Science Fair Project Encyclopedia
Apoplast
Apoplast and symplast are two related concept in plant biology.
Apoplast is the extracellular space consisting of cell walls and spaces between cells. Water and solutes can move freely in the apoplast, although in roots it is interrupted by the Casparian strip, forcing water to flow to symplast.
Symplast is the space within plants formed by the cytoplasms of individual cells connected by plasmodesmata . Water, solutes, and metabolites can move in the symplast, but cells usually take up compounds they need and export those available in excess.
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details