A. BERGER - Plant nitrate reductases and phytoglobins control nitrogen-fixing...

A. BERGER - Plant nitrate reductases and phytoglobins control nitrogen-fixing symbiosis by regulating nitric oxide accumulation

03 juin 2022

Salle de séminaire FR AIB

Antoine Berger, chercheur au sein de l'unité INRAE Agroécologie de DIJON, viendra présenter ses travaux sur la symbiose le 24 juin prochain en salle de séminaire FR AIB.

Abstract

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During symbiosis between legume and rhizobia, either successively or simultaneously, Nitric Oxide (NO) regulates gene expression, modulates enzyme activities, and acts as a metabolic intermediate in energy regeneration processes via the phytoglobin-NO respiration and the bacterial denitrification pathway.

Due to the transition from normoxia to hypoxia during the formation of the nodule and to the progressive presence of the bacterial partner in the growing nodules, NO production and degradation pathways change during the symbiotic process. This presentation will highlight the role of nitrate reductases and hemoproteins of plants in the control of NO accumulation.

En savoir plus

Antoine Berger

Après une thèse à l’UMR ISA (Sophia-Antipolis) et un post-doc en Floride, Antoine Berger mène actuellement ses recherches en biochimie et biologie végétale en tant que post-doc au sein de l'unité Agroécologie (INRAE de Dijon).

  • Page Research Gate
  • Contact FR AIB : Claude Bruand (LIPME)
  • Sélection de publications :
    • Berger A, Boscari A, Maucourt M, Hanchi M, Bernillon S, Rolin D, Puppo A, Brouquisse R, 2020. Plant nitrate reductases regulate nitric oxide production and nitrogen-fixing metabolism during the Medicago truncatula - Sinorhizobium meliloti symbiosis. Frontiers in Plant Science, 11:1313. doi: 10.3389/fpls.2020.01313
    • Berger A, Guinand S, Boscari A, Puppo A, Brouquisse R. 2020. Medicago truncatula Phytoglobin 1.1 controls symbiotic nodulation and nitrogen fixation via the regulation of nitric oxide level. New Phytologist. doi: 10.1111/nph.16462

Contact: changeMe@inrae.fr

Date de création : 06 juin 2023