Effect of mutations in the PINHEAD gene of Arabidopsis on the formation of shoot apical meristems
Article first published online: 6 FEB 2005
Copyright © 1995 Wiley-Liss, Inc.
Volume 16, Issue 4, pages 358–366, 1995
How to Cite
McConnell, J. R. and Barton, M. K. (1995), Effect of mutations in the PINHEAD gene of Arabidopsis on the formation of shoot apical meristems. Dev. Genet., 16: 358–366. doi: 10.1002/dvg.1020160409
- Issue published online: 6 FEB 2005
- Article first published online: 6 FEB 2005
- Manuscript Accepted: 16 MAY 1995
- Manuscript Received: 13 APR 1995
- shoot apical meristems
The primary shoot apical meristem of angiosperm plants is formed during embryogenesis. Lateral shoot apical meristems arise postembryonically in the axils of leaves. Recessive mutations at the PINHEAD locus of Arabidopsis interfere with the ability of both the primary shoot apical meristem as well as lateral shoot apical meristems to form. However, adventitious shoot apical meristems can form in pinhead mutant seedlings from the axils of the cotyledons and also from cultred root explants. In this report, the phenotype of pinhead mutants is described, and a hypothesis for the role of the wild-type PINHEAD gene product in shoot meristem initiation is presented. © 1995 Wiley-Liss, Inc.