Regulation of Inflorescence Architecture and Organ Shape by the ERECTA Gene in Arabidopsis

Keiko U. Torii (), Laurel A. Hanson, Caroline A. B. Josefsson and Elena D. Shpak
Additional contact information
Keiko U. Torii: University of Washington, Department of Biology
Laurel A. Hanson: University of Washington, Department of Biology
Caroline A. B. Josefsson: University of Washington, Department of Biology
Elena D. Shpak: University of Washington, Department of Biology

Chapter 13 in Morphogenesis and Pattern Formation in Biological Systems, 2003, pp 153-164 from Springer

Abstract: Summary The architecture of higher plants is largely determined by the size, shape, and arrangement of the shoot organs that are formed in a reiterative manner by the shoot apical meristem. Immense variations in plant architecture, due to altered shape, size, and position of the individual shoot unit, has significance in adaptation as well as domestication of crop plants. The Arabidopsis erecta mutant displays a dramatic alteration in inflorescence architecture and organ shape. Morphometric analysis of representative erecta alleles with different severities revealed that ERECTA regulates pedicel length and plant size in a quantitative manner but has complex effects on floral organ size: The organs of erecta mutants contain a lesser number of larger, and isotropically expanded cortex cells, suggesting that ERECTA is required for a coordinated cell proliferation or cell expansion within the same tissue layer (i.e. cortex). The molecular identity of ERECTA as a leucine-rich repeat receptor-like kinase (LRR-RLK) is consistent with its predicted role in cell-cell coordination.

Keywords: Floral Organ; Shoot Apical Meristem; Floral Meristem; Pedicel Length; Inflorescence Architecture (search for similar items in EconPapers)
Date: 2003
References: Add references at CitEc
Citations:

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-4-431-65958-7_13

Ordering information: This item can be ordered from
http://www.springer.com/9784431659587

DOI: 10.1007/978-4-431-65958-7_13

Access Statistics for this chapter

More chapters in Springer Books from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().