Rhizobium symbiotic efficiency meets CEP signaling peptides.
New Phytol
; 241(1): 24-27, 2024 Jan.
Article
em En
| MEDLINE
| ID: mdl-37924218
ABSTRACT
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.
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Base de dados:
MEDLINE
Assunto principal:
Rhizobium
/
Medicago truncatula
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article