Bioremediation of Landoltia punctata to Microcystis aeruginosa Contaminated Waters

作者: Shi Li , Sixiu Le , Guolin Li , Mei Luo , Rui Wang

DOI: 10.3390/W12061764

关键词:

摘要: Microcystis aeruginosa is one of the dominant algae in “phytoplankton bloom” phenomenon. A high density microcystins (MCs) are produced when have explosive growth, which can damage water environment and pose a great threat to aquatic animals, plants, human health. Duckweed (Landoltia punctata) morphologically highly degraded flowering plant with short growth cycle wide environmental adaptability. Importantly, duckweed grow eutrophic has potential remediation. The present study aims analyze physiological biochemical changes L. punctata co-culturing M. laboratory. Our results showed that all biomass, chlorophyll content, antioxidant enzyme activities, amylase activity increased 2 × 108 cells/L 4 for aeruginosa, also significantly reduced 1.6 109 while cytotoxic substance (malondialdehyde (MDA)) content completely opposite trend. After co-culturing, it was found MC 138.87 g/g, removal rate 29.48%. These indicate normally high-density paves way punctata’s bioremediation polluted by aeruginosa.

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