Exogenous cytokinin treatments of a Ni hyper-accumulator, Alyssum Murale, grown in a serpentine soil: Implications for Phytoextraction (Articolo in rivista)

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  • Exogenous cytokinin treatments of a Ni hyper-accumulator, Alyssum Murale, grown in a serpentine soil: Implications for Phytoextraction (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • Luca Cassina: Eliana Tassi; Elisabetta Morelli; Lucia Giorgetti; Damiano Remorini; Rufus L. Cheney; Meri Barbafieri. (2011)
    Exogenous cytokinin treatments of a Ni hyper-accumulator, Alyssum Murale, grown in a serpentine soil: Implications for Phytoextraction
    in International journal of phytoremediation
    (literal)
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  • Luca Cassina: Eliana Tassi; Elisabetta Morelli; Lucia Giorgetti; Damiano Remorini; Rufus L. Cheney; Meri Barbafieri. (literal)
Pagina inizio
  • 90 (literal)
Pagina fine
  • 101 (literal)
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  • Questo studio prende in considerazione la possibilità di trovare nuovi protocolli per migliorare il processi di fitodepurazione di siti contaminati utilizzando piante iperaccumulatrici in combinazione a trattamenti con ormoni vegetali (literal)
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  • 13 (literal)
Rivista
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  • Impact factor : 1,936 (literal)
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  • In questa ricerca è stata valutata la capacità di fitoestrazione del Nichel in Alyssum murale , pianta notoriamente iperaccumulatrice di Nichel, analizzando le variazione indotte in seguito a applicazione di citochinine sulle foglie. Sono stati esaminati i seguenti parametri: crescita della pianta e accumulo di Ni, effetto sullo scambio gassoso, comportamento degli stomi e concentrazione di tioli non proteici. L’applicazione delle citochinine ha aumentato la capacità di fitoestrazione del nichel (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • Cassina, L., E. Tassi, and M. Barbafieri. CNR, Institute of Ecosystem Study, Section of Pisa, Italy; E. Morelli, CNR, Biophysics Institute, Section of Pisa, Italy; L. Giorgetti, CNR, Institute of Agricultural Biology and Biotechnology, Section of Pisa, Italy; D. Remorini, Department of Tree Science, Entomology and Plant Pathology G. Scaramuzzi University of Pisa, Italy; R. L. Cheney,USDA-Agricultural Research Service Environmental Management and By-Product Utilization Lab, Beltsville, Maryland, USA (literal)
Titolo
  • Exogenous cytokinin treatments of a Ni hyper-accumulator, Alyssum Murale, grown in a serpentine soil: Implications for Phytoextraction (literal)
Abstract
  • Application of exogenous plant growth regulators was examined as a viable technique to increase the efficiency of plant metal extraction from contaminated soils. The aim of this study was to investigate the alteration of Ni phytoextraction by Alyssum murale, a Ni hyperaccumulator, following the application of cytokinins. The following parameters were investigated: Ni accumulation, plant growth, gas exchange, stomata behavior and the concentration of nonprotein thiols (glutathione, y-Glu-Cys, and phytochelatins). In a pot experiment, A. murale plants grown in a serpentine soil were treated with a mix of naturally occurring cytokinins. Results showed that Ni accumulation in plants ranged from 4000 to 7000 mg kg-1 confirming the hyper-accumulation ability from the soil used. Cytokinin treatments produced a significant increase in plant biomass and transpiration rate whereas no significant variation in Ni accumulation or the concentration of non-protein thiols was observed. The results suggest that A. murale is a plant species sensitive to cytokinin treatment and that cytokinin treatment is potentially useful in increasing the phytoextraction capability by increasing biomass. Moreover, for first time, evidence was obtained that the Ni hyperaccumulation mechanism is independent of water flux and transpiration rate. (literal)
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