The role of phytochelatins in arsenic tolerance in the hyperaccumulator Pteris vittata
- 29 May 2003
- journal article
- Published by Wiley in New Phytologist
- Vol. 159 (2) , 403-410
- https://doi.org/10.1046/j.1469-8137.2003.00784.x
Abstract
• Pteris vittata was the first identified arsenic (As) hyperaccumulator. Here we investigated whether phytochelatins (PCs) are involved in the hypertolerance of arsenic by P. vittata. • P. vittata was exposed to 0-500 μM arsenate for 5 d, or to 50 μM arsenate for 0-7 d. In addition, L-buthionine-sulphoximine (BSO), an inhibitor of γ-glutamylcysteine synthetase, was used in combination with different arsenate exposures. The relationships between As accumulation and the concentrations of PCs and glutathione (GSH) were examined. • PC synthesis was induced upon exposure to arsenate in P. vittata, with only PKeywords
This publication has 33 references indexed in Scilit:
- Mechanisms of Arsenic Hyperaccumulation in Pteris vittata. Uptake Kinetics, Interactions with Phosphate, and Arsenic SpeciationPlant Physiology, 2002
- Derivatization of Phytochelatins from Silene vulgaris, Induced upon Exposure to Arsenate and Cadmium: Comparison of Derivatization with Ellman's Reagent and MonobromobimaneJournal of Agricultural and Food Chemistry, 2000
- Purification and Characterization of Acr2p, theSaccharomyces cerevisiae Arsenate ReductaseJournal of Biological Chemistry, 2000
- Reduction and Coordination of Arsenic in Indian MustardPlant Physiology, 2000
- Properties of the Arsenate Reductase of Plasmid R773Biochemistry, 1994
- Suppression of the High Affinity Phosphate Uptake System: A Mechanism of Arsenate Tolerance inHolcus lanatusL.Journal of Experimental Botany, 1992
- Genetic control of copper tolerance in Silene vulgarisHeredity, 1992
- Evaluation of Arsenate- and Vanadate-Associated Changes of Electrical Membrane Potential and Phosphate Transport inLemna gibbaG1Journal of Experimental Botany, 1989
- Determination of Inorganic Arsenic (III) and Arsenic (III Plus V) Using Automated Hydride-Generation Atomic-Absorption SpectrometrySoil Science Society of America Journal, 1988
- Arsenic Uptake by Barley SeedlingsFunctional Plant Biology, 1979