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REVISTA DE CHIMIE
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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2014, Volume 65, Issue 4,





ANDA IOANA GRATIELA PETREHELE, DAN RUSU, MONICA ANGELA SIPOS, ALEXANDRINA FODOR, MARIANA RUSU
New Keggin Polyoxometalates with Mixed Addenda as Stimulators
of Triticale Seedlings Growth and Biomass Production

Abstract:

In this paper, six new Keggin polyoxometalates: K8[PVMo10O39] and Kx[MPVMo10O39(H2O)] (x = 6 for M = Mn2+, Cu2+, Co2+, Ni2+ and x = 5 for M = Fe3+) were synthesised and their solutions by 0.1 mM, 1.0 mM, 10 mM and 100 mM concentrations were used to Triticale seeds soaking. All experiments were performed in hermetically germinators, in dim and isolated room, at 22°C and 38% humidity. Germination yields in the fourth and sixth days, the growth of radical and seminal roots, coleoptile and first leaf and biomass production were determined. Germination yields of Triticale seeds were not significantly different between treatment with polyoxometalates solutions and control (distilled water). The growth of seedlings were easy stimulated at increasing of K8[PVMo10O39] . 16H2O concentrations. Heavy metal cations of Kx[MPVMo0O39(H2O)] stimulated the seedlings growth in order: Ni ] Fe ] Mn ] Cu ] Co. Concentrations of heavy metals in Triticale seedlings were determined to establish relationship between their bioaccumulation and inhibitory action. The chelating action of K8[PVMo10O39]’”16H2O and the interaction between heavy metals and molybdenum atoms proved to have an important role. Keywords: Keggin, polyoxometalates, germination, Triticale

Issue: 2014, Volume 65, Issue 4
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