I need help please!!

[agakaron24]

I need help please!!

• Quote

Post by agakaron24 » Tue Oct 30, 2007 10:40 pm

Hello,

I had a laboratorium classe and I need to make a report in the following subject:

"The effect of potassium and abscisic acid on the mechanism of stomatal opening"

we were using:
KCL 0 10 50 100 200 500 (mM) and
ABA zero and 10-3 (M)

is there anybody with knowledge that can provide some explanation, information or even some documents about this topic?

I would really appreciate some help.

Thank you.

[teja]

• Quote

Post by teja » Sun Nov 04, 2007 12:24 pm

well,opening of stomata is due to difference in osmatic concentration.u know[i assume] guard cells r the only epidermal cells that contain chloroplast.during day time,the following events hapen which opens stomatal pore.

synthesis of ATP-driving out of H+ IONS out of guardcells-influx ofK+ IONS ALONG WITH CL- IONS-INCREASE in osmolarity of guard cells-inflow of water-opening of cells due to bulging

ABA plays an imp.role in controlling transpiration by influencing the flow of water.

UNDRESTAND?[/list]