Electrochemical monitoring of phytochelatin accumulation in Nicotiana tabacum cells exposed to sub-cytotoxic and cytotoxic levels of cadmium

Ex situ Voltammetry and Chronopotentiometry of Doxorubicin at a Pyrolytic Graphite Electrode: Redox and Catalytic Properties and Analytical Applications

“…4A and inset therein). Similar CPS behavior has recently been observed for other systems involving faradaic and catalytic processes, such as phytochelatins in the presence of cobalt ions [31]. For stripping currents lower than À 5 mA, the peak O cat intensity was by two orders of magnitude higher than intensities of the faradaic peaks which suggests that a high sensitivity of DOX determination can be achieved using the CPS catalytic signal.…”

Multi-instrumental Investigation of Affecting of Early Somatic Embryos of Spruce by Cadmium(II) and Lead(II) Ions

“…Thus, we did the same and adsorbed GSH (100 µM) gave five following signals Co1, RS 2 Co, Cat1, Cat2 and Cat3. The labelling of signals is based on a number of papers published, which have been devoted to determination of thiols by the Brdicka reaction [16,17,39,[52][53][54][55][56][57][58][59][60][61][62][63] to structure of GSH -formation of RS2Co complex ( Figure 5B). The electrochemical behaviour of metallothionein measured by adsorptive transfer stripping technique in connection with different electrochemical methods is known [65][66][67][68][69], but the behaviour of such a small peptide as glutathione is not clear yet.…”

“…PCs have a basic formula (γ-Glu-Cys)n-Gly (n = 2 to 11) and form M-PC complexes with the heavy metals (M), in which the metal is bound via the cysteine unit SH group [1,6,7]. A very wide range of analytical techniques, including both chromatographic coupled with different detectors and stationary ones, such as electrochemical methods, have been utilized for determination of thiols in samples of interest [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Effects of Cadmium Stress on Root Tip Cells and Some Physiological Indexes in Allium Cepa Var. Agrogarum L.

“…Cadmium (Cd), a non-essential element, is among the most hazardous environmental pollutants for humans, animals and plants even at low concentrations (Benavides et al, 2005;Fojta et al, 2006;Mobin and Khan, 2007;Wahid and Ghani, 2008). Cd is not an essential nutrient for plants, and it can accumulate at higher levels in aerial organs (Wang et al, 2007;Zou et al, 2008), inducing phytotoxicity manifested in leaf roll, chlorosis, growth reduction, and eventually death (Benavides et al, 2005;.…”