Growth inhibition of Microcystis aeruginosa by white-rot fungus Lopharia spadicea

Water Science and Technology : a Journal of the International Association on Water Pollution Research
Q WangX Tian

Abstract

Harmful cyanobacterial blooms cause water deterioration and threaten human health. It is necessary to remove harmful cyanobacteria with useful methods. A bio-treatment may be one of the best ways to do this. A strain of specific white-rot fungus, Lopharia spadicea, with algicidal ability was isolated. Its algicidal ability on algae under various conditions was determined using three main influence factors: initial chlorophyll-a content, initial pH, and algal cell mixture. The result showed that the chlorophyll-a content of Microcystis aeruginosa FACHB-912, Oocystis borgei FACHB-1108, and Microcystis flos-aquae FACHB-1028 decreased from 798+/-13, 756+/-40, and 773+/-24 microg/L to 0 within 39 h. L. spadicea could also remove more than 95% chlorophyll-a when initial chlorophyll-a content increased from 397+/-13 to 2,132+/-4 microg/L. Moreover, the strain has great removal ability under a broad initial pH range of 5.5 to 9.5. The chlorophyll-a content of the three algal strain mixtures decreased from about 672+/-23 microg/L to 0 within 45 h. After superoxide dismutase (SOD) and malondialdehyde (MAD) were assessed in a co-culture of L. spadicea, it was observed that an increase in MAD content was correlated with the decrease in chl...Continue Reading

Citations

May 31, 2014·Toxicon : Official Journal of the International Society on Toxinology·Zakaria A MohamedSaad A Alamri
Nov 17, 2011·Letters in Applied Microbiology·Y JiaX Tian
Dec 17, 2014·Toxins·Justine R SchmidtGregory L Boyer
May 31, 2021·Environmental Science and Pollution Research International·Zakaria A MohamedVitor Vasconcelos

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