Literature DB >> 16667298

Effect of polyethylene glycol exclusion on the water potential of solution-saturated filter paper.

S P Hardegree1, W E Emmerich.   

Abstract

Solutions of high molecular weight polyethylene glycol are often used to control water potential in seed germination studies. There is an implicit assumption that the seed support materials do not alter the water potential of the osmotic solution. Filter paper, however, contains a hydrophylic volume fraction that is inaccessible to high molecular weight polymers. Water absorbed by filter paper fibers was found to concentrate polyethylene glycol and lower water potential in solution-filter paper mixtures. The magnitude of this concentration effect is a function of the original concentration of polyethylene glycol and the ratio of solution volume to filter paper weight.

Entities:  

Year:  1990        PMID： 16667298      PMCID： PMC1062314          DOI： 10.1104/pp.92.2.462

Source DB:  PubMed          Journal:  Plant Physiol        ISSN： 0032-0889            Impact factor:   8.340


  4 in total

1.  Determination of the pore size of cell walls of living plant cells.

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Journal:  Science       Date:  1979-09-14       Impact factor: 47.728

2.  Evaluation of the water potentials of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes.

Authors:  B E Michel
Journal:  Plant Physiol       Date:  1983-05       Impact factor: 8.340

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4.  The osmotic potential of polyethylene glycol 6000.

Authors:  B E Michel; M R Kaufmann
Journal:  Plant Physiol       Date:  1973-05       Impact factor: 8.340
  4 in total
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  8 in total

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