Abstract：
:Spatial and temporal increases of hypoxia in estuaries are of major environmental concern. Since mitochondria consume most of the oxygen in the cell, we examined the potential role of mitochondrial gene and protein expression in adaptation to chronic hypoxia in the grass shrimp Palaemonetes pugio. Grass shrimp were exposed to DO levels slightly above and below the critical pO(2), 1.8 mg/L, for P. pugio, and hypoxia-induced alterations in gene expression were screened using custom cDNA macroarrays. Mitochondrial gene expression was not affected by exposure to moderate hypoxia (2.5mg/L DO). However, chronic exposure to severe hypoxia (1.5mg/L DO) for 7 days resulted in an increase of transcription of genes present in the mitochondrial genome (including 16S rRNA and Ccox 1), together with up-regulation of genes involved in Fe/heme metabolism. This pattern was completely reversed by day 14, when a significant down-regulation of these genes was observed. Separating mitochondrial proteins in two dimensions by IEF and reverse phase chromatography, followed by LC/MS/MS of differentially expressed proteins, showed cytochrome c oxidase subunit 2, encoded by Ccox 2, was down-regulated after 12d exposure to severe hypoxia. It appears therefore that decreases in mitochondrial Ccox gene transcription result in decreased mitochondrial Ccox protein synthesis. These results suggest that mitochondrial genes and proteins show promise as molecular indicators of exposure to hypoxia.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Brouwer M,Brown-Peterson NJ,Hoexum-Brouwer T,Manning S,Denslow Ndoi
10.1016/j.marenvres.2008.02.046subject
Has Abstractpub_date
2008-07-01 00:00:00pages
143-5issue
1eissn
0141-1136issn
1879-0291pii
S0141-1136(08)00064-0journal_volume
66pub_type
杂志文章abstract：:Few in vivo studies have been conducted to assess how nanoparticle (NP) characteristics such as particle form and shape affect their toxicity and bioaccumulation. In the present study, the deposit feeder, Capitella teleta, was used to investigate the influence of copper form (CuO NPs, micron-sized CuO particles, and a...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2015.06.010
更新日期：2015-10-01 00:00:00
abstract：:Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants of the marine environment, arising predominantly from petrochemical contamination and pyrogenic sources. A biomarker of PAH exposure was employed in a field study (South West, Spain) in both captured (indigenous) and deployed (caged) shore crabs (Carcin...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2010.03.003
更新日期：2010-07-01 00:00:00
abstract：:Deep-sea demersal fish surveys using baited cameras were undertaken in the West African oil provinces between 1297 m and 2453 m depth in 2002, 2005 and 2008. A total of 29 deployments amounting to 16,175 images encountered 31 species of bait attending deep-sea fish from 17 families. The extrapolated species richness w...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.05.009
更新日期：2017-08-01 00:00:00
abstract：:Immunohistochemical localization of enzymes is compared directly with localization of enzyme activity with (catalytic) enzyme histochemical methods. The two approaches demonstrate principally different aspects of an enzyme. The immunohistochemical method localizes the enzyme protein whether it is active or not whereas...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00169-1
更新日期：2002-09-01 00:00:00
abstract：:Coral reefs are threatened worldwide by global climate change, manifested in anthropogenic ocean warming and acidification. Despite the importance of coral sexual reproduction for the continuity of coral reefs, our understanding of the extent of the impact of climate change on coral sexual reproduction, particularly o...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105215
更新日期：2021-01-01 00:00:00
abstract：:This study aimed to add light-avoidance as a categorizing technique for the study of mesopelagic acoustic layers. Data recorded along the 20° W parallel from 20° N to Iceland showed three types of mesopelagic layers: the non-avoiding non-migrant deep scattering layer (NMDSL), which dropped its intensity toward the nor...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2019.104842
更新日期：2020-02-01 00:00:00
abstract：:Domoic acid (DA) is a neurotoxic amino acid produced by several marine algal species of the Pseudo-nitzschia (PN) genus. We studied the elimination of DA from hemolymph after intravascular (IV) injection in razor clams (Siliqua patula), mussels (Mytilus edulis) and Dungeness crabs (Cancer magister). Crabs were also in...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.02.012
更新日期：2008-07-01 00:00:00
abstract：:Understanding the movements of fish in relation to areas of contaminated and urbanized habitats is crucial to fisheries management and habitat remediation. In this study, the movements of white croaker in the Los Angeles and Long Beach Harbors were examined using both active and passive acoustic telemetry tracking. Da...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2016.08.004
更新日期：2016-09-01 00:00:00
abstract：:We studied the accumulation of polychlorinated biphenyls (PCBs), 1,1,1.trichloro-2,2-bis[p-chlorophenyl]ethane (DDT) and its metabolites, and vitamins A and E in the top levels of the Baltic Sea food web. The investigation focused on the transfer of contaminants and vitamins to the ringed seal (Phoca hispida baltica) ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.10.007
更新日期：2005-09-01 00:00:00
abstract：:Chronic exposure to organic contaminants such as polychlorinated biphenyls (PCBs) can lead to the development of resistance to these chemicals, a condition associated with reduced response of CYP1A1, a pollutant-inducible biomarker. We measured CYP1A activity (ethoxyresorufin o-deethylase, EROD) and PCB concentrations...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.03.067
更新日期：2004-08-01 00:00:00
abstract：:Humic compounds were determined in sediments collected in an area of the Adriatic sea receiving fresh waters from the river Po. Sediment cores (10 cm) were sectioned into four layers which were analysed separately for redox potential (Eh), total phosphorus (TP), total organic carbon (TOC), humic (HA) and fulvic acid (...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2005.05.002
更新日期：2006-02-01 00:00:00
abstract：:Economic development, coastal population growth, and expansion of tourism-related activities along coastlines have been the leading causes of marine debris pollution worldwide. While the problem of marine debris pollution has been increasingly recognized, there has been limited research on its socioeconomic drivers, p...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105042
更新日期：2020-09-01 00:00:00
abstract：:Large organic falls to the benthic environment, such as dead wood or whale bones, harbour organisms relying on sulfide-oxidizing symbionts. Nothing is known however, concerning sulfide enrichment at the wood surface and its relation to wood colonization by sulfide-oxidizing symbiotic organisms. In this study we combin...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.11.006
更新日期：2009-03-01 00:00:00
abstract：:To better understand the complexity of the brain-pituitary-gonad axis (BPG) in fish, we developed a biologically based pharmacodynamic model capable of accurately predicting the normal functioning of the BPG axis in salmon. This first-generation model consisted of a set of 13 equations whose formulation was guided by ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2006.04.022
更新日期：2006-07-01 00:00:00
abstract：:A comparative study on the butyltin levels in various organisms showed that marked bioaccumulation occurs in certain lower trophic levels; i.e. from seawater to phytoplankton and into caprellid amphipods, Caprella spp. Caprella spp., which inhabit algal communities and aquaculture beds in the subtidal zone, are small ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(00)00265-8
更新日期：2001-08-01 00:00:00
abstract：:Seagrasses represent high primary productivity and provide important ecosystem services to the marine environment. Seagrass-associated microbial communities are playing essential ecological functional roles in biogeochemical cycles. However, little is known about the effect of seagrass vegetation on microbial communit...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105174
更新日期：2020-12-01 00:00:00
abstract：:This study assesses the relative importance of water and sediments as vectors of TBT uptake in the sediment-dwelling suspension feeder, Ruditapes decussatus. Accumulation of TBT was determined in R. decussatus exposed for 60 days to moderately high but environmentally realistic levels of TBT in water (100 ng Snl(-1)) ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00104-6
更新日期：2002-08-01 00:00:00
abstract：:Biomarker assays are widely used as proxies for contaminant-induced effects in aquatic organisms. However, in many cases, their intrinsic natural variability due to exogenous and endogenous factors makes the interpretation of biomarker data difficult. In the present study, we investigated the natural fluctuations of s...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2012.06.005
更新日期：2012-08-01 00:00:00
abstract：:Previous studies have shown that metal partitioned to a subcellular compartment containing trophically available metal (TAM) is readily available to predators and may be enhanced by increased binding of metal to heat-stable proteins (HSP - e.g., metallothioneins). The aim of the current investigation was to determine ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.07.003
更新日期：2005-06-01 00:00:00
abstract：:The fin whale (Balaenoptera physalus) is the most abundant and widespread mysticete species in the Mediterranean Sea, found mostly in deep, offshore waters of the western and central portion of the region. In the Mediterranean, this species is known to feed mainly on krill, in contrast to its Atlantic counterpart, whi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.03.009
更新日期：2017-06-01 00:00:00
abstract：:The blue mussel (Mytilus spp.) is widely used as a bioindicator for monitoring of coastal water pollution (mussel watch programs). Herein we provide a review of this study field with emphasis on: the suitability of Mytilus spp. as environmental sentinels; uptake and bioaccumulation patterns of key pollutant classes; t...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2017.07.024
更新日期：2017-09-01 00:00:00
abstract：:Aim of this study was to evaluate the responsiveness of red mullet (Mullus barbatus) liver detoxification enzymes to PAHs at transcriptional and post-transcriptional levels in the field. Fish were captured in the north-eastern Adriatic Sea, close to an oil refinery. Sixteen PAHs (EPA) were determined in sediments and ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2010.03.009
更新日期：2010-07-01 00:00:00
abstract：:Fourteen trace elements (Ag, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, V, and Zn) were analyzed in livers and muscles from 22 fish species from the New Caledonia lagoon, which is subjected to important chemical inputs due to intense land-based mining activities (New Caledonia is the third largest world producer of N...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2013.03.001
更新日期：2013-06-01 00:00:00
abstract：:In this study we examined the effect of: observer presence; observer speed; and the impact that multiple surveys had on the number of counted fish in a visual census survey in a typical Mediterranean rocky habitat. SCUBA observer presence had no influence on the number of fish per survey. An improvement in the methodo...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(00)00028-3
更新日期：2001-02-01 00:00:00
abstract：:Nrf2 is a well-known transcription factor controlling a number of antioxidant defense-related genes, which is understudied in bivalves. In this study, oysters Crassostrea gigas were exposed for 24, 48 and 96 h to 10 or 30 μM tert-butylhydroquinone (tBHQ), a classic Nrf2 activator. At 96 h, a clear induction of GSH-rel...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.07.020
更新日期：2017-09-01 00:00:00
abstract：:The new record of a shallow-water submarine hydrothermal field (<150 m w.d.) in the western Mediterranean Sea (Tyrrhenian Sea, Italy) allows us to study CO2 fluid impact on benthic foraminifers. Benthic foraminifers calcification process is sensitive to ocean acidification and to local chemical and physical parameters...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2018.02.015
更新日期：2018-05-01 00:00:00
abstract：:A heart fatty acid-binding protein (H-FABP) cDNA was isolated from the liver of the mummichog (Fundulus heteroclitus) and the complete cDNA sequence and predicted amino acid sequence was determined. This cDNA binds to a mRNA product of 0.95 kb with the highest level of RNA expression in the male liver, gills, and gona...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00130-7
更新日期：2002-09-01 00:00:00
abstract：:The purpose of this paper is to describe the status and general faunal composition of sponge reefs in the Georgia Basin (GB), British Columbia, Canada. Fourteen distinct deep-water glass sponge (Hexactinellid) reefs have been mapped using multibeam bathymetry and sidescan sonar in the GB. Seven of these have been surv...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.09.002
更新日期：2008-12-01 00:00:00
abstract：:The role of seawater NOM in reducing metal toxicity for marine organisms is not well understood. We investigated the effects of five different marine NOMs (two autochthonous, one allochthonous, two of mixed origin, at 8 mg C/L), three metals (6 μg Cu/L; 20 μg Pb/L; 25 μg Zn/L), and combinations between them, to early ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.12.009
更新日期：2018-04-01 00:00:00
abstract：:Accurate and reliable benthic quality indicators are in great demand following the recent developments and the strict time schedule for implementing the European Water Framework Directive. The Mondego estuary has experienced a progressive deterioration during the 1990s, followed by a partial ecological recovery due to...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2009.04.001
更新日期：2009-07-01 00:00:00
