Identification of nickel chelators in three hyperaccumulating plants: An X-ray spectroscopic study

• Published in: Phytochemistry (Oxford) Vol. 69; no. 8; pp. 1695 - 1709
• Main Authors: Montargès-Pelletier, Emmanuelle, Chardot, Vanessa, Echevarria, Guillaume, Michot, Laurent J., Bauer, Allan, Morel, Jean-Louis
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Ltd 01.05.2008; Elsevier
• Subjects: Alyssum murale; analysis; Biological and medical sciences; Brassicaceae; Brassicaceae - chemistry; Brassicaceae - metabolism; carboxylic acids; chelating agents; Chelating Agents - chemistry; Chelating Agents - metabolism; Chelation; Chemical constitution; chemistry; Citrate; citric acid; Citric Acid - analysis; Citric Acid - chemistry; Fundamental and applied biological sciences. Psychology; Glutamic Acid; Glutamic Acid - analysis; Glutamic Acid - chemistry; heavy metals; Hyperaccumulating plants; hyperaccumulators; Leptoplax emarginata; Life Sciences; Ligands; Malate; Malates; Malates - analysis; Malates - chemistry; malic acid; Metabolism; Metabolism. Physicochemical requirements; Molecular Structure; Nickel; Nickel - chemistry; Nickel - metabolism; Noccaea caerulescens; Phytopathology and phytopharmacy; phytoremediation; Plant physiology and development; soil pollution; spectral analysis; Spectrophotometry; Storage; Thlaspi; Thlaspi - chemistry; Thlaspi - metabolism; Thlaspi caerulescens; Vegetal Biology; X-Rays; Storage; Hyperaccumulating plants; Malate; Leptoplax emarginata; Alyssum murale; Chelation; Citrate; Thlaspi caerulescens; Nickel; Molecular structure; Organic acids; Stem; Absorption; Histidine; Cruciferae; Carboxylic acid; Dicotyledones; Angiospermae; Speciation; Thlaspi; Root; Plant leaf; Complexes; Spermatophyta; Aqueous solution; nickel; thlaspi caerulescens; malate; citrate; chelation; hyperaccumulating plants; leptolax emarginata; storage; alyssum murale
• ISSN: 0031-9422; 1873-3700
• DOI: 10.1016/j.phytochem.2008.02.009

Hyperaccumulators Thlaspi caerulescens, Alyssum murale and Leptoplax emarginata were grown in rhizoboxes, on soil enriched with nickel bearing smectite. A direct investigation method demonstrated that nickel cations were majoritarily stored within leaves as Ni(malate) complexes whereas Ni(citrate) c...