Skip to main content
padlock icon - secure page this page is secure

Free Content Cleome, a genus closely related to Arabidopsis, contains species spanning a developmental progression from C3 to C4 photosynthesis

Download Article:
 Download
(PDF)
 
Summary

C4 photosynthesis involves alterations to leaf development, cell biology and biochemistry. Different lineages of C4 plants use varying mechanisms to generate the C4 pathway. Although the biochemistry of C4 photosynthesis was described around 20 years ago, the phylogenetic distance between Arabidopsis and the traditional C4 models has not facilitated the transfer of knowledge from Arabidopsis research to understanding C4 systems. We show that Cleome, a genus closely related to Arabidopsis, contains species spanning a developmental progression from C3 to C4 photosynthesis. The majority of species we assessed are C3 plants but have increased venation in leaves. Three C3 species have both increased venation and enlarged bundle sheath cells, and there is also a tendency to accumulate proteins and transcripts needed for C4 photosynthesis. Cleome gynandra shows all the characteristics needed for efficient C4 photosynthesis, including alterations to leaf biochemistry, cell biology and development, and belongs to the NAD-dependent malic enzyme subtype. Combined with its phylogenetic proximity to Arabidopsis, the developmental progression from C3 to C4 photosynthesis within the genus provides a potentially excellent new model to increase our understanding of C4 photosynthesis, and provide insights into its evolution.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: Arabidopsis; C4 photosynthesis; Cleome; evolution; leaf development

Document Type: Research Article

Affiliations: 1: Department of Plant Sciences, Downing Street, University of Cambridge, Cambridge, CB2 3EA, UK 2: Department of Botany, University of Toronto, 25 Willcocks Street, Toronto, Ontario M5S 3B2, Canada

Publication date: September 1, 2007

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more