transition leaf -- definition

[planteome-user]

It would be helpful to add some insights on the transition leaf. For example - Leaves that have mosaics of juvenile and adult tissues. In maize, the juvenile will be at the tip, which differentiates first, with adult at the base. Other grasses may have other arrangements, eg Brachypodium, which may have both juvenile and adult across the breadth of a leaf. Provided by Erin Irish, who references t his paper: Irish, E. E. and Karlen, S. (1998) Restoration of juvenility in maize shoots by meristem culture. International Journal of Plant Science 159, 695-701. The Brachy. information is more recent.

Reported by: mlschaeffer

Original Ticket: obo/plant-ontology-po-term-requests/371

[planteome-user]

At the POC meeting on 8-2-11, we agreed to add the following to the comment for juvenile, transition and adult leaf:
Many species have juvenile leaves at the base of the stem, adult leaves at the apex, and transition leaves in between. In maize, juvenile leaves are at the tip of the stalk (stem), which differentiates first, with adult leaves at the base, while other grasses may have other arrangements.

Add the following comment to transition leaf:
Transition leaves may have mosaics of juvenile and adult tissues, as in Brachypodium.

Original comment by: rlwalls2008

[planteome-user]

• priority: 5 --> 1
• status: open --> closed-accepted

Original comment by: rlwalls2008