These interactive, so-called membrane proteins ...

Aug 06, 2009
5 / 5 (1) 0

Hormone clue to root growth

(PhysOrg.com) -- Plant roots provide the crops we eat with water, nutrients and anchorage. Understanding how roots grow and how hormones control that growth is crucial to improving crop yields, which will be necessary to ...

Jul 06, 2009
4 / 5 (1) 0

At Long Last, How Plants Make Eggs

(PhysOrg.com) -- A long-standing mystery surrounding a fundamental process in plant biology has been solved by a team of scientists at the University of California, Davis.

Jun 04, 2009
4.9 / 5 (9) 3