[Plant-education] Re: Plant-ed Digest, Vol 22, Issue 13

David Walker via plant-ed%40net.bio.net (by d.a.walker from sheffield.ac.uk)
Tue Feb 27 15:40:38 EST 2007

Hi Carl,

Long, long ago, when the world was young, had the great privilege of  
working for six months with Zuni Zelitch in far off Connecticut. In  
those days the stuff that you were asking about was called silicone  
rubber (Dow Corning or something similar). Would be described in one  
or other of the references below. Used the rubber to make a negative  
and nail varnish painted on to the surface of the solidified  (cured)  
rubber to make a transparency that could be transferred to a slide  
for microscope inspection and measurement. Worked very well for  
tobacco leaves..

WALKER DA, I ZELITCH 1963 Some effects of metabolic inhibitors,
temperature and anaerobic conditions on stomatal movement. Plant
Physiol 38: 390-396
  ZELITCH I, DA WALKER 1964 The role of glycolic acid
metabolism in the opening of leaf stomata. Plant Physiol 39: 856-862

Best regards

On 27 Feb 2007, at 17:01, plant-ed-request from oat.bio.indiana.edu wrote:

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> Date: Tue, 27 Feb 2007 10:15:45 -0500
> From: Carl Pike <carl.pike from fandm.edu>
> Subject: [Plant-education] stomata - dental impression material
> To: plant-ed from magpie.bio.indiana.edu
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> Has anyone used dental impression material for stomatal counting?  A
> material I used when overseas (Xantopren VL Plus) is not available in
> the US.  Do you know of a comparable material sold here?  Thanks.
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