Copper-induced changes of non-protein thiols and antioxidant enzymes in the marine microalga Phaeodactylum tricornutum

Response of antioxidant activity to excess copper in two cultivars of Brassica campestris ssp. chinensis Makino

“…5b). This may suggest that POD activity showed different response to copper stress in different plant species (Morelli and Scarano 2004). In fact, multiple isoforms of POD have been reported in higher plants (Mazhoudi et al 1997), and exposure to Cu resulted in no significant modification in POD activity in the soluble fraction of pea leaves (Chaoui and Ferjani 2005).…”

Phytochelatins in the Diatom Phaeodactylum tricornutum Bohlin: An Evaluation of their Use as Biomarkers of Metal Exposure in Marine Waters

“…These results agree with earlier studies carried out in a number of representative marine microalgae grown in steady-state conditions in EDTA-buffered Aquil, showing that the PC production is an increasing function of the free metal ion in the medium, even if the degree of PC synthesis varies widely among the species. P. tricornutum has been shown to be able to synthesize PC in response to the most common metals (Rijstenbil and Wijnholds 1996;Morelli and Scarano 2001;Ahner et al 2002;Morelli and Scarano 2004), and its use in marine bioassays is widely diffused because of its easy cultivation and metal tolerance (Horvatić and Peršić 2007). The present results at low concentration of fixed free metal ions suggest that the presence of PC in this alga may represent an useful biological indicator for the assessment of metal pollution in marine waters.…”

Effects of [Cu(2-MeSNic)2(MeNia)2(H2O)2]·H2O and [Cu(2-MeSNic)2(H2O)]2 on Candida albicans

“…Then, proteins in the extracellular space as marker of change perme ability membranes were determined. Production of endogenous reactive oxygen species in the presence of copper complexes was also observed in other types of cells, such as cell lines (Paulíková et al, 2008) or algae (Morelli and Scarano, 2004). This hypothesis may be supported by R value 0.003 for [Cu(2-MeSNic) 2 (Nia) 2 (H 2 O) 2 ] and Serratia marcescens (where Nia is nicotinamide; Dudová et.…”