RE: cellulose and starch
<< Previous Message | Next Message >>
From: | "Kellar, Eric" <kellarec@msx.upmc.edu> (by way of histonet) |
To: | histonet@histosearch.com |
Reply-To: | |
Content-Type: | text/plain; charset="us-ascii" |
Cellulose is PAS positive and will also stain with the direct azo dye Congo
red (which is also known as a cellulose-substantive dye) demonstrating a
green birefringence.
Starch is also PAS positive, but is diastase labile (except for the
chemically altered starch used as a surgical glove powder). Starch will also
demonstrate a Maltese cross birefringence with polarization and cellulose
will not.
Eric C. Kellar
University of Pittsburgh Medical Center
----------
From: Kathy Walters [SMTP:kwalters@emiris.iaf.uiowa.edu]
Sent: Friday, January 14, 2000 10:25 AM
To: HISTONET POST
Subject: cellulose and starch
Dear esteemed colleagues,
Here's what I think is a sticky one. Anyone know how to stain and
differentiate cellulose and starch?
TIA,
Kathy
Kathy Walters / /
Research Assistant III / /\
Center for Microscopy Research / /\
\
University of Iowa /_/ \
\
85 EMRB ____
((O))
Iowa City, Iowa 52242 | | /
/
|| /
/
email: kwalters@emiris.iaf.uiowa.edu
-----------
fax: (319)335-8049
-------------
www: http://www.uiowa.edu/~cemrf
<< Previous Message | Next Message >>