Proteomics

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Fremont et al 2023 - Arsenic stress triggers active exudation of arsenic-phytochelatin complexes from Lupinus albus roots

ABSTRACT: Arsenic stress triggers active exudation of arsenic-phytochelatin complexes from Lupinus albus roots

INSTRUMENT(S): 6530A Q-TOF LC/MS

ORGANISM(S): Lupinus Albus (ncbitaxon:3870)

SUBMITTER: Nicholas J. B. Brereton  

PROVIDER: MSV000093078 | MassIVE | Tue Oct 10 14:22:00 BST 2023

REPOSITORIES: MassIVE

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Arsenic stress triggers active exudation of arsenic-phytochelatin complexes from Lupinus albus roots.

Frémont Adrien A   Sas Eszter E   Sarrazin Mathieu M   Brisson Jacques J   Pitre Frédéric Emmanuel FE   Brereton Nicholas James Beresford NJB  

Journal of experimental botany 20240901 18

Arsenic (As) contamination of soils threatens the health of millions globally through accumulation in crops. While plants detoxify As via phytochelatin (PC) complexation and efflux of arsenite from roots, arsenite efflux mechanisms are not fully understood. Here, white lupin (Lupinus albus) was grown in semi-hydroponics, and exudation of glutathione (GSH) derivatives and PCs in response to As was measured using LC-MS/MS. Inhibiting synthesis of the PC precursor GSH with l-buthionine sulfoximine  ...[more]

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