I'd redo pigment experiments. As alcohol should dissolve everything ,
but leave only lycopene.

Start with hot wash with water. Followed by hot wash with alcohol. If
no results redo with crushed petals and filter through coffee filter.
Take photos.

If you have access to microscope, do epidermal peel.

Chuck Chapman

-----Original Message-----
From: Donald Eaves <donald@txol.net>
To: Iris-photos <Iris-photos@yahoogroups.com>
Sent: Tue, Nov 19, 2013 10:21 pm
Subject: [iris-photos] re: HYB: seedling pigment? (54172)

Â
I hope you find an answer. I wouldn't have thought you'd have the
color
shown without some anthocyanin. That is the pigment that's soluble
with
alcohol, isn't it? Maybe that bloom is just more yellow than it
appears
to be in your photo, but when things get toast colored and start
veering
into brown tones I've always thought that was due anthocyanin being
present. Maybe Chuck will see the post.

Yahoo, or someone has changed things again. I couldn't reply directly
to the message even after I logged into the group area. Maybe this
won't
work either.

Donald Eaves
donald@txol.net
Texas in the permanent drought portion of Zone 7