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Nutrient exchange across the peribacteroid membrane of isolated symbiosomes

  • David A. Day
  • Li-Jun Ou Yang
  • Michael K. Udvardi

Abstract

Nitrogen fixation in legume nodules involves a complicated exchange of regulatory signals and nutrients between the plant cytoplasm and the bacteroid, and this exchange involves transport across two membranes of selective permeability: the bacteroid membrane and the plant-derived envelope surrounding the bacteroid, the peribacteroid membrane (PBM). Following a recently suggested nomenclature (16), we will use the term “symbiosome” to refer to the unit comprised of the PBM and the enclosed bacteroids (formerly called peribacteroid units). However, the term “peribacteroid” remains, in our opinion, an accurate description of the membrane limiting the symbiosome and we will therefore continue to use that term.

Keywords

Nitrogen Fixation Ammonia Transport Soybean Nodule Legume Nodule Dicarboxylate Transport 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Routledge, Chapman & Hall, Inc. 1990

Authors and Affiliations

  • David A. Day
    • 1
  • Li-Jun Ou Yang
    • 1
  • Michael K. Udvardi
    • 1
  1. 1.Botany DepartmentAustralian National UniversityCanberraAustralia

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