Re: [Aroid-l] Philodendron Shift in Leaf Morphology

From: "Tom Croat" <Thomas.Croat at mobot.org> on 2009.10.07 at 03:05:01(20163) Dear Phil: I suspect that it is auxin controlled. As you may imagine younger plants grow scototropically one assumes because they have to find a tree, rock or wall. Once there they stop growing horizontally and grow upward, effectively toward the light, rather than away from the light. Therefore is is logical that there is an auxin conrol the makes this change of coarse. As the plants get closer to the source of light the internodes get shorter and broader reflecting this more favorable site for developing into an adult plant. Tom +More -----Original Message----- From: aroid-l-bounces@gizmoworks.com [mailto:aroid-l-bounces@gizmoworks.com] On Behalf Of pbunch@cox.net Sent: Thursday, October 01, 2009 7:05 PM To: aroid-l@gizmoworks.com; aroid-l@gizmoworks.com Subject: [Aroid-l] Philodendron Shift in Leaf Morphology So how do Philodendrons change from "juvenile' to 'mature" foliage morphologies? What are the mechanisms involved? Phil Medellin _______________________________________________ Aroid-L mailing list Aroid-L@www.gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l _______________________________________________ Aroid-L mailing list Aroid-L@www.gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

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