Characteristics of growth and microcystin production of Microcystis aeruginosa exposed to low concentrations of naphthalene and phenanthrene under different pH values

Hydrogen peroxide modified and bismuth vanadate decorated titanium dioxide nanocomposite (BiVO4@HMT) for enhanced visible light photocatalytic growth inhibition of harmful cyanobacteria in water

“…In this compartment, CO 2 is concentrated together with enzyme Rubisco for the process of photosynthesis, thus increasing the content of chlorophyll ‘ a ’, which is necessary for cell division. 56,57 Our study demonstrates, that upon incubation at different pH ranges, the increase in chlorophyll ‘ a ’ content in acidic medium is limited even on the 20 th day of incubation, while under neutral and basic conditions, the growth reached a maximum between pH 8–10 ( Fig. 7a ).…”

“…These results suggested that an alkaline pH in the range from 8 to 10 is the optimum pH (pH 8 also in case of control setup) for cyanobacterial growth, and these results are consistent with the findings of other researchers. 56,58,59…”

“…These results suggested that an alkaline pH in the range from 8 to 10 is the optimum pH (pH 8 also in case of control setup) for cyanobacterial growth, and these results are consistent with the ndings of other researchers. 56,58,59 The poor cyanobacterial growth at pH 11 and 12 (Fig. 7a) can be explained by the absence of CO 3 −2 transporters in system; moreover, at pH 12 and >12, CO 2 become the dominant species, again, which reduces the activity of carbonic anhydrase.…”

Influence of Environmental Factors on Occurrence of Cyanobacteria and Abundance of Saxitoxin-Producing Cyanobacteria in a Subtropical Drinking Water Reservoir in Brazil

“…Several environmental factors have been shown to control the MC production in cyanobacteria. Thus, microcystin production is reported to vary with salinity [91,92], temperature [93,94], light intensity [95,96], pH [97,98] and nutrients [99,100]. However, in the Itupararanga reservoir, no significant correlations between environmental variables, MC concentrations and potentially toxic genera were found.…”

Spatial and temporal variability of cyanobacteria in two subtropical reservoirs: community composition, molecular and cyanotoxin analyses

“…as recommended by the World Health Organization (WHO, 2011). Numerous studies reported that microcystin production could vary with the salinity (Jia et al, 2018;Vergalli et al, 2020), temperature (Bui et al, 2018;Walls et al, 2018), light intensity (Wiedner et al, 2003;Xie et al, 2016;Wang et al, 2019), pH (Francy et al, 2016Huang et al, 2019), and nutrients . However, no significant correlations between environmental variables, MC concentrations and potentially toxic genera were found in this study.…”