Re: Re: Anthocyanin-sidetracked

Black iris have a special dark pigment comming from Iris aphylla. It would appear that this involves Anthrocyanin vascular intrusions (AVI) These involve clusters of anthocyanin in globules with a protein base. They form clumps inside the cell vacuole and help make the anthocyanin much darker. A deep purple when no yellow in flower, black when it also occurs with yellow. For more information on this look at my articles in BAIS on this topic.
The "I" factor will not remove all the anthocyanin in these situations (dark purple or black), but several dosages of "I" will remove it.
The AVI can ocur in cell vacuole without the water soluble anthocyanin in the vacuole. this can cause a dusky colouration as in standards of Ziggy, where I have found AVI but no purple cell sap. This could possibly be connected with "green" iris. 

Chuck Chapman

Date: Wed, 30 Jul 2008 16:07:19 -0700 (PDT)
From: christian foster <flatnflashy@yahoo.com>
Subject: Re: [iris] Re: Anthocyanin-sidetracked

Hey gang,
Okay, I wasn't much interested in the whole discussion of glaciatas, but the comment about glaciata being a recessive of a recessive caught my interest. 
Can someone Punnett Square that for me?

I was trying to muddle all the plicata info in this post away from the
anthocyanin info and decided to refer back to some archive posts I had printed out on the subject. The only thing I'm sure of after that is that "blue" and "white" can be lumped together genetically...at least as far as I'm interested 
in blue and white per se.
BUT... I stumbled on a notation that caught my attention... as it may relate more directly to personal goals. In a post relating to anthocyanin dated Feb 08, 2003 Neil Morgensen stated that "The pigments involved in the blacks tend to penetrate through the I factor." This caught my attention because I have noted that "green" irises sometimes come from "black" pedigrees, and have 
wondered how that was possible.
If I understand the context correctly he's seperating two types of "white" 
irises... recessive white and...well I'm unclear.
Somebody help me clear up the fog? And if anyone has pictures of irises with this "penetration" of dark pigments through the I factor, I would find them 
very interesting.

Christian






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