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- Title
Terminal bacteroid differentiation in the legume−rhizobium symbiosis: nodule-specific cysteine-rich peptides and beyond.
- Authors
Alunni, Benoît; Gourion, Benjamin
- Abstract
Contents411I.411II.412III.412IV.413V.414VI.414VII.415VIII.415416References416 Summary: Terminal bacteroid differentiation (TBD) is a remarkable case of bacterial cell differentiation that occurs after rhizobia are released intracellularly within plant cells of symbiotic legume organs called nodules. The hallmarks of TBD are cell enlargement, genome amplification and membrane permeabilization. This plant‐driven process is governed by a large family of bacteroid‐targeted nodule‐specific cysteine‐rich (NCR) peptides that were until recently thought to be restricted to a specific lineage of the legume family, including the model plant Medicago truncatula. Recently, new plant and bacterial factors involved in TBD have been identified, challenging our view of this phenomenon at mechanistic and evolutionary levels. Here, we review the recent literature and discuss emerging questions about the mechanisms and the role(s) of TBD.
- Subjects
PLANT morphology; NITROGEN content of legumes; LEGUME proteins; NITROGEN fixation; NITROGEN-fixing bacteria; PLANT cells &; tissues; RHIZOBIUM leguminosarum
- Publication
New Phytologist, 2016, Vol 211, Issue 2, p411
- ISSN
0028-646X
- Publication type
Article
- DOI
10.1111/nph.14025