Published 4 issues per year
ISSN Print: 1521-9429
ISSN Online: 1940-4328
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Chromium-induced in vivo DNA changes in marine algae Oscillatoria willei BDU 130511 (Cyanophyta)
ABSTRACT
This work has been devised to resolve and examine the fate of chromosomal DNA of marine cyanobacterium (Cyanophyta) Oscillatoria willei BDU 130511 upon chromium exposure. The organism exhibited ability to grow at 1 mM hexavalent chromium. Decreased intensity at base stacking and 3 nm red-shift in the helicity band of circular dichroism (CD) spectrum coupled with decreased DNA viscosity; which demonstrated the change in structure of DNA through possible electrostatic interaction of Cr (III) ions as an adaptive mechanism. Increased chromate reductase activity provided evidence for the conversion of toxic Cr (VI) to less toxic Cr (III).
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Didur Olivier, Dewez David, Popovic Radovan, Alteration of chromium effect on photosystem II activity in Chlamydomonas reinhardtii cultures under different synchronized state of the cell cycle, Environmental Science and Pollution Research, 20, 3, 2013. Crossref
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Costa Cristina Henning da, Perreault François, Oukarroum Abdallah, Melegari Sílvia Pedroso, Popovic Radovan, Matias William Gerson, Effect of chromium oxide (III) nanoparticles on the production of reactive oxygen species and photosystem II activity in the green alga Chlamydomonas reinhardtii, Science of The Total Environment, 565, 2016. Crossref