Effect of pH on Cr(III) accumulation, biomass production, and phenolic profile in 2 Salvinia species
- Chocobar Ponce, Silvana
- Prado, Carolina del Valle
- Pagano, Eduardo Antonio
- Prado, Fernando Eduardo
- Rosa, Mariana Daniela
DOIAbstract
We analyzed the effect of pH on Cr(III) accumulation, biomass production, and phenolic profile of Salvinia rotundifolia and Salvinia minima plants grown in the presence of increasing concentrations of CrCl 3 . Biomass accumulation, metal tolerance index, and photosynthetic pigment contents indicate that Salvinia rotundifolia seems to be more tolerant of Cr(III) than S. minima at different pHs. Increased metal accumulation by Salvinia species under increasing pH could be explained by changes of the protonation status of cell wall functional groups because both the highest and the lowest pH values used in the present study were outside of the levels at which Cr(III) species start to precipitate. The metal translocation factor indicates that i...
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