Record ID No. |
848 |
Author(s) |
Fitter,A.H , 2006 |
Affiliation |
Department of Biology, University of York, York YO10 5YW, UK. |
Title |
What is the link between carbon and phosphorus fluxes in arbuscular mycorrhizas? A null hypothesis for symbiotic function |
Source. Vol.(no):Page |
New-Phytologist. 172(1): 3-6p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Biochemistry |
Sub-subjects |
|
Host |
Plants |
Organism |
AMF |
Country |
U.K., Europe |
Abstracts |
This letter briefly discusses the key functional benefit of arbuscular mycorrhizal (AM) fungi to the plant in terms of nutrient supply, and details the effective mechanism for its symbiotic functions. The mechanism proposed is that C-P exchange in the arbuscular mycorrhiza is regulated by the transport of phosphate across the arbuscule interface, directly stimulating the supply of C by the plant to a spatially defined cation in the root, with fungus capturing hexose that consequently leak into the apoplast. Other features of the AM symbioses are reviewed. In addition, a number of clear predictions about the biology of symbioses are given. |