[Aroid-l] root tip glues

From: lbmkjm at yahoo.com (brian lee) on 2008.06.17 at 18:44:55(17865) Dear Peter, Aloha. Fascinating. I always thought that the hygroscopic cycad gel would be useful to make some economic product due to the extreme degree of volume expansion from dry to wet. The concept would be useful for some bio-product development. Thanks again for your observations of monsoonal versus ever-wet tropics gel cap activity...always interesting reading. Aloha, Leland +More --- On Sun, 6/15/08, Peter Boyce wrote: > From: Peter Boyce > Subject: Re: [Aroid-l] root tip glues > To: "Discussion of aroids" > Date: Sunday, June 15, 2008, 9:17 PM > Dear Leland, > > The gel cap 'moves' with the active tip and remains > gellified for as long as > the root tip is active. Here in the everwet tropics the gel > remains wet > throughout the activity of the root but I have seen in he > monsoonal tropics > that the get cap of species such as Rhaphidophora > megaphylla and Scindapsus > officinalis dries into a close-fitting sheath that does > indeed appear to be > hygroscopic in that once the wet returns the get cap > rehydrates. > > Peter > ----- Original Message ----- > From: "brian lee" > To: "Discussion of aroids" > > Sent: Saturday, June 14, 2008 4:41 AM > Subject: Re: [Aroid-l] root tip glues > > > > Dear Peter, > > > > Aloha. > > > > Excellent photo. Is this root glue cap persistent for > long? It reminds me > > of Cycad mucilage...when dry this is a thin film...it > has hydroscopic > > properties and when wet, the film expands into a mass > of gel...like some > > of those water absorbing polymers. > > > > Aloha, > > > > Leland > > > > > > --- On Fri, 6/13/08, Peter Boyce > wrote: > > > >> From: Peter Boyce > >> Subject: [Aroid-l] root tip glues > >> To: "Discussion of aroids" > > >> Date: Friday, June 13, 2008, 12:34 AM > >> Dear All, > >> > >> Today I took a look through the research > collection and > >> managed to find a nice flagellifrom shoot of > Rhaphidophora > >> megasperma with nicely photogenic root cap gel. > >> > >> Enjoy! > >> > >> > Peter_______________________________________________ > >> Aroid-L mailing list > >> Aroid-L at www.gizmoworks.com > >> http://www.gizmoworks.com/mailman/listinfo/aroid-l > > > > > > > > _______________________________________________ > > Aroid-L mailing list > > Aroid-L at www.gizmoworks.com > > http://www.gizmoworks.com/mailman/listinfo/aroid-l > > > > > > _______________________________________________ > Aroid-L mailing list > Aroid-L at www.gizmoworks.com > http://www.gizmoworks.com/mailman/listinfo/aroid-l

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