How do toxic metals affect harmful cyanobacteria? An integrative study with a toxigenic strain of Microcystis aeruginosa exposed to nickel stress

Martínez-Ruiz, Erika Berenice; Martínez‐Jerónimo, Fernando

doi:10.1016/j.ecoenv.2016.06.040

Cited by 25 publications

(14 citation statements)

References 73 publications

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“…This phenomenon would cause a series of metabolic disorders and interfere with the absorption, transport, infiltration, and adjustment of all substances within the algal cells. Excessive metal nutrients entering algal cells may not only combine with intracellular proteins, nucleic acids, and enzymes, but also replace these materials, and directly reduce the cell activity. In addition, the toxic effects of high‐level metal ions were similar to oxidative stress, and they not only inhibited the generation and activity of protective enzymes but also produced a large number of active oxygen free radicals (Martinez‐Ruiz & Martinez‐Jeronimo, ; Rzymski, Poniedzialek, Niedzielski, Tabaczewski, & Wiktorowicz, ). Active oxygen free radicals can damage the cellular biological macromolecules (such as proteins and nucleic acids), causing membrane lipid peroxidation.…”

Section: Discussionmentioning

confidence: 99%

“…To date, most research on cyanobacterial blooms (Jayme‐Torres & Hansen, ; Lee, Rollwagen‐Bollens, Bollens, & Faber‐Hammond, ; Muri et al., ; Zhang et al., ) has been associated with environmental factors affecting algal growth and the effects of the nutrient sources nitrogen and phosphorus and the ratio of N:P on the bloom and its final biomass. However, it has become increasingly recognized that metal nutrients play an important role in algal blooms (Martinez‐Ruiz & Martinez‐Jeronimo, ; Pokrovsky & Shirokova, ). Some investigations have explored trace metal elements that cause algal proliferation and related mechanisms, and have achieved various findings on the relationship between trace elements and algal growth (Jia, Chen, Zuo, Lin, & Song, ; Martinez‐Ruiz & Martinez‐Jeronimo, ; Sun et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…However, it has become increasingly recognized that metal nutrients play an important role in algal blooms (Martinez‐Ruiz & Martinez‐Jeronimo, ; Pokrovsky & Shirokova, ). Some investigations have explored trace metal elements that cause algal proliferation and related mechanisms, and have achieved various findings on the relationship between trace elements and algal growth (Jia, Chen, Zuo, Lin, & Song, ; Martinez‐Ruiz & Martinez‐Jeronimo, ; Sun et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…Cellular levels of microcystin (per unit chlorophyll a ) were concomitant with specific growth, rather than being triggered in response to either of these stressors (ultraviolet radiation, or zinc and copper) alone or in combination. Martinez‐Ruiz and Martinez‐Jeronimo () also evaluated the effect of subinhibitory nickel concentrations on a toxigenic strain of M. aeruginosa and on microcystin production. M. aeruginosa was affected by nickel at very low concentrations, even lower than those established as the safe limit to protect aquatic biota.…”

Section: Introductionmentioning

confidence: 99%

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Effects and control of metal nutrients and species on Microcystis aeruginosa growth and bloom

Zhou

Chen

Liu

et al. 2019

Water Environment Research

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The effects and control of typical metal nutrients, copper, iron, and zinc, on the growth and bloom of Microcystis aeruginosa were investigated with a series of flaskshaking tests. The optimal concentrations of copper, iron, and zinc for algal growth were 0.001, 3-12, and 0.05 mg/L, respectively. The order of toxicity to the alga was Cu > Zn > Fe. The effects of the species, for a trace metal at the same concentrations, on the growth of M. aeruginosa were relatively remarkable. Ionic and complexation species induced more algal growth than the carbonate and sulfide-bound species. Changes in copper concentration and iron species were adopted to adjust and control the bloom of M. aeruginosa. Increases in copper concentrations significantly suppressed the M. aeruginosa bloom. The growth rate of M. aeruginosa slowed significantly when ionic iron was replaced with sulfide-bound iron, and the control of bloom was remarkable. • Practitioner points• Using trace metal nutrient species and concentration to regulate and control algal growth and bloom may pave another way for the management of cyanobacterial bloom.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects and control of metal nutrients and species on Microcystis aeruginosa growth and bloom

Zhou

Chen

Liu

et al. 2019

Water Environment Research

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“…In addition, Martinez‐Ruiz and Martinez‐Jeronimo () reported EC50 and EC10 values for the cyanobacterium Microcystis aeruginosa as low as 3.7 and 0.7 µg/L (nominal Ni) under high bioavailability conditions (low DOC). Normalization of the Ni SSD to the growth medium used by (Martinez‐Ruiz and Martinez‐Jeronimo ; algal assay procedure medium) results in a bioavailability‐normalized EC10 for L. stagnalis of 1.0 µg/L (dissolved Ni; Supplemental Data, Table S5.3). Hence, M. aeruginosa might show a similar sensitivity as L. stagnalis , although this requires confirmation with an M. aeruginosa toxicity test in which the (low) Ni exposure concentrations are analytically confirmed by measurements during the experiment.…”

Section: Conclusion and Implications For Ni Risk Assessmentmentioning

confidence: 99%

The Effects of Nickel on the Structure and Functioning of a Freshwater Plankton Community Under High Dissolved Organic Carbon Conditions: A Microcosm Experiment

Nys

Regenmortel

Schamphelaere

2019

Enviro Toxic and Chemistry

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In the present study, we aimed to test the protectiveness of the bioavailability‐normalization procedure, with its associated hazardous concentrations for x% of the species (HCx), that is currently implemented to derive environmental threshold concentrations for nickel (Ni) in European environmental legislative frameworks. We exposed a natural plankton‐dominated community to 3 constant Ni concentrations, that is, a control with no Ni added (background Ni of 1.2–4 µg/L) and the bioavailability‐normalized HC5 and HC50 of 24 and 97 µg dissolved Ni/L, respectively, during a 56‐d microcosm experiment under high dissolved organic carbon (DOC) conditions (DOC of 14 mg/L at test initiation). The effects of the bioavailability‐normalized HC5 and HC50 values were evaluated at the levels of community structure (community composition and plankton group abundances), community functioning (measured as indirect physicochemical proxies for overnight respiration and carbon fluxes), and individual species abundances. The bioavailability‐normalized HC50 treatment had clear effects (defined as effects occurring on at least 2 consecutive sampling days) on both the structure and functioning of the investigated aquatic community. Through its effect on community functioning (i.e., reduced pH and DOC), Ni also influenced its own bioavailability. Clear direct effects of Ni were observed for only 3 species (the Cyanobacteria Oscillatoria sp. 1 and the rotifers Asplanchna/Testidunela sp. and Trichocerca group similis). Most other effects occurring in the plankton community in the HC50 treatment were indirect and likely driven by the direct effect of Ni on the Cyanobacteria Oscillatoria sp. 1, which was the dominant phytoplankton species in the control microcosms. In contrast, the bioavailability‐normalized HC5 did not induce clear effects on community structure and functioning endpoints: these were only affected on individual sampling days. Clear (direct) effects were observed for only 2 plankton species (the rotifer Trichocerca group similis and the Cyanobacteria Oscillatoria sp. 1), but their abundances recovered to control levels at the end of the study. In addition, a few species (1 phytoplankton and 3 zooplankton species) were affected in the HC5 treatment only on the last sampling day. It is uncertain whether these species would have shown clear effects over a longer exposure duration. Thus, our study shows that the bioavailability‐normalized HC5 of Ni at high DOC induced clear effects on a few individual species. However, the overall conclusion is that the bioavailability‐normalized HC5 of Ni as derived through the procedure that is currently implemented in European legislative frameworks protects against clear effects on community structure and function. Environ Toxicol Chem 2019;38:1923–1939. © 2019 SETAC.

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Reactive Oxygen Species Metabolism and Antioxidant Defense in Plants Under Metal/Metalloid Stress

Mahmud

Bhuyan

Anee

et al. 2019

Plant Abiotic Stress Tolerance

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How do toxic metals affect harmful cyanobacteria? An integrative study with a toxigenic strain of Microcystis aeruginosa exposed to nickel stress

Cited by 25 publications

References 73 publications

Effects and control of metal nutrients and species on Microcystis aeruginosa growth and bloom

Effects and control of metal nutrients and species on Microcystis aeruginosa growth and bloom

The Effects of Nickel on the Structure and Functioning of a Freshwater Plankton Community Under High Dissolved Organic Carbon Conditions: A Microcosm Experiment

Reactive Oxygen Species Metabolism and Antioxidant Defense in Plants Under Metal/Metalloid Stress

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