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Subject:	Re: Do bees have mucus in their gut?
From:	randy oliver <[log in to unmask]>
Reply To:	Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:	Tue, 21 May 2013 17:19:02 -0700
Content-Type:	text/plain
Parts/Attachments:	text/plain (18 lines)

>the question is then, if the peritrophic membrane is or is not a mucus?

Juanse, as best I can tell, the PM in bees is composed of layers of
chitinous gut epithelial cells bound with protein.  These are continually
shed into the gut lumen, and allow for a countercurrent exchange of
digestive enzymes and nutrients.

As far as a mucus layer, there is one between the intestinal villi.
-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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