Biochemical metal accumulation effects and metalloprotein metal detoxification in environmentally exposed tropical Perna perna mussels

Applying Silver Nanoparticles to Enhance Metabolite Accumulation and Biodiesel Production in New Algal Resources

“…The cellular lipid content acts as an electron sink of ROS to improve the preservation of cellular redox homeostasis and alleviate possible oxidative damage caused by AgNPs [28]. In one study, the lipid content significantly increased from 24 h exposure of AgNPs to Poterioochromonas malhamensis [43] because under AgNP stress, malonyl-ACP enters the fatty acid synthesis pathway where β-ketoacyl ACP synthase located on cell membrane catalyzes the condensation reactions to accumulate fatty acids, as found in the current study [44]. The lipid content was improved by 27.8, 32.2, and 53.4 in Scenedesmus obliquus by MgO NPs at 0.8, 40, and 100 mg/L, respectively, because algae accumulate lipids as an energy source in response to stress [22].…”

Atomic Spectrometry Update: review of advances in elemental speciation

“…The biochemical metal accumulation effects and metalloprotein metal detoxification in environmentally exposed tropical Perna perna mussels has been investigated. 69 Samples were collected from four sites in two bays in SE Brazil, one anthropogenically impacted and one previously considered a clean reference site for metal contamination. Gill metallothionein, reduced GSH, carboxylesterase and lipid peroxidation were determined by UV-vis, and metal and metalloid contents were determined by ICP-MS. Metalloprotein metal detoxification routes in heat-stable cellular gill fractions were assessed by SEC-HPLC-ICP-MS. Several associations between metals and oxidative stress endpoints were observed at all four sampling sites using PCA.…”

“…The role of metalloproteins in metal detoxification in environmental exposed Perna perna myfilid mussels have been explored. 69 The following metal/metalloids were evaluated: Se, Cd, Cu, As, Zn Pb and Ni. Mussels were collected from two tropical bays in Southeastern Brazil, dissected and the gill samples of 10 individuals pooled and frozen at −20 °C.…”

Metal-binding biomolecules in the liver of northern pike (Esox lucius Linnaeus, 1758): The first data for the family Esocidae

“…In recent years, our research group have initiated a series of investigations on few organs (liver, gills, intestine) of several fish species (European and Vardar chub (Squalius cephalus and Squalius vardarensis; Krasnići et al, 2013Krasnići et al, , 2014Krasnići et al, , 2018Krasnići et al, , 2019, Prussian carp (Carassius gibelio; Dragun et al, 2020;Mijošek et al, 2021), brown trout (Salmo trutta; Dragun et al, 2018)), to describe the distribution of a number of metals among the cytosolic biomolecules of different molecular masses by use of SEC-HPLC and high resolution (HR) ICP-MS. Similar type of studies was so far conducted by only few researchers, and encompassed analyses on fish organs (liver of juvenile yellow perch (Perca flavescens; Caron et al 2018); liver and gonads of white suckers (Catostomus commersonii; Urien et al, 2018)) and on the other aquatic organisms (Perna perna mussels: gills (Hauser-Davis et al, 2021) and muscle and digestive gland (Lavradas et al, 2016); Mytilus galloprovincialis mussels -digestive gland (Strižak et al, 2014); marine crustaceans (Li et al, 2005)). Such studies will contribute to expansion of knowledge on metal behaviour in fish and on metal-binding biomolecules, thus providing the higher understanding of potential threats coming from metal exposure of the fish and the other aquatic organisms, as well as the basis for development and application of adequate biomarkers of metal exposure/effects.…”