Why is polyethylene glycol used to induce drought stress in plants? How does it induce stress in plant cells? _Which model is better for finding the empirical relationship between oil price shock and stock exchange performance: the Garch model or NARDL?
Why is polyethylene glycol used to induce drought stress in plants? How does it induce stress in plant cells?
i need answer for my research work
High Molecular weight PEG do Not penetarte plant cells. for any concentrationit will apply from the solution to the tissues a osmotic potential that deviates from colligative properties and depends on temperature, as in http://www.ncbi.nlm.nih.gov/pmc/articles/PMC366375/pdf/plntphys00228-0098.pdf. For basics see http://www.ncbi.nlm.nih.gov/pmc/articles/PMC366375/pdf/plntphys00228-0098.pdf
Naveen,
Look at short review by A. Blum http://www.plantstress.com/methods/peg.htm
Some researchers compared osmotic stress caused by PEG and NaCl, but could not show similar mechanisms.
Patade VY, Bhargava S, Suprasanna P. Transcript expression profiling of stress
responsive genes in response to short-term salt or PEG stress in sugarcane
leaves. Mol Biol Rep. 2012 Mar;39(3):3311-8.
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