Control of Plant Architecture: The Role of Phyllotaxy and Plastochron

Lee, B. h, Yu, S. i, Jackson, D. P. (August 2009) Control of Plant Architecture: The Role of Phyllotaxy and Plastochron. Journal of Plant Biology, 52 (4). pp. 277-282.

DOI: 10.1007/s12374-009-9034-x


Plants display a wide variety of three dimensional forms, or architectures, that are critical for their survival in competitive environments or, in the case of crops, for their productivity. Architecture is generated after embryogenesis through the activities of shoot apical meristems and root apical meristems. Leaves are the principal lateral organ that determines the plant shoot morphology, and they normally develop in very regular patterns in time and space. The spatial pattern of leaf arrangement is called phyllotaxy, and the temporal pattern is determined by the plastochron, which is the time between successive leaf initiation events. Both programs involve many gene activities as well as the hormones auxin and cytokinin. Apparently, the mechanisms controlling phyllotaxy and plastochron share some regulatory components. In this review, the molecular mechanisms for both patterning programs will be discussed. © 2009 The Botanical Society of Korea.

Item Type: Paper
Subjects: organism description > plant behavior > phyllotaxy
CSHL Authors:
Communities: CSHL labs > Jackson lab
Depositing User: CSHL Librarian
Date: August 2009
Date Deposited: 03 Apr 2012 18:23
Last Modified: 08 Apr 2015 13:49

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