Figure 6.
Illustration of the two routes by which we propose that carbon is moved from the IRM to the ERM in the AM symbiosis. Carbon taken up from the host in the form of hexose is converted to carbohydrates and storage lipids in the IRM. Lipid and glycogen are translocated from IRM to ERM. Storage (glycogen and trehalose) and structural (chitin) carbohydrates are synthesized in the ERM from hexose that is derived from exported carbohydrate as well as from lipid.