Publications by authors named "Maria G Maleva"
Article Synopsis
- Elodea canadensis is used as a bioindicator for water quality and phytoremediation of nickel-contaminated water, with a focus on how it accumulates nickel and responds physiologically.
- The study highlights that nickel accumulation in Elodea follows pseudo-second-order kinetics, where the initial phase is dominated by passive binding of nickel and is associated with increased photosynthetic activity and antioxidant responses.
- Conversely, as nickel saturation occurs between 8-24 hours, metabolic activity declines, reflecting a complex relationship between nickel accumulation and the plant's protective responses over time.
Article Synopsis
- Lemna species can absorb various metals from polluted environments, and in this study, they were exposed to cadmium to assess physiological impacts.
- As cadmium concentration increased, key photosynthetic pigments and soluble protein levels decreased, while levels of soluble thiols rose significantly.
- The results suggest that Lemna trisulca employs different adaptive strategies to cope with varying cadmium levels, indicating its potential for use in environmental monitoring and toxicity assessments.
Egeria densa has ability to grow in heavy metal contaminated and polluted bodies of water. Shoots exposed to Cd at concentrations up to 300microM for 7 days showed a pronounced decrease in chlorophyll a and in total protein concentration. Thiol-containing compounds and low-molecular-weight polypeptides were detected in Cd-treated plant extracts by gel filtration chromatography.
View Article and Find Full Text PDFBiological accumulation of nickel and concomitant ecophysiological responses were studied in the leaves of Elodea canadensis treated with different concentrations of Ni (1-50 microM) for 5d. In low concentrations nickel was accumulated mainly in the soluble protein fraction, which correlated with its highest observed accumulation coefficient. In higher concentrations, Ni binding in the non-protein soluble fraction was observed.
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