Nitric oxide production is involved in maintaining energy state in Alfalfa (Medicago sativa L.) nodulated roots under both salinity and flooding - Université Nice Sophia Antipolis Accéder directement au contenu
Article Dans Une Revue Planta Année : 2020

Nitric oxide production is involved in maintaining energy state in Alfalfa (Medicago sativa L.) nodulated roots under both salinity and flooding

Résumé

Main conclusion InMedicago sativanodulated roots, NR-dependent NO production is involved in maintaining energy state, presumably through phytoglobin NO respiration, under both salinity and hypoxia stress. The response to low and average salinity stress and to a 5 day-long flooding period was analyzed inM. sativanodulated roots. The two treatments result in a decrease in the biological nitrogen fixation capacity and the energy state (evaluated by the ATP/ADP ratio), and conversely in an increase nitric oxide (NO) production. Under salinity and hypoxia treatments, the use of either sodium tungstate, an inhibitor of nitrate reductase (NR), or carboxy-PTIO, a NO scavenger, results in a decrease in NO production and ATP/ADP ratio, meaning that NR-dependent NO production participates to the maintenance of the nodulated roots energy state.
Fichier principal
Vignette du fichier
Nitric oxide production is involved in maintaining energy.pdf (979.88 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03285554 , version 1 (28-07-2021)

Identifiants

Citer

Fatma Aridhi, Hajer Sghaier, Allyzée Gaitanaros, Ayda Khadri, Samira Aschi-Smiti, et al.. Nitric oxide production is involved in maintaining energy state in Alfalfa (Medicago sativa L.) nodulated roots under both salinity and flooding. Planta, 2020, 252 (2), ⟨10.1007/s00425-020-03422-1⟩. ⟨hal-03285554⟩
91 Consultations
142 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More