ROI-scavenging enzyme activities as toxicity biomarkers in three species of marine microalgae exposed to model contaminants (copper, Irgarol and atrazine)

Lozano, Pablo; Trombini, Chiara; Crespo, Elena; Blasco, Julián; Moreno-Garrido, Ignácio

doi:10.1016/j.ecoenv.2014.03.021

Cited by 46 publications

(22 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 2show the effect of different concentrations of Irgarol 1051 on growth of Chlorella salina and Dunaliella bardawil cultured for 14 days. The same results were also obtained by[18] [19] [20],[13] found that new molecular tools are capable of detecting cell-stress after short exposure times, and provide rapid information about cellular status. Compared to control, the rate of growth increased gradually till the 8 th day of culturing where it reached at maximum in both organisms but with different values, that is cleared in…”

supporting

confidence: 73%

“…Algal cells are able to produce specific molecules or to increase specific enzyme activities in response to stress caused by the presence of substances that are toxic to them [12]. Therefore, with the appropriate tools, these organisms can be used in the design of better "early warning systems" of pollution in the environment, Marine microalgae are proposed as excellent bio-indicators of pollution due to their high sensitivity, which can give warning of the toxic effects of chemicals M. Kaamoush DOI: 10.4236/jep.2018.99056 897 Journal of Environmental Protection sooner than any other species [13]. Since microalgae play a key role in marine ecosystems, they are considered potentially useful for quick and sensitive toxicity bioassays.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Metabolic Response of the Two Marine Unicellular Algae Chlorella salina and Dunaliella bardawil to Toxicity of the Antifouling Agent Irgarol 1051

Kaamoush¹

2018

JEP

View full text Add to dashboard Cite

Toxic pollutants are metabolic poisons that can seriously injure or destroy the photosynthetic organisms upon which the food chain depends. Since microalgae play a key role in marine ecosystems, marine microalgae are proposed as excellent bio-indicators of pollution due to their high sensitivity, which can give warning of the toxic effects of chemicals sooner than any other species. The aim of this work concentrated on the effect of different concentrations of the antifouling biocide (Irgarol 1051) on growth and chlorophylls content (as an essential metabolite) of the two marine unicellular green algae Chlorella salina and Dunaliella bardawil that usually used in fish feeding. The growth of the wall-less Dunaliella bardawil was more sensitive to Irgarol 1051 than the walled cells Chlorella salina, although the concentrations used were greatly different. The product of photosynthesis in the two algal species greatly affected since in the presence of Irgarol 1051, a serious destructive effect was observed. The cell wall appeared to play a significant role in protecting the organism against toxicity of the antifouling agent either by adsorption or degradation. The strength of toxicity depends mainly on the concentration of the antifouling agent, the length of culturing period and the type of organism tested.

show abstract

supporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Metabolic Response of the Two Marine Unicellular Algae Chlorella salina and Dunaliella bardawil to Toxicity of the Antifouling Agent Irgarol 1051

Kaamoush¹

2018

JEP

View full text Add to dashboard Cite

show abstract

“…The determination of antioxidant enzyme activities was also used to evaluate the mechanisms of action of H. vulgare straw extract and fractions on M. aeruginosa. These enzymes participate in the elimination and/or reduction of the damage caused by ROS (Zhang et al, 2013;Lozano et al, 2014;Chia et al, 2015b). As a first line of defense, POD and CAT are involved in the sequestration and conversion of H 2 O 2 to H 2 O and O 2 (Qian et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Response of Microcystis aeruginosa BCCUSP 232 to barley (Hordeum vulgare L.) straw degradation extract and fractions

Mecina

Dokkedal

Saldanha

et al. 2017

Science of The Total Environment

View full text Add to dashboard Cite

The eutrophication of aquatic ecosystems is a serious environmental problem that leads to increased frequency of cyanobacterial blooms and concentrations of cyanotoxins. These changes in aquatic chemistry can negatively affect animal and human health. Environment-friendly methods are needed to control bloom forming cyanobacteria. We investigated the effect of Hordeum vulgare L. (barley) straw degradation extract and its fractions on the growth, oxidative stress, antioxidant enzyme activities, and microcystins content of Microcystis aeruginosa (Kützing) Kützing BCCUSP232. Exposure to the extract significantly (p<0.05) inhibited the growth of M. aeruginosa throughout the study, whereas only the highest concentration of fractions 1 and 2 significantly (p<0.05) reduced the growth of the cyanobacterium on day 10 of the experiment. The production of reactive oxygen species (ROS), lipid peroxidation and antioxidant enzyme activities were significantly (p<0.05) altered by the extract and fractions 1 and 2. Phytochemical profiling of the extract and its fractions revealed that the barley straw degradation process yielded predominantly phenolic acids. These results demonstrate that barley straw extract and its fractions can efficiently interfere with the growth and development of M. aeruginosa under laboratory conditions.

show abstract

“…In the case of Species 2, SOD increases significantly with respect to the control in both magnet configurations. This behavior can be associated to the oxidative stress that SMFs are causing to the cell culture [59]. Medium 2, being ~50 times more conductive than Medium 1, could promote a more effective electron transfer and allowing for a more pronounced ROS formation.…”

Section: Appl Sci 2020 10 X For Peer Reviewmentioning

confidence: 99%

An Analytical–Experimental Approach to Quantifying the Effects of Static Magnetic Fields for Cell Culture Applications

et al. 2020

View full text Add to dashboard Cite

This work aimed to study the effects of static magnetic fields (SMFs) on cell cultures. A glass flask was filled with a liquid medium, which was surrounded by permanent magnets. Air was introduced through a tube to inject bubbles. Two magnet configurations, north and south, were used as perturbation. Scenedesmus obliquus and Nannochloropsis gaditana, growing in Medium 1 and 2, were subjected to the bubbly flow and SMFs. Differences between media were mainly due to conductivity (0.09 S/m for Medium 1 and 4.3 S/m for Medium 2). Joule dissipation ( P ) increased with the magnetic flux density ( B 0 ), being 4 orders of magnitude higher in Medium 2 than in 1. Conversely, the time constant ( τ P ) depended on B 0 , being nearly constant for Medium 1 and decreasing at 449 s/T for Medium 2. Dissipation occurred with the same τ P (235 s) in Medium 1 and 2 at B 0 = 0.5 T. In Species 1, the SMF effect was inhibitory. For Species 2, a higher enzymatic activity was observed. For superoxide dismutase, the relative difference was 78% with the north and 115% with the south configuration compared to the control values. For the catalase, differences of 29% with the north and 23% with the south configuration compared to control condition were obtained.

show abstract

ROI-scavenging enzyme activities as toxicity biomarkers in three species of marine microalgae exposed to model contaminants (copper, Irgarol and atrazine)

Cited by 46 publications

References 41 publications

Metabolic Response of the Two Marine Unicellular Algae <i>Chlorella salina</i> and <i>Dunaliella bardawil</i> to Toxicity of the Antifouling Agent Irgarol 1051

Metabolic Response of the Two Marine Unicellular Algae <i>Chlorella salina</i> and <i>Dunaliella bardawil</i> to Toxicity of the Antifouling Agent Irgarol 1051

Response of Microcystis aeruginosa BCCUSP 232 to barley (Hordeum vulgare L.) straw degradation extract and fractions

An Analytical–Experimental Approach to Quantifying the Effects of Static Magnetic Fields for Cell Culture Applications

Contact Info

Product

Resources

About

ROI-scavenging enzyme activities as toxicity biomarkers in three species of marine microalgae exposed to model contaminants (copper, Irgarol and atrazine)

Cited by 46 publications

References 41 publications

Metabolic Response of the Two Marine Unicellular Algae &lt;i&gt;Chlorella salina&lt;/i&gt; and &lt;i&gt;Dunaliella bardawil&lt;/i&gt; to Toxicity of the Antifouling Agent Irgarol 1051

Metabolic Response of the Two Marine Unicellular Algae &lt;i&gt;Chlorella salina&lt;/i&gt; and &lt;i&gt;Dunaliella bardawil&lt;/i&gt; to Toxicity of the Antifouling Agent Irgarol 1051

Response of Microcystis aeruginosa BCCUSP 232 to barley (Hordeum vulgare L.) straw degradation extract and fractions

An Analytical–Experimental Approach to Quantifying the Effects of Static Magnetic Fields for Cell Culture Applications

Contact Info

Product

Resources

About

Metabolic Response of the Two Marine Unicellular Algae <i>Chlorella salina</i> and <i>Dunaliella bardawil</i> to Toxicity of the Antifouling Agent Irgarol 1051

Metabolic Response of the Two Marine Unicellular Algae <i>Chlorella salina</i> and <i>Dunaliella bardawil</i> to Toxicity of the Antifouling Agent Irgarol 1051