6533b86dfe1ef96bd12cab16
RESEARCH PRODUCT
Nitric oxide and glutathione impact the expression of iron uptake- and iron transport-related genes as well as the content of metals in A. thaliana plants grown under iron deficiency
Grażyna DobrowolskaAngélique Besson-bardAgnès KlinguerEmmanuel KoenDavid WendehenneKatarzyna Patrycja Szymańskasubject
0106 biological sciencesmineral contentShort CommunicationIron[SDV]Life Sciences [q-bio]ArabidopsisPlant ScienceGenes PlantNitric Oxide01 natural sciencesPlant RootsNitric oxideS-Nitrosoglutathione03 medical and health scienceschemistry.chemical_compoundDownregulation and upregulationGene Expression Regulation PlantArabidopsismineral deficienciesmedicineArabidopsis thalianaglutathione030304 developmental biologymineral uptakeRegulation of gene expression0303 health sciencesManganesebiologyArabidopsis Proteinsarabidopsis thalianaBiological TransportIron deficiencyGlutathioneIron Deficienciesbiology.organism_classificationmedicine.diseaseZincchemistryBiochemistryS-Nitrosoglutathione[SDE]Environmental Sciencesgene expressionCopper010606 plant biology & botanydescription
International audience; Mounting evidence indicate that nitric oxide (NO) acts as a signaling molecule mediating iron deficiency responses through the upregulation of the expression of iron uptake-related genes. Accordingly, NO donors such as nitrosoglutathione (GSNO) were reported to improve the fitness of plants grown under iron deficiency. Here, we showed that glutathione, a by-product of GSNO, triggered the upregulation of the expression of iron uptake- and transport-related gene and an increase of iron concentration in Arabidopsis thaliana seedlings facing iron deficiency. Furthermore, we provided evidence that under iron deficiency, NO released by GSNO did not improve the root iron concentration but impacted the content of copper. Collectively, our data highlight the complexity of interpreting data based on the use of NO donors when investigating the role of NO in iron homeostasi
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-10-01 |