The Cycad Pages
C
ORALLOID ROOTS AND NITROGEN FIXATION
Juliana Medeiros and Dennis Stevenson
Contents
Introduction
Symbiosis
What is symbiosis?
Nature of the Cycad/Cyanobacteria Symbiosis
Costs and Benefits of the Symbiosis
Cycad Roots
Normal root anatomy and morphology
Coralloid root development
Other Organisms Present in Cycad Roots
Cyanobacteria
General physiology
Cyanobacteria in symbiosis with Cycads
Specificity and Diversity
Nitrogen fixation
Global nitrogen economy
Physiology of nitrogen fixation
Nitrogen fixation in the Cyanobacteria/Cycad symbiosis
Assimilation of fixed nitrogen
Colonization of Cycad Coralloid roots by Cyanobacteria
Recognition between partners
Mode of colonization
Maintenance
Applications
Future Areas of Study
References and Further Reading
Photo Gallery
The Cycad Pages
The World List
References and Links
Home
© 1998-2012
Royal Botanic Gardens Sydney
Written and maintained by Ken Hill 1998-2010
Maintained by Leonie Stanberg and Dennis Stevenson 2010-2012
This site is currently not being maintained