THE PERIBACTEROID MEMBRANE

The objective of this review is to summarise current knowledge about t he structure and function of the peribacteroid membrane from the root nodules of leguminous plants. The information is presented in terms of development of this symbiotic membrane from its origin, through proli feration and in the mature state. There are clear indications that the peribacteroid membrane has a distinct structure and function at each developmental stage. The mature peribacteroid membrane has been the mo st intensively studied. The lipid and protein content of the mature pe ribacteroid membrane is discussed with particular emphasis on genetic and functional studies of the proteins. The mechanism and control of p eribacteroid membrane biogenesis is also discussed. There is evidence for a specific biogenetic pathway for this membrane which requires bot h symbiotic partners for its correct functioning.