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Zhang QQ, Qiao M. Transcriptional response of springtail (Folsomia candida) exposed to decabromodiphenyl ether-contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 719:134859. [PMID: 31837853 DOI: 10.1016/j.scitotenv.2019.134859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 09/29/2019] [Accepted: 10/05/2019] [Indexed: 05/22/2023]
Abstract
Decabromodiphenyl ether (BDE209) is a widely used brominated flame retardant that has become a common soil contaminant of concern due to its persistence and toxicity. However, little is known about molecular-level effects of BDE209 on soil invertebrates. Here, we detected changes in gene transcription of the soil springtail, Folsomia candida, exposed to BDE209 (0.81 mg/kg) in soil for 2, 7 and 14 days. We identified 16 and 771 significantly differentially expressed genes after 2 and 7 days of exposure respectively, and no significantly regulated genes were shared among the two time points. No genes were affected after 14 days of exposure. According to the annotation of the significantly differently expressed genes at 2 and 7 day exposure, we found that BDE209 affected the transcription of genes involved in moulting, neural signal transmission and detoxification. Our results suggested that BDE209 could disrupt moulting of F. candida via the ecdysteroid pathway, and cause neurotoxicity through disrupting some neurotransmitter signalling pathways. This study provided insights into the toxic mechanism of BDE209 on F. candida.
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Affiliation(s)
- Qian-Qian Zhang
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Qiao
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Mendoza-Porras O, Botwright NA, Reverter A, Cook MT, Harris JO, Wijffels G, Colgrave ML. Identification of differentially expressed reproductive and metabolic proteins in the female abalone (Haliotis laevigata) gonad following artificial induction of spawning. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2016; 24:127-138. [PMID: 27268288 DOI: 10.1016/j.cbd.2016.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 04/14/2016] [Accepted: 04/30/2016] [Indexed: 10/21/2022]
Abstract
Inefficient control of temperate abalone spawning prevents pair-wise breeding and production of abalone with highly marketable traits. Traditionally, abalone farmers have used a combination of UV irradiation and application of temperature gradients to the tank water to artificially induce spawning. Proteins are known to regulate crucial processes such as respiration, muscle contraction, feeding, growth and reproduction. Spawning as a pre-requisite of abalone reproduction is likely to be regulated, in part, by endogenous proteins. A first step in elucidating the mechanisms that regulate spawning is to identify which proteins are directly involved during spawning. The present study examined protein expression following traditional spawning induction in the Haliotis laevigata female. Gonads were collected from abalone in the following physiological states: (1) spawning; (2) post-spawning; and (3) failed-to-spawn. Differential protein abundance was initially assessed using two-dimensional difference in-gel electrophoresis coupled with mass spectrometry for protein identification. A number of reproductive proteins such as vitellogenin, vitelline envelope zona pellucida domain 29 and prohibitin, and metabolic proteins such as thioredoxin peroxidase, superoxide dismutase and heat shock proteins were identified. Differences in protein abundance levels between physiological states were further assessed using scheduled multiple reaction monitoring mass spectrometry. Positive associations were observed between the abundance of specific proteins, such as heat shock cognate 70 and peroxiredoxin 6, and the propensity or failure to spawn in abalone. These findings have contributed to better understand both the effects of oxidative and heat stress over abalone physiology and their influence on abalone spawning.
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Affiliation(s)
- Omar Mendoza-Porras
- CSIRO Agriculture, Queensland Bioscience Precinct, 306 Carmody Road, St Lucia, Queensland 4067, Australia; School of Biological Sciences, Flinders University, GPO Box 2100, South Australia 5001, Australia; Australian Seafood Cooperative Research Centre, Science Park Adelaide, Laffer Drive, Bedford Park, South Australia 5042, Australia.
| | - Natasha A Botwright
- CSIRO Agriculture, Queensland Bioscience Precinct, 306 Carmody Road, St Lucia, Queensland 4067, Australia.
| | - Antonio Reverter
- CSIRO Agriculture, Queensland Bioscience Precinct, 306 Carmody Road, St Lucia, Queensland 4067, Australia.
| | - Mathew T Cook
- CSIRO Agriculture, Queensland Bioscience Precinct, 306 Carmody Road, St Lucia, Queensland 4067, Australia.
| | - James O Harris
- School of Biological Sciences, Flinders University, GPO Box 2100, South Australia 5001, Australia.
| | - Gene Wijffels
- CSIRO Agriculture, Queensland Bioscience Precinct, 306 Carmody Road, St Lucia, Queensland 4067, Australia.
| | - Michelle L Colgrave
- CSIRO Agriculture, Queensland Bioscience Precinct, 306 Carmody Road, St Lucia, Queensland 4067, Australia.
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Zhai HN, Zhou J, Cai ZH. Cloning, characterization, and expression analysis of a putative 17 beta-hydroxysteroid dehydrogenase 11 in the abalone, Haliotis diversicolor supertexta. J Steroid Biochem Mol Biol 2012; 130:57-63. [PMID: 22249002 DOI: 10.1016/j.jsbmb.2011.12.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2011] [Revised: 12/17/2011] [Accepted: 12/19/2011] [Indexed: 11/26/2022]
Abstract
The 17-beta-hydroxysteroid dehydrogenases (17β-HSDs) are key enzymes for sex steroid biosynthesis. To date, relatively little is known about the presence and function of 17β-HSDs in marine gastropods. In the present study, a cDNA sequence encoding putative 17β-HSD type 11 (17β-HSD-11) was identified in marine abalone (Haliotis diversicolor supertexta). The full-length cDNA contains 1058bp, including an open reading frame (ORF) of 900bp that encodes a protein of 299 amino acids. Comparative structural analysis revealed that abalone 17β-HSD-11 shares relatively high homology with other 17b-HSD-11 hormologues, and a lesser degree of amino acid identity with other forms of 17b-HSD, especially in the functional domains, including the cofactor binding domain (TGxxxGxG) and catalytic site (YxxSK). Phylogenetic analysis showed that abalone 17β-HSD-11 belongs to the short-chain dehydrogenase/reductase (SDR) family. Functional analysis following transient transfection of the ORF into human embryonic kidney-293 (HEK-293) cells indicated that abalone 17β-HSD-11 has the ability to convert 5α-androstane-3α,17β-diol (3α-diol) to androsterone (A) and testosterone (T) to androstenedione (4A). Expression analysis in vivo demonstrated that abalone 17β-HSD-11 is differentially expressed during three stages (non-reproductive, reproductive, and post-reproductive). Taken together, these results indicate that ab-17β-HSD-11 is an SDR family member with a potential role in steroid regulation during the reproductive stage.
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Affiliation(s)
- Hong-ning Zhai
- School of Life Sciences, Tsinghua University, Beijing, PR China
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Identification and functional characterization of a putative 17β-hydroxysteroid dehydrogenase 12 in abalone (Haliotis diversicolor supertexta). Mol Cell Biochem 2011; 354:123-33. [DOI: 10.1007/s11010-011-0811-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 03/24/2011] [Indexed: 12/24/2022]
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Zhou J, Zhu XS, Cai ZH. The impacts of bisphenol A (BPA) on abalone (Haliotis diversicolor supertexta) embryonic development. CHEMOSPHERE 2011; 82:443-450. [PMID: 20970156 DOI: 10.1016/j.chemosphere.2010.09.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2010] [Revised: 09/09/2010] [Accepted: 09/16/2010] [Indexed: 05/30/2023]
Abstract
The effects of bisphenol A (BPA) on abalone (Haliotis diversicolor supertexta) embryonic development were investigated by exposing the fertilized eggs to four different concentrations of BPA (0.05, 0.2, 2 and 10 μg mL(-1)). Toxicity endpoints including the embryo development parameters, the physiological features and the expression profile of several reference genes (prohormone convertase 1, PC1; cyclin B, CB; and cyclin-dependent kinase 1, CDK1) were assessed. The results showed that BPA could markedly reduce embryo hatchability, increase developmental malformation, and suppress the metamorphosis behavior of larvae. The possible toxicological mechanisms hidden behind of these effects (i.e. disturbing the embryogenesis) might result from three aspects: (1) BPA disturbance the cellular ionic homeostasis and osmoregulation of abalone embryos by changing the Na+-K+-ATPase and Ca2+-Mg2+-ATPase levels; (2) BPA induced oxidative damage of embryos by significantly altering the peroxidase (POD) activities and the malondialdehyde (MDA) production; and (3) the RT-PCR analysis further demonstrated that BPA perturbed the cellular endocrine regulation and cell cycle progression by down-regulating the PC1 gene, as well as over-expressing the CB and CDK1 genes. This is the first comprehensive study on the developmental toxicity of BPA to the marine abalone at morphological, physiological and molecular levels. The results in this study also indicated that the embryo tests can contribute to the ecological risk assessment of the endocrine disruptors in marine environment.
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Affiliation(s)
- Jin Zhou
- Life Sciences Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, PR China
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