1
|
Rodríguez EM. Endocrine disruption in crustaceans: New findings and perspectives. Mol Cell Endocrinol 2024; 585:112189. [PMID: 38365065 DOI: 10.1016/j.mce.2024.112189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 02/02/2024] [Accepted: 02/12/2024] [Indexed: 02/18/2024]
Abstract
A significant advance has been made, especially during the last two decades, in the knowledge of the effects on crustacean species of pollutants proven to be endocrine disruptors in vertebrates. Such effects have been also interpreted in the light of recent studies on crustacean endocrinology. Year after year, the increased number of reports refer to the effects of endocrine disruptors on several processes hormonally controlled. This review is aimed at summarizing and discussing the effects of several kinds of endocrine disruptors on the hormonal control of reproduction (including gonadal growth, sexual differentiation, and offspring development), molting, and intermediate metabolism of crustaceans. A final discussion about the state of the art, as well as the perspective of this toxicological research line is given.
Collapse
Affiliation(s)
- Enrique M Rodríguez
- Universidad de Buenos Aires. CONICET. Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA). Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental. Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina.
| |
Collapse
|
2
|
Khamis AS, Naser HA, Ali-Mohamed AY. Bioaccumulation of trace metal ions in the blue swimmer crab tissues Portunus pelagicus (Linnaeus, 1758) in Bahrain, Arabian Gulf. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1022. [PMID: 37548913 DOI: 10.1007/s10661-023-11647-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/27/2023] [Indexed: 08/08/2023]
Abstract
The blue swimmer crab, Portunus pelagicus, is an edible abundant crustacean found in many seas around the world, including the Arabian Gulf. In this study, the concentrations of six metal ions in the white and brown meats of P. pelagicus from four sites in Bahrain were determined. P. pelagicus was found to accumulate Zn2+ and Cu2+ higher than other metal ions in the order of Zn2+ > Cu2+ > Cd2+ > Ni2+ > Cr3+, while Pb2+ was not detected. The overall average concentrations of Zn2+, Cu2+, Cr3+, Ni2+, and Cd2+ in white meat were 236.2, 69.5, 0.109, 0.159, and 0.273 mg/kg, while in brown meat, they were 235.4, 199.2, 0.133, 1.25, and 4.87 mg/kg based on dry weight, respectively. Concentrations of Pb2+ and Cd2+ were safe according to Bahrain's and European Commission guidelines. The estimated weekly intake (EWI) values of Zn2+, Cu2+, Pb2+, and Cd2+ via consumption of crab's white meat (edible tissue) were 102.1, 30.1, 0.042, and 0.12 µg/kg/week, respectively, which are far lower than the maximum recommended values established by the FAO/WHO. The hazard quotient (HQ) values of individual trace metal ions and the synergistic effects of total trace metal ion (hazard index) were below 1, indicating that there is no potential health risk on the consumption of crab edible tissues (white meat). However, elevated levels of Cd2+ (0.05-1.73 mg/kg wet weight) in the brown meat (hepatopancreas) were detected. The female P. pelagicus accumulated high levels of Zn2+ and Cu2+ in the white meat, as well as Cu2+ in the brown meat compared to males. Additionally, it was found that Cu2+ and Cd2+ were significantly higher (p < 0.05) in brown meat compared to white meat. Higher concentrations (p < 0.05) of Zn2+, Cu2+, and Cd2+ were observed in crabs collected from sites that have harsher environmental conditions.
Collapse
Affiliation(s)
- Ahmed S Khamis
- Environment and Sustainable Development Program, College of Science, University of Bahrain, Sakhir, Bahrain.
| | - Humood A Naser
- Department of Biology, College of Science, University of Bahrain, Sakhir, Bahrain
| | - Ahmed Y Ali-Mohamed
- Department of Chemistry, College of Science, University of Bahrain, Sakhir, Bahrain
| |
Collapse
|
3
|
Stenton CA, Bolger EL, Michenot M, Dodd JA, Wale MA, Briers RA, Hartl MGJ, Diele K. Effects of pile driving sound playbacks and cadmium co-exposure on the early life stage development of the Norway lobster, Nephrops norvegicus. MARINE POLLUTION BULLETIN 2022; 179:113667. [PMID: 35533617 DOI: 10.1016/j.marpolbul.2022.113667] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 04/10/2022] [Accepted: 04/12/2022] [Indexed: 06/14/2023]
Abstract
There is an urgent need to understand how organisms respond to multiple, potentially interacting drivers in today's world. The effects of the pollutants anthropogenic sound (pile driving sound playbacks) and waterborne cadmium were investigated across multiple levels of biology in larval and juvenile Norway lobster, Nephrops norvegicus under controlled laboratory conditions. The combination of pile driving playbacks (170 dBpk-pk re 1 μPa) and cadmium combined synergistically at concentrations >9.62 μg[Cd] L-1 resulting in increased larval mortality, with sound playbacks otherwise being antagonistic to cadmium toxicity. Exposure to 63.52 μg[Cd] L-1 caused significant delays in larval development, dropping to 6.48 μg[Cd] L-1 in the presence of piling playbacks. Pre-exposure to the combination of piling playbacks and 6.48 μg[Cd] L-1 led to significant differences in the swimming behaviour of the first juvenile stage. Biomarker analysis suggested oxidative stress as the mechanism resultant deleterious effects, with cellular metallothionein (MT) being the predominant protective mechanism.
Collapse
Affiliation(s)
- C A Stenton
- Aquatic Noise Research Group, School of Applied Sciences, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; Centre for Conservation and Restoration Science, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; St Abbs Marine Station, The Harbour, St Abbs, Eyemouth TD14 5PW, UK; Ocean Science Consulting Ltd., Spott Road, Dunbar EH42 1RR, UK.
| | - E L Bolger
- Aquatic Noise Research Group, School of Applied Sciences, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; Centre for Conservation and Restoration Science, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; St Abbs Marine Station, The Harbour, St Abbs, Eyemouth TD14 5PW, UK
| | - M Michenot
- École Nationale des Travaux Publics de L'état, 3 Rue Maurice Audin, 69 120 Vaulx en Velin, France
| | - J A Dodd
- Aquatic Noise Research Group, School of Applied Sciences, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; Centre for Conservation and Restoration Science, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK
| | - M A Wale
- Aquatic Noise Research Group, School of Applied Sciences, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; Centre for Conservation and Restoration Science, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; St Abbs Marine Station, The Harbour, St Abbs, Eyemouth TD14 5PW, UK
| | - R A Briers
- Aquatic Noise Research Group, School of Applied Sciences, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; Centre for Conservation and Restoration Science, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK
| | - M G J Hartl
- Centre for Marine Biodiversity & Biotechnology, Institute of Life and Earth Sciences, School of Energy, Geoscience, Infrastructure & Society, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - K Diele
- Aquatic Noise Research Group, School of Applied Sciences, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; Centre for Conservation and Restoration Science, Edinburgh Napier University, 9 Sighthill Court, Edinburgh EH11 4BN, UK; St Abbs Marine Station, The Harbour, St Abbs, Eyemouth TD14 5PW, UK.
| |
Collapse
|
4
|
Bjerregaard P, Jensen LBE, Pedersen KL. Effect of size on concentrations and cadmium inducibility of metallothionein in the shore crab Carcinus maenas. Comp Biochem Physiol C Toxicol Pharmacol 2021; 249:109146. [PMID: 34293485 DOI: 10.1016/j.cbpc.2021.109146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/06/2021] [Accepted: 07/13/2021] [Indexed: 11/22/2022]
Abstract
Metallothionein (MT) plays an important role in protecting organisms from the adverse effects of Cd, Hg, Zn and Cu. Investigations on mammals show variations in metallothionein concentrations and inducibility with age. This has never been investigated in invertebrates, and we determined the concentrations and inducibility of metallothionein in gills and midgut gland of different size classes of shore crabs from uncontaminated areas. Metallothionein concentrations in gills and midgut gland ranged between 30 and 40 μg g-1 dry weight with no differences among the different size classes. Concentrations of cadmium, copper and zinc in the midgut gland increased with increasing size of the crabs when the concentrations were expressed on a dry weight basis; water content in the midgut gland increased with the size and only the cadmium concentration increased with size when concentrations were expressed on wet weight basis. There was an inverse relationship between metallothionein and both copper and cadmium concentrations. Smaller crabs exposed to 1 mg Cd L-1 accumulated higher concentrations of cadmium in midgut gland and gills than larger ones and metallothionein concentrations in the midgut gland were higher in the smaller crabs. However, the increase in metallothionein concentration per accumulated unit of cadmium showed a linear increase with the size of the crabs. The ratio [Cd]midgut/[Cd]gills decreased with the size of the crabs. The overall conclusion is that baseline metallothionein concentrations do not change with age in shore crabs, but that the inducibility of metallothionein upon cadmium challenge does.
Collapse
Affiliation(s)
- Poul Bjerregaard
- Department of Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark.
| | - Lars Bo Ekhart Jensen
- Department of Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark
| | - Knud Ladegaard Pedersen
- Department of Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark
| |
Collapse
|
5
|
Siddiqui AS, Saher NU. Interferences of trace metals between sediment and Dotillid crab (Ilyoplax frater) from three tidal creeks, Karachi, Pakistan. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-020-04041-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
AbstractIn the Anthropocene era, an immersion of toxic substances, i.e., trace metals, has been enhanced in the marine environment not only due to urban sprawl and industrial development but predominantly owing to incongruous management and lack of sustainable approaches. The coastal region of Pakistan shares a similar obstacle as most of the developing countries confronted. Therefore, this study was designed to investigate concentrations of eight metals (Cu, Fe, Zn, Ni, Co, Pb, Cr, and Cd) in sediment and Dotillid crab, Ilyoplax frater, at three tidal creeks in Karachi, Pakistan. All metals in sediments and crabs were analyzed by atomic absorption spectrometer. The sediment pollution was evaluated by contamination degree (CD) and potential ecological risk index (RI). After depicting the metal pollution in sediments, metal accumulation, and contamination in benthic crab were investigated through total metal concentrations in crabs, accumulation factor (AF), correlation analysis, and regression analysis. The results exhibited substantial differences in the concentrations of Zn, Ni, Pb, Cr, and Cd among the tidal creek sediments. Contamination factors indicated that the Cd and Pb had the highest sharing in sediment pollution, and the tidal creeks classified as moderately contaminated. All metal accumulations in Dotillid crabs showed notable spatial variations, and accumulation factors (AFs) for most of the metals were > 1.0, signifying the strong bioaccumulation of metals in crabs. Particularly, Cu, Co, and Cd levels were considerably greater (two to three times) in Dotillid crabs compared to creek’s sediments, even though they don’t share any relationship between two matrixes. Hydrographical and sedimentological traits also revealed significant interactions with metal levels in sediments and crabs. A substantial association was also noticed in Fe, Ni, and Pb between sediments and crabs. Interestingly, most of the metal AFs showed a notable inverse correlation with the environmental matrix. Exceptionally, a strong positive correlation found between the Pb concentration in crabs and sediments suggested that I. frater probably acts as an indicator of Pb pollution.
Collapse
|
6
|
Kadiene EU, Ouddane B, Gong HY, Kim MS, Lee JS, Pan YJ, Hwang JS, Souissi S. Differential gene expression profile of male and female copepods in response to cadmium exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111048. [PMID: 32758697 DOI: 10.1016/j.ecoenv.2020.111048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
In this study, the whole transcriptome and sex-specific differential gene expression of the copepod Pseudodiaptomus annandalei exposed to cadmium (Cd) were investigated. P. annandalei were exposed to 40 μg/L Cd from the naupliar stage to male and female adults. High-throughput transcriptome sequencing (RNA-seq) was performed with copepod samples using an Illumina Hiseq™ 2000 platform. TransDecoder analysis found 32,625 putative open reading frame contigs. At p-values of <0.001, a total of 4756 differentially expressed genes (DEGs) (2216 up-regulated and 2540 down-regulated genes) were found in male copepods. Whereas a total of 2879 DEGs (2007 up-regulated and 872 down-regulated genes) were found in female copepods. A few selected cellular stress response genes, involved in xenobiotic metabolism, energy metabolism, growth, and development as a result of Cd exposure in the copepods were discussed. The study showed that most of these processes were changed in a sex-specific manner, accounting for the different sensitivities of male and female copepods. Results suggest and reinforce that sex is an important factor to be considered in ecotoxicogenomics.
Collapse
Affiliation(s)
- Esther U Kadiene
- Univ. Lille, CNRS, Univ. Littoral Côte D'Opale, UMR 8187 - LOG - Laboratoire D'Océanologie et de Géosciences, F-59000, Lille, France; Institute of Marine Biology, National Taiwan Ocean University, 20224, Keelung, Taiwan
| | - Baghdad Ouddane
- Université de Lille, Equipe Physico-Chimie de L'Environnement, Laboratoire LASIR UMR CNRS 8516, 59655, Villeneuve D'Ascq Cedex, France
| | - Hong-Yi Gong
- Department of Aquaculture, National Taiwan Ocean University, Keelung, 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Min-Sub Kim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Jae-Seong Lee
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Yen-Ju Pan
- Univ. Lille, CNRS, Univ. Littoral Côte D'Opale, UMR 8187 - LOG - Laboratoire D'Océanologie et de Géosciences, F-59000, Lille, France; Department of Aquaculture, National Taiwan Ocean University, Keelung, 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Jiang-Shiou Hwang
- Institute of Marine Biology, National Taiwan Ocean University, 20224, Keelung, Taiwan; Center of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, 20224, Taiwan.
| | - Sami Souissi
- Univ. Lille, CNRS, Univ. Littoral Côte D'Opale, UMR 8187 - LOG - Laboratoire D'Océanologie et de Géosciences, F-59000, Lille, France.
| |
Collapse
|
7
|
Wiech M, Frantzen S, Duinker A, Rasinger JD, Maage A. Cadmium in brown crab Cancer pagurus. Effects of location, season, cooking and multiple physiological factors and consequences for food safety. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 703:134922. [PMID: 31759709 DOI: 10.1016/j.scitotenv.2019.134922] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/20/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Brown crab Cancer pagurus is appreciated as seafood in several European countries. However, cadmium levels in crabs can be elevated and their consumption may pose a hazard for human health. To assess if cadmium poses a threat to food safety in Norway, crabs were sampled at two different locations along the Norwegian coast: one in the South of Norway and one in the North of Norway. Cadmium levels were determined in different tissues (claw meat, hepatopancreas and inner meat). To highlight specific risk factors for cadmium, the concentration of cadmium was related to different exogenous (location, cooking and season) and physiological (size, sex, moulting stage, gonad maturation stage, condition) factors. The results confirmed previous findings of much higher cadmium levels in brown crab sampled in the North of Norway compared to the South. Cooking of crabs further led to higher concentrations in claw meat. The effect of season on cadmium levels was different in the North and South and no clear patterns could be identified, probably due to a high inter-individual variation in cadmium levels. Size showed a correlation with the total amount of cadmium for crabs in the North indicating an accumulation of cadmium over time; together with a slower growth, this may lead to the higher cadmium levels, observed in the crabs from Northern Norway. The risk connected to cadmium exposure when consuming brown crab mainly depends on the consumption pattern, the parts of the crab consumed and the origin of the crab. Regardless of origin, the consumption of claw meat does not display a consumer health risk. However, the consumption of meals consisting of inner meat only and inner meat of brown crab from Northern Norway may pose a health risk.
Collapse
Affiliation(s)
- Martin Wiech
- Institute of Marine Research, P.O. Box 1870, Nordnes, NO-5817 Bergen, Norway; University of Bergen, P.O. Box 7800, NO-5020 Bergen, Norway.
| | - Sylvia Frantzen
- Institute of Marine Research, P.O. Box 1870, Nordnes, NO-5817 Bergen, Norway.
| | - Arne Duinker
- Institute of Marine Research, P.O. Box 1870, Nordnes, NO-5817 Bergen, Norway.
| | | | - Amund Maage
- Institute of Marine Research, P.O. Box 1870, Nordnes, NO-5817 Bergen, Norway; University of Bergen, P.O. Box 7800, NO-5020 Bergen, Norway.
| |
Collapse
|
8
|
Medina MF, Taboada LN, González ME, Díaz MÁ, Gelatti FJ, Torres M, Romero CM. Cadmium-calcium interference in the Rhinella arenarum oviduct. Toxicol Mech Methods 2019; 29:693-701. [PMID: 31364914 DOI: 10.1080/15376516.2019.1650147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Given that the cadmium (Cd) toxicity could be due to its interference with the calcium (Ca) homeostasis, the aim of this work was to study the effect of Cd over the presence, distribution and volume density (Vv) of Ca and Ca-ATPase in the secretory cells of the pars preconvoluta (PPC) and the pars convoluta (pc) in Rhinella arenarum. The severe effect of the xenobiotic (CdCl2 2.5 mg/kg) in sexually matured females was evaluated. Co-localization, as well as a marked reduction of Ca and Ca-ATPase, was observed in treated animals, in the areas analyzed, compared to control. Low calcium deposits were found in the secreting granules (SG) of the epithelial (ESC) and glandular secretory cells (GSC), while an increase in their cytoplasm and intracellular space was observed. The Ca-ATPase in treated and control animals was detected at the SG and the plasmatic membrane of the ESC and GSC. In relation to the Vv estimates, a substantial reduction of Ca deposits and Ca-ATPase activity was observed in the treated group, with respect to the control. Both amounts of Vv of Ca and Ca-ATPase activity were higher in PPC than in pc, and, higher in ESC than in GSC. These results were associated with the Cd concentration in the oviductal PC, determining that it is a bioaccumulator organ. Thus, this work demonstrated that the Cd interacted with Ca-ATPase, leading to an increase of cytosolic Ca, which is responsible for the possible disruptions in cellular metabolism.
Collapse
Affiliation(s)
| | | | | | - Miguel Ángel Díaz
- Facultad de Ciencias de Exactas y Tecnología, Universidad Nacional de Tucumán , Tucumán , Argentina
| | | | - Mabel Torres
- Facultad Regional Tucumán, Universidad Tecnológica Nacional , Tucumán , Argentina
| | - Cintia Mariana Romero
- Facultad de Bioquímica, Universidad Nacional de Tucumán , Tucumán , Argentina.,Planta Piloto de Procesos Industriales y Microbiológicos, PROIMI-CONICET , Tucumán , Argentina
| |
Collapse
|
9
|
Wang J, Lv Z, Lei Z, Chen Z, Lv B, Yang H, Wang Z, Song Q. Expression and functional analysis of cytochrome P450 genes in the wolf spider Pardosa pseudoannulata under cadmium stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:19-25. [PMID: 30669070 DOI: 10.1016/j.ecoenv.2019.01.034] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 12/13/2018] [Accepted: 01/09/2019] [Indexed: 06/09/2023]
Abstract
Cytochrome P450 enzymes (CYPs), encoded by Halloween genes, mediate the biosynthesis of molting hormone, ecdysteroids, in arthropods. In this report, the effect of heavy metal cadmium (Cd) stress on the expression of cytochrome P450 genes in the wolf spider Pardosa pseudoannulata was analyzed. The results showed the expression levels of genes encoding for Cd transporters including ABC transporters, zinc transporters, calcium channel proteins and calcium binding proteins were inhibited or induced by Cd stress. In addition, the increase in metallothionein (MT) content and glutathione peroxidase (GPX) activity and decrease in total acetylcholine esterase (AChE) activity were also detected. Apparently, these detoxification methods did not completely protect the spider from the cytotoxicity of Cd stress. Increased mortality of P. pseudoannulata was observed when they were under Cd tress. In total 569 CYP genes belonging to 62 CYP subfamilies were obtained from P. pseudoannulata RNA-seq databases. BlaxtX analysis showed that 150, 161, 11, and 40 CYP genes were similar to the genes dib, phm, sad and shd, respectively, which are thought to catalyze the biosynthesis of ecdysteroids. Gene expression analysis suggested that 25 dib encoding genes, 27 phm encoding genes, 2 sad encoding genes, and 6 shd encoding genes were differentially expressed in TS2 vs. S2 comparison (Cd-treated 2nd instar spider vs. 2nd instar spider), respectively. There were 70 dib, 70 phm and 19 shd encoding genes either upregulated or downregulated, while 3 sad encoding genes were upregulated in TS5 vs. S5 (Cd-treated 5nd instar spider vs. 5nd instar spider). Genes related to heme binding and essential for activating the CYPs were also differentially expressed. Expression levels of cuticle related genes were significant differentially expressed, implying the changes in activities of chitin synthases and chitinase. Therefore we assume that unsuccessful molting process may occur on P. pseudoannulata due to influenced ecdysteroids levels, thus increasing mortality of spider.
Collapse
Affiliation(s)
- Juan Wang
- College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China; College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, Hunan 410128, China
| | - Zhiyue Lv
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080 China
| | - Ziyan Lei
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, Hunan 410128, China
| | - Zhaoyang Chen
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, Hunan 410128, China
| | - Bo Lv
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, Hunan 410128, China
| | - Huilin Yang
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, Hunan 410128, China
| | - Zhi Wang
- College of Life Sciences, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Qisheng Song
- Division of Plant Sciences, University of Missouri, Columbia, MO 65211, USA
| |
Collapse
|
10
|
Wang J, Wei B, Peng Y, Huang T, Yang H, Peng X, Xie C, Xu X, Sun Z, Wang Z, Lv Z, Song Q. Transcriptome analysis reveals the molecular response to cadmium toxicity in P. pseudoannulata. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:34294-34305. [PMID: 30291617 DOI: 10.1007/s11356-018-3269-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/17/2018] [Indexed: 06/08/2023]
Abstract
Cadmium (Cd) can be transferred and accumulated in spiders, posing a survival risk to them. To analyze potential biological damage caused by Cd accumulation and relevant detoxification strategies employed by spiders in response to Cd exposure, we conducted transcriptome analysis of the 5th instar spider P. pseudoannulata, a common spider species playing a vital role in natural pest control in agricultural fields of southern China. We obtained 92,778 unigenes with an average length of 1104 bp and identified 302, 655, and 424 differentially expressed genes (DEGs) in the spiders fed with Cd-containing fruit flies for 2, 5, and 8 days, respectively. Results showed that the body mass of Cd-containing P. pseudoannulata were reduced when compared with controls, presumably due to delayed maturation of tissues and organs. Meanwhile, functional analysis of DEGs indicated that Cd may have a negative effect on neural signal transduction and molt cycle of the spider. For defense strategies, detoxification enzymes like glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD), and P450, and typical proteins like heat shock protein and metallothionein were all differentially expressed in response to Cd stress. Besides, innate immune responses like toll-like receptor signaling pathways were also upregulated. Multiple critical Cd-responsive genes involved in biological damage, detoxification, and immune response were identified, providing referable foundation for further research on Cd toxicity to P. pseudoannulata.
Collapse
Affiliation(s)
- Juan Wang
- College of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, 410128, Hunan, China
| | - Baoyang Wei
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, 410128, Hunan, China
| | - Yuande Peng
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Ting Huang
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, 410128, Hunan, China
| | - Huilin Yang
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, 410128, Hunan, China
| | - Xianjin Peng
- College of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Chunliang Xie
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Xiang Xu
- College of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - Zhiying Sun
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, 410128, Hunan, China
| | - Zhi Wang
- College of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China.
- College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha, 410128, Hunan, China.
| | - Zhiyue Lv
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Qisheng Song
- Division of Plant Sciences, University of Missouri, Columbia, MO, 65211, USA
| |
Collapse
|
11
|
Annabi A, Bardelli R, Vizzini S, Mancinelli G. Baseline assessment of heavy metals content and trophic position of the invasive blue swimming crab Portunus segnis (Forskål, 1775) in the Gulf of Gabès (Tunisia). MARINE POLLUTION BULLETIN 2018; 136:454-463. [PMID: 30509829 DOI: 10.1016/j.marpolbul.2018.09.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 09/18/2018] [Indexed: 06/09/2023]
Abstract
This study provides a baseline assessment of cadmium, copper, iron, manganese, lead, and zinc concentrations in muscles, gills, and exoskeleton of the Lessepsian blue swimming crab Portunus segnis captured in the Gulf of Gabès (Southern Mediterranean Sea, Tunisia) in November 2015. Furthermore, the species' trophic position is estimated using CN stable isotope analysis. The exoskeleton showed the lowest metal contents; in soft tissues, the essential Cu, Fe, and Zn and the non-essential Cd, Mn, and Pb showed the highest and lowest concentrations, respectively. The crab was characterized by a trophic position of 3.32, confirming its carnivorous trophic habits. Compared with literature data on invertebrate and fish species from the same area, Cd and Pb resulted remarkably low in the crab's soft tissues, while a food web-scale dilution effect was indicated. The need of a comprehensive assessment of the ecological impact of Portunus segnis in invaded Mediterranean waters is discussed.
Collapse
Affiliation(s)
- Ali Annabi
- Ecologie de la faune terrestre UR17ES44, Département des Sciences de la Vie, Faculté des Sciences de Gabès, Université de Gabès, Tunisie
| | - Roberta Bardelli
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy
| | - Salvatrice Vizzini
- Department of Earth and Marine Sciences, University of Palermo, 90133 Palermo, Italy; CoNISMa, 00196 Roma, Italy
| | - Giorgio Mancinelli
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy; CNR - ISMAR, 71010 Lesina, FG, Italy; CoNISMa, 00196 Roma, Italy.
| |
Collapse
|
12
|
Bordon IC, Emerenciano AK, Melo JRC, Silva JRMCD, Favaro DIT, Gusso-Choueri PK, Campos BGD, Abessa DMDS. Implications on the Pb bioaccumulation and metallothionein levels due to dietary and waterborne exposures: The Callinectes danae case. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 162:415-422. [PMID: 30015187 DOI: 10.1016/j.ecoenv.2018.07.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 06/11/2018] [Accepted: 07/03/2018] [Indexed: 06/08/2023]
Abstract
This study aimed to assess the bioaccumulation of Pb and induction of metallothionein-like proteins (MT) in Callinectes danae through single and combined dietary and waterborne exposures. Male C. danae individuals were collected in the south area of the Cananéia-Iguape-Peruíbe Protected Area (APA-CIP), in São Paulo State, Brazil. After an acclimatization period, exposure assays were performed during 7 and 14 days, at two Pb concentrations (0.5 e 2.0 µg/g) in 4 treatments: 1) control; 2) contaminated water only; 3) contaminated food only; 4) contaminated water and food. The results indicate that C. danae is highly tolerant to Pb exposure at the evaluated concentrations. In gills, Pb bioaccumulation is more dependent of water efflux and time of exposure (higher Pb values). However, pathways act simultaneously in the induction of MT expression in this tissue. The decreases in Pb accumulation in the combined treatments and MT increases after 14 days in gills suggests that these proteins play a detoxification function in the presence of Pb. In hepatopancreas, depending on the predominance of a certain pathway or combined pathways, accumulation occured at different times. For muscle tissue, bioaccumulation was observed due to contaminated water exposure, but not dietary exposure, probably because Pb concentrations were low.
Collapse
Affiliation(s)
- Isabella C Bordon
- UNESP - Univ Estadual Paulista, Campus do Litoral Paulista, Núcleo de Estudos em Poluição e Ecotoxicologia Aquática (NEPEA), Praça Infante Dom Henrique s/n°, Parque Bitaru, CEP 11330-900, São Vicente, SP, Brazil.
| | - Andrews Krupinski Emerenciano
- USP - Univ. de São Paulo, Instituto de Ciências Biomédicas (ICB)- Departamento de Biologia Celular e do Desenvolvimento, Avenida Professor Lineu Prestes, 1524 - Cidade Universitária, CEP 05508-900, São Paulo, SP, Brazil
| | - Julia Reali Costa Melo
- USP - Univ. de São Paulo, Instituto de Ciências Biomédicas (ICB)- Departamento de Biologia Celular e do Desenvolvimento, Avenida Professor Lineu Prestes, 1524 - Cidade Universitária, CEP 05508-900, São Paulo, SP, Brazil
| | - José Roberto Machado Cunha da Silva
- USP - Univ. de São Paulo, Instituto de Ciências Biomédicas (ICB)- Departamento de Biologia Celular e do Desenvolvimento, Avenida Professor Lineu Prestes, 1524 - Cidade Universitária, CEP 05508-900, São Paulo, SP, Brazil
| | - Deborah Inês Teixeira Favaro
- IPEN - Instituto de Pesquisas Energéticas e Nucleares, Centro do Reator de Pesquisa (CRPq), Avenida. Professor Lineu Prestes 2242 - Cidade Universitária, CEP: 05508-000, São Paulo, SP, Brazil
| | - Paloma Kachel Gusso-Choueri
- UNESP - Univ Estadual Paulista, Campus do Litoral Paulista, Núcleo de Estudos em Poluição e Ecotoxicologia Aquática (NEPEA), Praça Infante Dom Henrique s/n°, Parque Bitaru, CEP 11330-900, São Vicente, SP, Brazil
| | - Bruno Galvão de Campos
- UNESP - Univ Estadual Paulista, Campus do Litoral Paulista, Núcleo de Estudos em Poluição e Ecotoxicologia Aquática (NEPEA), Praça Infante Dom Henrique s/n°, Parque Bitaru, CEP 11330-900, São Vicente, SP, Brazil
| | - Denis Moledo de Souza Abessa
- UNESP - Univ Estadual Paulista, Campus do Litoral Paulista, Núcleo de Estudos em Poluição e Ecotoxicologia Aquática (NEPEA), Praça Infante Dom Henrique s/n°, Parque Bitaru, CEP 11330-900, São Vicente, SP, Brazil
| |
Collapse
|
13
|
Jędruch A, Bełdowska M, Kwasigroch U, Normant-Saremba M, Saniewska D. Mercury fractionation in marine macrofauna using thermodesorption technique: Method and its application. Talanta 2018; 189:534-542. [PMID: 30086956 DOI: 10.1016/j.talanta.2018.07.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 11/28/2022]
Abstract
Mercury (Hg) is one of the most dangerous elements, and its toxicity and ability to accumulate in organisms depend on its chemical form. There are numerous methods of Hg speciation analysis, out of which the least expensive and the least time-consuming one is thermodesorption. The method has been successfully used for the analysis of abiotic samples - soils and sediments. The aim of this study was to verify whether the simplified thermodesorption method can be used in the analysis of the tissues of animal organisms from different trophic levels. Hg fractionation analyses were performed on a DMA-80 analyser (Milestone, Italy). The results presented in this paper are the first published data on Hg fractionation by thermodesorption method in animal tissues. The study showed that the 5-step thermodesorption method can be applied to various types of environmental matrices, which makes it universal. This method is of great importance in terms of estimating the Hg uptake and transfer in the trophic chain, and also enables the assessment of global Hg circulation in the environment. The presented method does not require previous digestion of samples or the use of expensive reagents. It can also be used for the preliminary selection of samples for MeHg analysis. The results obtained by this 5-step fractionation could be comparable with different research, conducted using other Hg analysers.
Collapse
Affiliation(s)
- Agnieszka Jędruch
- Institute of Oceanography, University of Gdansk, Piłsudskiego 46, 81-378 Gdynia, Poland.
| | - Magdalena Bełdowska
- Institute of Oceanography, University of Gdansk, Piłsudskiego 46, 81-378 Gdynia, Poland
| | - Urszula Kwasigroch
- Institute of Oceanography, University of Gdansk, Piłsudskiego 46, 81-378 Gdynia, Poland
| | | | - Dominika Saniewska
- Institute of Oceanography, University of Gdansk, Piłsudskiego 46, 81-378 Gdynia, Poland
| |
Collapse
|
14
|
Mancinelli G, Papadia P, Ludovisi A, Migoni D, Bardelli R, Fanizzi FP, Vizzini S. Beyond the mean: A comparison of trace- and macroelement correlation profiles of two lacustrine populations of the crayfish Procambarus clarkii. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 624:1455-1466. [PMID: 29929256 DOI: 10.1016/j.scitotenv.2017.12.106] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 12/08/2017] [Accepted: 12/10/2017] [Indexed: 06/08/2023]
Abstract
In invertebrate biomonitors of chemical pollution, emphasis has been generally given to mean accumulation patterns and how they reflect varying environmental levels of contamination. Intra-population variability, and how it relates with individual phenotypic traits, has received less attention. Here, a set of analytes including trace elements (B, Ba, Cd, Cr, Cu, Fe, Li, Mn, Ni, Pb, Sr, V, and Zn), macroelements (C, Ca, K, Mg, N, Na), and carbon and nitrogen stable isotopes (δ13C and δ15N) was measured in two populations of the crayfish Procambarus clarkii from Lake Trasimeno and Lake Bolsena (Central Italy). The influence of location, sex, body size, and condition factor was assessed; in addition, the analyte correlation profiles of the two populations were compared to verify their congruence. In general, significant inter-lake differences were observed in the concentration of both trace- and macroelements in crayfish tissues, generally mirroring the local chemistry of water and of benthic non-living matrices (sediment and plant detritus). Crayfish CN isotopic signatures excluded the occurrence of inter-lake variations in their omnivorous trophic habits. Correlation profiles varied considerably between the two populations in the nature and strength of bivariate relationships. However, Mantel tests and procrustean analyses indicated a general, significant congruence; C, N, and, to a lesser extent K, Li, Ni, Pb, and δ13C showed the highest procrustean residuals, suggesting that their associations with other analytes may be partially influenced by inter-population differences in growing phases. Our study indicates that the local geochemistry of the lacustrine environment influences the elemental fingerprint of Procambarus clarkii; the considerable inter-individual variability in the concentration of analytes, however, does not significantly reflect on their association, thus corroborating its effectiveness as an indicator species.
Collapse
Affiliation(s)
- Giorgio Mancinelli
- CoNISMa, Consorzio Nazionale Interuniversitario per le Scienze del Mare, 00196 Roma, Italy; Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy.
| | - Paride Papadia
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy; CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici, 70121 Bari, Italy.
| | - Alessandro Ludovisi
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, 06123 Perugia, Italy
| | - Danilo Migoni
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy; CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici, 70121 Bari, Italy
| | - Roberta Bardelli
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy
| | - Francesco Paolo Fanizzi
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy; CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici, 70121 Bari, Italy
| | - Salvatrice Vizzini
- CoNISMa, Consorzio Nazionale Interuniversitario per le Scienze del Mare, 00196 Roma, Italy; Department of Earth and Marine Sciences, University of Palermo, 90123 Palermo, Italy
| |
Collapse
|
15
|
Knutsen H, Wiech M, Duinker A, Maage A. Cadmium in the shore crab Carcinus maenas along the Norwegian coast: geographical and seasonal variation and correlation to physiological parameters. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:253. [PMID: 29589125 PMCID: PMC5871639 DOI: 10.1007/s10661-018-6606-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 03/07/2018] [Indexed: 06/08/2023]
Abstract
Previously, high concentrations of cadmium have been found in the hepatopancreas of the edible or brown crab (Cancer pagurus) sampled from positions north of about 67° N, compared to regions further south along the Norwegian coast, with no clear understanding why. In order to study a similar organism in the same ecosystem, the present study analyzed 210 shore crabs (Carcinus maenas) from four different locations along the Norwegian coast, two in the North and two in the South. The physiological variables size, sex, molting stage, hepatosomatic index, carapace color, and gonad maturation were registered, in attempt to explain the high inter-individual variation in cadmium levels in hepatopancreas. In contrast to the brown crabs, the shore crabs showed no clear geographical differences in cadmium concentrations. This indicates physiological differences between the two crab species. No clear and consistent correlations were found between cadmium levels and physiological parameters, except for sex, where cadmium concentration in hepatopancreas was twice as high in males compared to females. The cadmium levels also varied with season, with approximately 40 and 60% lower cadmium concentration in April than August for male and female shore crabs, respectively. None of the analyzed cadmium concentrations in muscle meat from claws exceeded EUs food safety limit, and low cadmium levels in soup prepared from shore crabs clearly indicated that this dish is not problematic regarding food safety.
Collapse
Affiliation(s)
- Heidi Knutsen
- National Institute of Nutrition and Seafood Research, 5002, Bergen, Norway.
| | - Martin Wiech
- National Institute of Nutrition and Seafood Research, 5002, Bergen, Norway
| | - Arne Duinker
- National Institute of Nutrition and Seafood Research, 5002, Bergen, Norway
| | - Amund Maage
- National Institute of Nutrition and Seafood Research, 5002, Bergen, Norway
- University of Bergen, Allegt. 41, 2020, Bergen, Norway
| |
Collapse
|
16
|
Picone M, Bergamin M, Delaney E, Ghirardini AV, Kusk KO. Testing lagoonal sediments with early life stages of the copepod Acartia tonsa (Dana): An approach to assess sediment toxicity in the Venice Lagoon. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 147:217-227. [PMID: 28843531 DOI: 10.1016/j.ecoenv.2017.08.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 08/14/2017] [Accepted: 08/17/2017] [Indexed: 06/07/2023]
Abstract
The early-life stages of development of the calanoid copepod Acartia tonsa from egg to copepodite I is proposed as an endpoint for assessing sediment toxicity by exposing newly released eggs directly onto the sediment-water interface. A preliminary study of 5 sediment samples collected in the lagoon of Venice highlighted that the larval development rate (LDR) and the early-life stages (ELS) mortality endpoints with A. tonsa are more sensitive than the standard amphipod mortality test; moreover LDR resulted in a more reliable endpoint than ELS mortality, due to the interference of the sediment with the recovery of unhatched eggs and dead larvae. The LDR data collected in a definitive study of 48 sediment samples from the Venice Lagoon has been analysed together with the preliminary data to evaluate the statistical performances of the bioassay (among replicate variance and minimum significant difference between samples and control) and to investigate the possible correlation with sediment chemistry and physical properties. The results showed that statistical performances of the LDR test with A. tonsa correspond with the outcomes of other tests applied to the sediment-water interface (Strongylocentrotus purpuratus embryotoxicity test), sediments (Neanthes arenaceodentata survival and growth test) and porewater (S. purpuratus); the LDR endpoint did, however, show a slightly higher variance as compared with other tests used in the Lagoon of Venice, such as 10-d amphipod lethality test and larval development with sea urchin and bivalves embryos. Sediment toxicity data highlighted the high sensitivity and the clear ability of the larval development to discriminate among sediments characterized by different levels of contamination. The data of the definitive study evidenced that inhibition of the larval development was not affected by grain-size and the organic carbon content of the sediment; in contrast, a strong correlation between inhibition of the larval development and the sediment concentrations of some metals (Cu, Hg, Pb, Zn), acid-volatile sulphides (AVS), polychlorinated biphenyls (PCBs) and polynuclear aromatic hydrocarbons (PAHs) was found. No correlation was found with DDTs, hexachlorobenzene and organotin compounds.
Collapse
Affiliation(s)
- Marco Picone
- Thetis S.p.A., Castello 2737/f, I-30122 Venice, Italy; Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Campus Scientifico via Torino 155, Mestre, I-30170 Venice, Italy.
| | | | | | - Annamaria Volpi Ghirardini
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Campus Scientifico via Torino 155, Mestre, I-30170 Venice, Italy
| | - Kresten Ole Kusk
- Department of Environmental Engineering, Technical University of Denmark, Miljoevej, Building 113, 2800 Kgs. Lyngby, Denmark
| |
Collapse
|
17
|
Nascimento FJA, Svendsen C, Bradshaw C. Joint Toxicity of Cadmium and Ionizing Radiation on Zooplankton Carbon Incorporation, Growth and Mobility. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:1527-1535. [PMID: 26694520 DOI: 10.1021/acs.est.5b04684] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The risk of exposure to radioactive elements is seldom assessed considering mixture toxicity, potentially over- or underestimating biological and ecological effects on ecosystems. This study investigated how three end points, carbon transfer between phytoplankton and Daphnia magna, D. magna mobility and growth, responded to exposure to γ-radiation in combination with the heavy metal cadmium (Cd), using the MIXTOX approach. Observed effects were compared with mixture effects predicted by concentration addition (CA) and independent action (IA) models and with deviations for synergistic/antagonistic (S/A), dose-level (DL), and dose-ratio (DR) dependency interactions. Several patterns of response were observed depending on the end point tested. DL-dependent deviation from the IA model was observed for carbon incorporation with antagonism switching to synergism at higher doses, while the CA model indicated synergism, mainly driven by effects at high doses of γ-radiation. CA detected antagonism regarding acute immobilization, while IA predicted DR-dependency. Both CA and IA also identified antagonism for daphnid growth. In general, effects of combinations of γ-radiation and Cd seem to be antagonistic at lower doses, but synergistic at the higher range of the doses tested. Our results highlight the importance of investigating the effects of exposure to γ-radiation in a multistressor context.
Collapse
Affiliation(s)
- Francisco J A Nascimento
- Department of Ecology, Environment and Plant Sciences, Stockholm University , Stockholm 106 91, Sweden
| | - Claus Svendsen
- Centre for Ecology and Hydrology , Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB, United Kingdom
| | - Clare Bradshaw
- Department of Ecology, Environment and Plant Sciences, Stockholm University , Stockholm 106 91, Sweden
| |
Collapse
|
18
|
Luo J, Pei S, Jing W, Zou E, Wang L. Cadmium inhibits molting of the freshwater crab Sinopotamon henanense by reducing the hemolymph ecdysteroid content and the activities of chitinase and N-acetyl-β-glucosaminidase in the epidermis. Comp Biochem Physiol C Toxicol Pharmacol 2015; 169:1-6. [PMID: 25463647 DOI: 10.1016/j.cbpc.2014.10.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/07/2014] [Accepted: 10/09/2014] [Indexed: 11/21/2022]
Abstract
Molting is an essential process during the growth of crustaceans, which is coordinated by ecdysteroids secreted by the Y-organ, molting inhibiting hormone secreted by the X-organ sinus-gland complex, as well as chitinase and N-acetyl-β-glucosaminidase synthesized by the epidermis. Cadmium is one of the toxic metals in the aquatic environment. However, the endocrine effects of cadmium on the molting of freshwater crabs and the underlying mechanisms are unknown. To investigate these, freshwater crabs (Sinopotamon henanense) were acutely exposed to 0, 7.25, 14.5 and 29 mg/l Cd for 3, 4, 5 days or in some experiments for 4 days after eyestalk-ablation. The concentration of hemolymph ecdysone and the activities of the molting enzymes chitinase and NAG were measured. Histological changes in the epidermal tissues were documented. Our results showed that eyestalk ablation increased the ecdysteroid content as well as the activities of chitinase and NAG, which were inhibited by cadmium in a concentration-dependent manner; histological examinations demonstrated that eyestalk ablation produced storage particles in the epidermal tissues, which was also reduced by cadmium in a concentration-dependent manner. Our data suggest that cadmium disrupts endocrine function through inhibiting the secretion of ecdysteroids by the Y-organ and altering with the regulation of chitinase and NAG activity in the epidermis. This work provides new insights into the mechanisms underlying the molting inhibition effect of cadmium on the crabs.
Collapse
Affiliation(s)
- Jixian Luo
- School of Life Science, Shanxi University, Taiyuan 030006, People's Republic of China
| | - Sihui Pei
- School of Life Science, Shanxi University, Taiyuan 030006, People's Republic of China
| | - Weixin Jing
- School of Life Science, Shanxi University, Taiyuan 030006, People's Republic of China
| | - Enmin Zou
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA
| | - Lan Wang
- School of Life Science, Shanxi University, Taiyuan 030006, People's Republic of China.
| |
Collapse
|
19
|
Cresswell T, Simpson SL, Mazumder D, Callaghan PD, Nguyen AP. Bioaccumulation kinetics and organ distribution of cadmium and zinc in the freshwater decapod crustacean Macrobrachium australiense. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:1182-1189. [PMID: 25537180 DOI: 10.1021/es505254w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study used the radioisotopes (109)Cd and (65)Zn to explore the uptake, retention and organ distribution of these nonessential and essential metals from solution by the freshwater decapod crustacean Macrobrachium australiense. Three treatments consisting of cadmium alone, zinc alone, and a mixture of cadmium and zinc were used to determine the differences in uptake and efflux rates of each metal individually and in the metal mixture over a three-week period, followed by depuration for 2 weeks in metal-free water using live-animal gamma-spectrometry. Following exposure, prawns were cryosectioned and the spatial distribution of radionuclides visualized using autoradiography. Metal uptake and efflux rates were the same in the individual and mixed-metal exposures, and efflux rates were close to zero. The majority of cadmium uptake was localized within the gills and hepatopancreas, while zinc accumulated in the antennal gland at concentrations orders of magnitude greater than in other organs. This suggested that M. australiense may process zinc much faster than cadmium by internally transporting the accumulated zinc to the antennal gland. The combination of uptake studies and autoradiography greatly increases our understanding of how metal transport kinetics and internal processing may influence the toxicity of essential and nonessential metals in the environment.
Collapse
|
20
|
Ortega P, Custódio MR, Zanotto FP. Characterization of cadmium plasma membrane transport in gills of a mangrove crab Ucides cordatus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2014; 157:21-29. [PMID: 25456216 DOI: 10.1016/j.aquatox.2014.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/16/2014] [Accepted: 09/19/2014] [Indexed: 06/04/2023]
Abstract
Membrane pathway for intracellular cadmium (Cd(2+)) accumulation is not fully elucidated in many organisms and has not been studied in crab gill cells. To characterize membrane Cd(2+) transport of anterior and posterior gill cells of Ucides cordatus, a hypo-hyper-regulating crab, a change in intracellular Cd(2+) concentration under various experimental conditions was examined by using FluoZin, a fluorescent probe. The membrane Cd(2+) transport was estimated by the augmentation of FluoZin fluorescence induced by extracellular application of CdCl2 and different inhibitors. Addition of extracellular calcium (Ca(2+)) to the cells affected little the fluorescence of FluoZin, confirming that Cd(2+) was the main ion increasing intracellular fluorescence. Ca(2+) channels blockers (nimodipine and verapamil) decreased Cd(2+) influx as well as vanadate, a Ca(2+)-ATPase blocker. Chelating intracellular Ca(2+) (BAPTA) decreased Cd(2+) influx in gill cells, while increasing intracellular Ca(2+) (caffeine) augmented Cd influx. Cd(2+) and ATP added at different temporal conditions were not effective at increasing intracellular Cd(2+) accumulation. Ouabain (Na(+)/K(+)-ATPase inhibitor) increased Cd(2+) influx probably through a change in intracellular Na and/or a change in cell membrane potential. Routes of Cd(2+) influx, a non-essential metal, through the gill cell plasma membrane of crabs are suggested.
Collapse
Affiliation(s)
- P Ortega
- Instituto de Biociências, Departamento de Fisiologia, Universidade de São Paulo, Rua do Matão, Travessa 14, #101, São Paulo 05508-900, SP, Brazil
| | - M R Custódio
- Instituto de Biociências, Departamento de Fisiologia, Universidade de São Paulo, Rua do Matão, Travessa 14, #101, São Paulo 05508-900, SP, Brazil
| | - F P Zanotto
- Instituto de Biociências, Departamento de Fisiologia, Universidade de São Paulo, Rua do Matão, Travessa 14, #101, São Paulo 05508-900, SP, Brazil; Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, Rua Três de Maio 100, São Paulo 04044-020, Brazil.
| |
Collapse
|
21
|
The specific response of gypsy moth A1 neurosecretory neurons to different environmental stressors. Biologia (Bratisl) 2014. [DOI: 10.2478/s11756-014-0446-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
22
|
Cresswell T, Smith REW, Simpson SL. Challenges in understanding the sources of bioaccumulated metals in biota inhabiting turbid river systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:1960-1970. [PMID: 24014223 DOI: 10.1007/s11356-013-2086-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 08/21/2013] [Indexed: 06/02/2023]
Abstract
Bioaccumulation of As, Cd, Cu, Pb and Zn by Macrobrachium prawns was observed to occur in the Strickland River downstream of a gold mine at Porgera, Papua New Guinea. This was despite the total metal concentrations of waters and sediments indicating no difference from reference sites within tributaries. To provide information on potential sources and bioavailability of metals to prawns, an extensive range of analyses were made on waters, suspended solids, deposited sediments and plant materials within the river system. Dissolved metal concentrations were mostly sub-micrograms per liter and no major differences existed in concentrations or speciation between sites within the Strickland River or its tributaries. Similarly, no differences were detected between sites for total or dilute acid-extractable metal concentrations in bed sediments and plant materials, which may be ingested by the prawns. However, the rivers in this region are highly turbid and the dilute acid-extractable cadmium and zinc concentrations in suspended solids were greater at sites in the Strickland River than at sites in tributaries. The results indicated that mine-derived inputs increased the proportion of these forms of metals or metalloids in the Strickland River. These less strongly bound metals and metalloids would be more bioavailable to the prawns via the dietary pathway. The results highlighted many of the difficulties in using routine monitoring data without information on metal speciation to describe metal uptake and predict potential effects when concentrations are low and similar to background. The study indicated that the monitoring of contaminant concentrations in organisms that integrate the exposure from multiple exposure routes and durations may often be more effective for detecting impacts than intermittent monitoring of contaminants in waters and sediments.
Collapse
Affiliation(s)
- Tom Cresswell
- Centre for Environmental Contaminants Research, CSIRO Land and Water, New Illawarra Rd, Lucas Heights, NSW, 2234, Australia.
- School of Applied Sciences, RMIT University, Plenty Road, Bundoora, VIC, 3083, Australia.
- Institute for Environmental Research, ANSTO, Locked Bag 2001, Kirrawee, DC NSW, 2232, Australia.
| | - Ross E W Smith
- Hydrobiology, 27/43 Lang Parade, Auchenflower, QLD, 4066, Australia
| | - Stuart L Simpson
- Centre for Environmental Contaminants Research, CSIRO Land and Water, New Illawarra Rd, Lucas Heights, NSW, 2234, Australia
| |
Collapse
|
23
|
Chu X, Lu W, Zhang Y, Guo X, Sun R, Xu B. Cloning, expression patterns, and preliminary characterization of AccCPR24, a novel RR-1 type cuticle protein gene from Apis cerana cerana. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2013; 84:130-144. [PMID: 24115354 DOI: 10.1002/arch.21132] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Cuticular proteins (CPs) are key components of insect cuticle, a structure that plays a pivotal role in insect development and defense. In this study, we cloned the full-length cDNA of a CP gene from Apis cerana cerana (AccCPR24). An amino acid sequence alignment indicated that AccCPR24 contains the conserved Rebers and Riddiford consensus sequence and shares high similarity with the genes from other hymenopteran insects. We then isolated the genomic DNA and found that the first intron, which is present in other CP genes, is absent in AccCPR24. Real-time quantitative polymerase chain reaction (qPCR) analysis revealed that AccCPR24 is highly expressed in the late pupal stage and midgut. Expression was inhibited by an exogenous ecdysteroid in vitro but was enhanced by this hormone in vivo; environmental stressors, such as heavy metals and pesticides, also influenced gene expression. In addition, a disc diffusion assay showed that AccCPR24 enhanced the ability of bacterial cells to resist multiple stresses. We infer from our results that AccCPR24 acts in honeybee development and in protecting these insects from abiotic stresses.
Collapse
Affiliation(s)
- Xiaoqian Chu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, People's Republic of China
| | | | | | | | | | | |
Collapse
|
24
|
Dziubinska H, Filek M, Krol E, Trebacz K. Cadmium and selenium modulate slow vacuolar channels in rape (Brassica napus) vacuoles. JOURNAL OF PLANT PHYSIOLOGY 2010; 167:1566-70. [PMID: 20705360 DOI: 10.1016/j.jplph.2010.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Revised: 05/11/2010] [Accepted: 06/02/2010] [Indexed: 05/23/2023]
Abstract
Currents flowing through slow vacuolar SV channels of rape (Brassica napus) growing on media supplemented with Cd²+ (400 μM), and/or SeO₄(²⁻) (2μM) were examined. The aim of the study was to investigate the role of Cd²+ in modulation of SV channel activity and to determine whether Se reverses the effect of cadmium. Vacuoles were isolated using a quick surgical method to avoid application of any cell wall-degrading enzymes. Vacuoles of rape exhibited typical SV channel activity with slow activation at positive potentials and strong rectification into the vacuolar lumen. Single-channel conductance in cytoplasm-side-out tonoplast patches ranged between 68.8±1.9 pS in the control, 80.1±2.5pS, in Cd²+, 74.2±2.4 pS in Cd²+/selenate, and 80.1±1.8 pS in selenate-pretreated plants. The lack of a clear tendency was likely an effect of equilibration of the pipette solution (without Cd²+/SeO₄(²⁻) with that of the luminal side of the vesicles. In the vacuole-attached configuration, in which natural vacuolar solution was not exchanged, there was a significant reduction in single-channel conductance in the Cd²+ (40.3±2.8 pS), Cd²+/selenate (47.1±2.8 pS) and selenate-pretreated (42.3±1.4 pS) plants, compared to the control (60.2±1.7 pS). The reduction in single-channel conductance only partially explained the significant decline in the densities of ion current flowing through the vacuolar membrane in the whole-vacuole configuration in the plants growing on Cd²+ and Cd²+/selenate media. Thus, Cd²+ accumulation in the vacuole reduced the number of active SV channels from 0.28±0.05 μm⁻² in the control to 0.021±0.005 and 0.039±0.004 μm⁻² in Cd²+ and Cd²+/selenate-pretreated plants, respectively.
Collapse
Affiliation(s)
- Halina Dziubinska
- Department of Biophysics, Institute of Biology, Maria Curie-Skłodowska University, Akademicka 19, PL-20-033 Lublin, Poland
| | | | | | | |
Collapse
|
25
|
Beeby A, Richmond L. Magnesium and the regulation of lead in three populations of the garden snail Cantareus aspersus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2010; 158:2288-2293. [PMID: 20206425 DOI: 10.1016/j.envpol.2010.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2009] [Revised: 01/29/2010] [Accepted: 02/07/2010] [Indexed: 05/28/2023]
Abstract
Helicid snails appear to regulate Pb more closely than other toxic metals, though it is reported as the least toxic. No regulatory mechanism has been described in animals, and the possible role of Mg in limiting Pb assimilation is examined here for the first time. Three populations of Cantareus aspersus were fed Pb and Ca with three levels of Mg for up to 64 days. Metal assimilation and production efficiency was calculated for each of 108 snails. Populations differed in their pattern of uptake but soft tissue Pb was unaffected by dietary Mg. The proportion of Pb assimilated did not change as soft tissue concentrations increased, indicating no specific regulatory mechanism. The daily addition of Pb to the soft tissues increases with growth rate suggesting uptake is instead some function of growth or cell turnover. Bioconcentration factors varied with time and are unreliable indicators of an evolved regulatory mechanism for Pb.
Collapse
Affiliation(s)
- Alan Beeby
- Department of Applied Science, London South Bank University, Borough Road, London SE1 0AA, UK.
| | | |
Collapse
|
26
|
Pastorinho MR, Telfer TC, Soares AMVM. Amphipod intersex, metals and latitude: a perspective. MARINE POLLUTION BULLETIN 2009; 58:812-817. [PMID: 19269653 DOI: 10.1016/j.marpolbul.2009.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2008] [Revised: 01/14/2009] [Accepted: 02/05/2009] [Indexed: 05/27/2023]
Abstract
Intersexuality has been widely reported in crustaceans with several mechanisms being directly or indirectly held responsible for its occurrence, amongst which pollution. No mechanistic relationship between metals and intersex has ever been established. Also the incidence of intersex in populations of the same invertebrate species in a latitudinal gradient has never been studied so far. Three populations (Iceland, Scotland and Portugal) of the amphipod Echinogammarus marinus were scrutinized. Intersex females from Iceland registered the highest fecundity loss. Only in Scottish samples females with two genital papillae and males with only one genital papillae were observed. Nevertheless, water, biota and sediment samples pointed to equivalent metal levels, and in consonance the prevalence of intersex was not significantly different between locations. An unequivocal relationship between metal presence and intersex induction cannot be presented, but our results advocate the potential role of metals as a direct cause of intersexuality in E. marinus.
Collapse
Affiliation(s)
- M Ramiro Pastorinho
- 1-Center for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | | | | |
Collapse
|
27
|
Molecular characterization of mu class glutathione-S-transferase from disk abalone (Haliotis discus discus), a potential biomarker of endocrine-disrupting chemicals. Comp Biochem Physiol B Biochem Mol Biol 2008; 150:187-99. [DOI: 10.1016/j.cbpb.2008.03.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2008] [Revised: 02/29/2008] [Accepted: 03/01/2008] [Indexed: 11/17/2022]
|
28
|
Xie L, Lambert D, Martin C, Cain DJ, Luoma SN, Buchwalter D. Cadmium biodynamics in the oligochaete Lumbriculus variegatus and its implications for trophic transfer. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2008; 86:265-271. [PMID: 18082277 DOI: 10.1016/j.aquatox.2007.11.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2007] [Revised: 11/02/2007] [Accepted: 11/06/2007] [Indexed: 05/25/2023]
Abstract
It has become increasingly apparent that diet can be a major source of trace metal bioaccumulation in aquatic organisms. In this study, we examined cadmium uptake, efflux, and subcellular compartmentalization dynamics in the freshwater oligochaete Lumbriculus variegatus. L. variegatus is an important component of freshwater food webs in Europe and North America and is potentially useful as a standard food source for laboratory-based trophic transfer studies. Cadmium accumulation and depuration were each followed for 10 days. Rate constants of uptake (k(u)) and efflux (k(e)) were estimated and subcellular Cd compartmentalization was followed over the course of uptake and efflux. The partitioning of Cd into operationally-defined subcellular compartments was relatively consistent throughout the 20-day experiment, with the majority of Cd accumulating in the cytosol. No major changes in Cd compartmentalization were observed over uptake or depuration, but there appeared to be some exchange between heat-stable and heat-labile cytosolic protein fractions. Cadmium accumulation from solution was strongly affected by ambient calcium concentrations, suggesting competition between Cd and Ca for uptake sites. Finally, we demonstrate the ability to manipulate the whole body calcium content of L. variegatus as a potential tool for examining calcium influences on dietary Cd dynamics. The potential for this species to be an important conduit of Cd to higher trophic levels is discussed, along with its potential as a standardized food source in metal trophic transfer studies.
Collapse
Affiliation(s)
- Lingtian Xie
- Department of Environmental and Molecular Toxicology, North Carolina State University, Raleigh, NC 27606, United States
| | | | | | | | | | | |
Collapse
|
29
|
Shaw JR, Colbourne JK, Davey JC, Glaholt SP, Hampton TH, Chen CY, Folt CL, Hamilton JW. Gene response profiles for Daphnia pulex exposed to the environmental stressor cadmium reveals novel crustacean metallothioneins. BMC Genomics 2007; 8:477. [PMID: 18154678 PMCID: PMC2234263 DOI: 10.1186/1471-2164-8-477] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2007] [Accepted: 12/21/2007] [Indexed: 11/25/2022] Open
Abstract
Background Genomic research tools such as microarrays are proving to be important resources to study the complex regulation of genes that respond to environmental perturbations. A first generation cDNA microarray was developed for the environmental indicator species Daphnia pulex, to identify genes whose regulation is modulated following exposure to the metal stressor cadmium. Our experiments revealed interesting changes in gene transcription that suggest their biological roles and their potentially toxicological features in responding to this important environmental contaminant. Results Our microarray identified genes reported in the literature to be regulated in response to cadmium exposure, suggested functional attributes for genes that share no sequence similarity to proteins in the public databases, and pointed to genes that are likely members of expanded gene families in the Daphnia genome. Genes identified on the microarray also were associated with cadmium induced phenotypes and population-level outcomes that we experimentally determined. A subset of genes regulated in response to cadmium exposure was independently validated using quantitative-realtime (Q-RT)-PCR. These microarray studies led to the discovery of three genes coding for the metal detoxication protein metallothionein (MT). The gene structures and predicted translated sequences of D. pulex MTs clearly place them in this gene family. Yet, they share little homology with previously characterized MTs. Conclusion The genomic information obtained from this study represents an important first step in characterizing microarray patterns that may be diagnostic to specific environmental contaminants and give insights into their toxicological mechanisms, while also providing a practical tool for evolutionary, ecological, and toxicological functional gene discovery studies. Advances in Daphnia genomics will enable the further development of this species as a model organism for the environmental sciences.
Collapse
Affiliation(s)
- Joseph R Shaw
- Department of Biology, Dartmouth College, Hanover, New Hampshire 03755, USA.
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Bergey LL, Weis JS. Molting as a mechanism of depuration of metals in the fiddler crab, Uca pugnax. MARINE ENVIRONMENTAL RESEARCH 2007; 64:556-62. [PMID: 17590429 DOI: 10.1016/j.marenvres.2007.04.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2007] [Revised: 04/26/2007] [Accepted: 04/28/2007] [Indexed: 05/16/2023]
Abstract
Metal distributions in the exoskeleton and soft tissues of the fiddler crab, Uca pugnax, were examined during intermolt and immediate postmolt to determine if distribution of the metals changed prior to molting and to determine if molting is a feasible mechanism to depurate metals. Fiddler crabs were collected from two locations in New Jersey, a highly contaminated site and a relatively clean environment. The crabs from the contaminated site had higher concentrations of metals in their soft tissues for Cu, significantly higher concentrations of Pb in their soft tissues and carapace, but did not have any significant differences in concentrations of Zn in comparison to their conspecifics from the relatively clean site during intermolt. Crabs from the contaminated site has significantly higher levels of Cu, Pb, and Zn in both their soft tissues and exuvia immediately after molting. Crabs from both sites shifted copper and zinc from the carapace into the soft tissues prior to molting. Lead distribution shifted from the soft tissues to the exoskeleton prior to molting in the population from the contaminated site but shifted from the exoskeleton into the soft tissues for the relatively clean site. Average percent of the total body burden eliminated during the molting process for the highly contaminated site varied with each metal, 12% Cu, 76% Pb, and 22% Zn. Average percent of the total body burden eliminated during molting process for the relatively clean site also varied with each metal and was significantly lower than the conspecifics from the contaminated site, 3% Cu, 56% Pb, and 8% Zn. Molting can reduce overall body burdens significantly and is a feasible mechanism to depurate lead.
Collapse
Affiliation(s)
- Lauren L Bergey
- Rutgers, The State University of New Jersey, Department of Biological Sciences, 195 University Avenue, Newark, NJ 07102, USA.
| | | |
Collapse
|
31
|
Rodríguez EM, Medesani DA, Fingerman M. Endocrine disruption in crustaceans due to pollutants: A review. Comp Biochem Physiol A Mol Integr Physiol 2007; 146:661-71. [PMID: 16753320 DOI: 10.1016/j.cbpa.2006.04.030] [Citation(s) in RCA: 155] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2005] [Revised: 04/28/2006] [Accepted: 04/29/2006] [Indexed: 11/26/2022]
Abstract
The main endocrine-regulated processes of crustaceans have been reviewed in relation to the effects of endocrine-disrupting compounds (EDCs). Molting has been shown to be inhibited by several organic pollutants, such as xenoestrogens and related compounds, as well as by some pesticides. Most of these disrupters are thought to interfere with ecdysone at target tissues, although only for a few has this action been demonstrated in vitro. The heavy metal cadmium appears to inhibit some ecdysone secretion. Juvenoid compounds have also been shown to inhibit molting, likely by interfering with the stimulatory effect of methyl farnesoate. A molt-promoting effect of emamectin benzoate, a pesticide, has also been reported. As for reproduction, a variety of organic compounds, including xenoestrogens, juvenoids and ecdysteroids, has produced abnormal development of male and female secondary sexual characters, as well as alteration of the sex ratio. Cadmium and copper have been shown to interfere with hormones that stimulate reproduction, such as methyl farnesoate, as well as with secretion of the gonad inhibiting hormone, therefore affecting, for example, ovarian growth. Several heavy metals were able to produce hyperglycemia in crustaceans during short times of exposure; while a hypoglycemic response was noted after longer exposures, due to inhibition of secretion of the crustacean hyperglycemic hormone. The ecological relevance of EDCs on crustaceans is discussed, mainly in relation to the identification of useful biomarkers and sentinel species. New experimental approaches are also proposed.
Collapse
Affiliation(s)
- Enrique M Rodríguez
- Department of Biodiversity and Experimental Biology, FCEyN, University of Buenos Aires, Argentina.
| | | | | |
Collapse
|