Rhizobium symbiotic efficiency meets CEP signaling peptides.

Autor: Laffont C; Institute of Plant Sciences Paris Saclay (IPS2), CNRS, Paris-Saclay University, Paris-Cité University, INRAE, Univ d'Evry, Bat. 630, Avenue des Sciences, Gif-sur-Yvette, 91190, France., Frugier F; Institute of Plant Sciences Paris Saclay (IPS2), CNRS, Paris-Saclay University, Paris-Cité University, INRAE, Univ d'Evry, Bat. 630, Avenue des Sciences, Gif-sur-Yvette, 91190, France.
Jazyk: angličtina
Zdroj: The New phytologist [New Phytol] 2024 Jan; Vol. 241 (1), pp. 24-27. Date of Electronic Publication: 2023 Nov 04.
DOI: 10.1111/nph.19367
Abstrakt: C-terminally encoded peptides (CEP) signaling peptides are drivers of systemic pathways regulating nitrogen (N) acquisition in different plants, from Arabidopsis to legumes, depending on mineral N availability (e.g. nitrate) and on the whole plant N demand. Recent studies in the Medicago truncatula model legume revealed how root-produced CEP peptides control the root competence for endosymbiosis with N fixing rhizobia soil bacteria through the activity of the Compact Root Architecture 2 (CRA2) CEP receptor in shoots. Among CEP genes, MtCEP7 was shown to be tightly linked to nodulation, and the dynamic temporal regulation of its expression reflects the plant ability to maintain a different symbiotic root competence window depending on the symbiotic efficiency of the rhizobium strain, as well as to reinitiate a new window of root competence for nodulation.
(© 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.)
Databáze: MEDLINE
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