Toxicity of hexachlorobenzene and its transference from microalgae (Chlorella kessleri) to crabs (Chasmagnathus granulatus)

Chaufan, Gabriela; Juárez, Ángela Beatriz; Basack, Silvana; Ithuralde, Raúl Esteban; Sabatini, Sebastián E.; Genovese, Griselda; Oneto, M. L.; Kesten, Eva; Molina, M.

doi:10.1016/j.tox.2006.08.011

Cited by 31 publications

(13 citation statements)

References 25 publications

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“…Chlorella kessleri is a particular green microalga that is available in commercial applications for wastewater treatment purposes and has shown more tolerance than other microalgae species to chromium, copper, herbicide and hexachlorobenzene. 11,12,13,14 Recently, C. kessleri was reported to be capable of mixotrophic growth to accumulate fatty acids when cultivated on centrate, which is generated by centrifuging activated sludge and contains 652 www.soci.org Y Wang, T Chen, S Qin both organic carbon and inorganic carbon. 15 These suggest potential for integration of C. kessleri cultivation as biodiesel production feedstock with organic wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Differential fatty acid profiles of Chlorella kessleri grown with organic materials

Wang

Chen

Qin

2012

J of Chemical Tech & Biotech

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BACKGROUND: Integration of oleaginous microalgae cultivation with wastewater treatment is considered a low‐cost approach for manufacturing algae‐based biodiesel. However, autotrophic microalgae cannot survive in organic wastewater where the effluent is usually turbid and sunlight cannot penetrate into the wastewater. Thus mixotrophic microalgae should be explored. The objective of this study was to investigate the potential of using mixotrophic Chlorella kessleri to produce fatty acids from organic materials. RESULTS: Results revealed that mixotrophic C. kessleri fatty acids display much greater productions (up to 54.67% of cell dry weight) and more suitable compositions for biodiesel production (moderate carbon chain length mainly with C16 and C18, down to 1.17 ∇/mol of unsaturation degree) than autotrophic ones. A suitable final pH (near neutral) after nitrate‐depletion and a high organic carbon consumption seemed to be the key factors manipulating fatty acids production under whichever organic substrate tested. CONCLUSION: These characteristics increase the acceptability in using mixotrophic C. kessleri as a potential easy‐control candidate in biodiesel production. If fed with available organic effluent of wastewater as the nutrient supply, C. kessleri may have great potential for profitable biodiesel. © 2012 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Differential fatty acid profiles of Chlorella kessleri grown with organic materials

Wang

Chen

Qin

2012

J of Chemical Tech & Biotech

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“…The histology of the hepatopancreas shows effects even at lowest concentrations in the form of an increase in the number and diameter of B cells compared to the control group for every concentration of TBA for noble crayfishes. In addition, we found damage to membrane structures similar to Chaufan et al (2006) for every concentration. Their study revealed disorganisation in hepatopancreas tubules as well as increased diameters and numbers of B cells on hepatopancreas cells after feeding crabs (Chasmagnathus granulatus) with hexachlorobenzen-contaminated Chlorella for 3 days.…”

Section: Discussionmentioning

confidence: 63%

Noble Crayfish Are More Sensitive to Terbuthylazine than Parthenogenetic Marbled Crayfish

Laurenz

Lietz

Brendelberger

et al. 2020

Water Air Soil Pollut

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We investigated the sensitivity of two freshwater crayfish species (Astacus astacus and Procambarus virginalis) during embryonic development to chronic exposure to the herbicide terbuthylazine under laboratory conditions. The assessed parameters included time of embryonic development, survival rate, hatching weight and histopathology of hepatopancreas. LC50 (median lethal concentration) and ED50 (median effective concentration) were estimated. We were able to determine effects of terbuthylazine for every investigated parameter. For noble crayfish, the LC50 value after 45 days was 0.11 mg/L, and the histology of the hepatopancreas showed effects starting from 0.025 mg/L. Other parameters revealed effects starting at concentrations of 1.6 mg/L for weight and 6.4 mg /L for embryonic development time and hatching rate. Marbled crayfish only showed effects concerning the hatching rate and survival rate at concentrations without a clear dose-effects curve. As a conclusion, our data shows the risk of terbuthylazine in existing concentrations in freshwater ecosystems to non-target organisms and also the need of toxicological studies on directly affected species in addition to the use of model organisms.

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“…Superoxide dismutases (SODs) are enzymes that rapidly catalyze the transformation of O 2 •− into molecular oxygen (O 2 ) and hydrogen peroxide (H 2 O 2 ) (Fridovich, 1995). Several studies have demonstrated the role of these enzymes in xenobiotic detoxification (Park et al, 2012;Li et al, 1996a,b;Canada and Calabrese, 1989), and less known is the effect of xenobiotics on the expression of SODs in crustaceans (Ragunathan, 2017;Gorokhova et al, 2013;Chaufan et al, 2006). Thus, this study demonstrates that P. argentinus harbors a remarkable arsenal of effective detoxification protective mechanisms against the ROS generated by exposure to toxic compounds.…”

Section: Discussionmentioning

confidence: 99%

De novo assembly and transcriptome characterization of the freshwater prawn Palaemonetes argentinus: Implications for a detoxification response

et al. 2018

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Palaemonetes argentinus, an abundant freshwater prawn species in the northern and central region of Argentina, has been used as a bioindicator of environmental pollutants as it displays a very high sensitivity to pollutants exposure. Despite their extraordinary ecological relevance, a lack of genomic information has hindered a more thorough understanding of the molecular mechanisms potentially involved in detoxification processes of this species. Thus, transcriptomic profiling studies represent a promising approach to overcome the limitations imposed by the lack of extensive genomic resources for P. argentinus, and may improve the understanding of its physiological and molecular response triggered by pollutants. This work represents the first comprehensive transcriptome-based characterization of the non-model species P. argentinus to generate functional genomic annotations and provides valuable resources for future genetic studies. Trinity de novo assembly consisted of 24,738 transcripts with high representation of detoxification (phase I and II), anti-oxidation, osmoregulation pathways and DNA replication and bioenergetics. This crustacean transcriptome provides valuable molecular information about detoxification and biochemical processes that could be applied as biomarkers in further ecotoxicology studies.

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Toxicity of hexachlorobenzene and its transference from microalgae (Chlorella kessleri) to crabs (Chasmagnathus granulatus)

Cited by 31 publications

References 25 publications

Differential fatty acid profiles of Chlorella kessleri grown with organic materials

Differential fatty acid profiles of Chlorella kessleri grown with organic materials

Noble Crayfish Are More Sensitive to Terbuthylazine than Parthenogenetic Marbled Crayfish

De novo assembly and transcriptome characterization of the freshwater prawn Palaemonetes argentinus: Implications for a detoxification response

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