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：:Over 1990-1998, the Mondego estuary, Portugal, experienced profound modifications due to eutrophication, culminating in the disappearance and replacement of Zostera noltii by opportunistic macroalgae in the inner most disturbed areas. A decade after restoration measures implementation, Z. noltii started to gradually r...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2011.11.005
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.03.043
更新日期：2004-08-01 00:00:00
abstract：:Concentrations of cadmium, copper, iron, lead, manganese, nickel and zinc were investigated in two species of mussel from the Kuril Islands in the north-western Pacific Ocean: the short-lived mussel Mytilus trossulus and the much larger and longer-lived Crenomytilus grayanus. The concentrations of most elements were l...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(00)00264-6
更新日期：2002-04-01 00:00:00
abstract：:Maps are useful scientific tools for presenting environmental information, but the statistical techniques necessary to prepare scientifically rigorous maps have primarily focused on terrestrial habitats. This study compares three popular techniques (triangulation, kriging, and co-kriging) to map sediment grain size in...
journal_title：Marine environmental research
pub_type： 杂志文章
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更新日期：2003-07-01 00:00:00
abstract：:We have shown previously that exposure of Atlantic croaker to a PCB mixture (Aroclor 1254) results in impaired reproductive neuroendocrine function. In addition, we have identified hypothalamic tryptophan hydroxylase (TPH), the rate-limiting enzyme in serotonin (5-hydroxytryptamine) synthesis, as a target of PCB neuro...
journal_title：Marine environmental research
pub_type： 杂志文章
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更新日期：2004-08-01 00:00:00
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pub_type： 杂志文章
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abstract：:Physiological tolerances limit the distribution of marine species, with geographical ranges being set by environmental factors, such as temperature and salinity, which affect the rates of vital processes and survival of marine ectotherms. The physiological tolerances of the non-native marine amphipod Caprella mutica w...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2007.02.003
更新日期：2007-09-01 00:00:00
abstract：:Exposure to synthetic chemicals is a key environmental challenge faced by aquatic organisms. The time and dose effects of the pharmaceuticals diclofenac, ibuprofen, and sildenafil citrate on sperm motility and successful fertilisation are studied using the echinoderms, Asterias rubens and Psammechinus miliaris, and th...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.04.005
更新日期：2017-06-01 00:00:00
abstract：:The need to develop powerful tools to detect exposure and effects of POPs and emerging contaminants in Mediterranean cetaceans led us to develop a suite of sensitive non-lethal biomarkers in integument biopsies of free-ranging animals. In order to propose induction of CYP1A1 and CYP2B, detected by Western blot analysi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.02.006
更新日期：2008-07-01 00:00:00
abstract：:A range of biological traits of nematode species were combined to identify patterns in the functional composition of their assemblages collected at 19 soft-bottom stations in the southwestern North Sea with the primary aim to determine which environmental variables control communities. We used 19 categories of five bi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2006.10.006
更新日期：2007-05-01 00:00:00
abstract：:Coral reefs are responsible for a wide array of ecosystem services including shoreline protection. However, the processes involved in delivering this particular service have not been fully understood. The objective of the present review was to compile the main results in the literature regarding the study of shoreline...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2017.03.007
更新日期：2017-06-01 00:00:00
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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：:Samples of macrobenthic organisms were obtained at seven stations on a presumed pollution gradient from the head of Vancouver Harbour through to outer Howe Sound. Polychaetes (83 apparent species) and molluscs (43 apparent species) were the most abundant faunal groups numerically (44.8 and 47.9%, respectively). Mollus...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/S0141-1136(03)00064-3
更新日期：2004-02-01 00:00:00
abstract：:Competition for space is a remarkable ecological force, comparable to predation, producing a strong selective pressure on benthic invertebrates. Some invertebrates, thus, possess antimicrobial compounds to reduce surface bacterial growth. Antimicrobial inhibition is the first step in avoiding being overgrown by other ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2015.02.001
更新日期：2015-04-01 00:00:00
abstract：:Marine organisms that occur in urbanised bays can be exposed to low-level chronic pollution that results in sublethal changes to behavior or reproduction. The effects of low levels of copper on the reproductive success of a mobile invertebrate were assessed. Free living flatworms are common predators of bivalves and b...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2007.02.004
更新日期：2007-09-01 00:00:00
abstract：:Mounting evidence suggests that the P-glycoprotein (pgp) efflux pump may be a modulator of bioavailability and a mode of excretion for xenobiotics. Immunohistochemistry was utilized to examine the distribution and inducibility of a pgp like protein in catfish. Immunoreactivity to the MDR C-219 monoclonal antibody was ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(00)00116-1
更新日期：2000-07-01 00:00:00
abstract：:Irregular sea urchins such as the spatangoid Spatangus purpureus are important bioturbators that contribute to natural biogenic disturbance and the functioning of biogeochemical cycles in soft sediments. In the coastal waters of the Balearic Islands S. purpureus occurs in soft red algal beds, and can reach high densit...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2011.01.008
更新日期：2011-05-01 00:00:00
abstract：:The Quality of Rocky Bottoms index (CFR by its Spanish acronym) is a multimetric method used for the assessment of macroalgae communities in accordance to the European Water Framework Directive. In order to improve the precision and accuracy of the assessments, the index was adjusted using a continuous scoring system....
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2014.06.002
更新日期：2014-12-01 00:00:00
abstract：:Certain environmentally persistent compounds can adversely affect reproduction by acting as steroid hormone agonists or antagonists. The goal of the present study was to determine the developmental stage most susceptible to exogenous hormone (estradiol and testosterone) exposure using a small teleost model. In the fir...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(00)00068-4
更新日期：2000-07-01 00:00:00
abstract：:The estimation of oil spill effects on marine ecosystems is limited to the extent of our knowledge on the autochthonous biota. Fungi are involved in key ecological marine processes, representing a major component of post-spill communities. However, information on their functional capacities remains lacking. Herein we ...
journal_title：Marine environmental research
pub_type： 杂志文章
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更新日期：2019-10-19 00:00:00
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journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2011.12.001
更新日期：2012-03-01 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
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更新日期：2016-09-01 00:00:00
abstract：:Clearance rates, respiration rates and food absorption efficiencies of the commercially interesting subtidal bivalve Modiolus barbatus were measured at different temperatures under laboratory conditions and scope for growth calculated. Clearance rates were highest at temperatures from 20 °C to 28 °C, whereas respirati...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2010.10.005
更新日期：2011-02-01 00:00:00
abstract：:The effects of a simulated spill of sunflower oil in salt marsh sediments were compared with an experiment with linseed oil. Sunflower and linseed oil penetrated the sediments at the same rates but different adsorption of the oils onto sediment particles resulted in the establishment of anaerobic conditions at shallow...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/S0141-1136(02)00309-4
更新日期：2003-09-01 00:00:00
abstract：:The aim of this work was to characterize the cholinesterases from gills of Crassostrea rhizophorae in order to use them as biomarkers. Gills were homogenized and then centrifuged (9,000 x g, 4 degrees C, 30 min). S9 and Triton X-100 S9 treated (TX S9) fractions were employed as enzyme source. Km(ap) and Vmax were esti...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00136-8
更新日期：2002-09-01 00:00:00
abstract：:Harmful algal blooms (HABs) have increased throughout the world's coastal oceans during the last century mostly due to water eutrophication and climate change. These blooms are often accompanied by extreme extensive negative impacts to fisheries, coastal resources, public health and local economies. However, limited s...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2018.06.019
更新日期：2018-09-01 00:00:00
abstract：:Microplastics are recognised as a (persistent) pollutant and are believed to be ubiquitous in the marine environment. The importance of this issue is evident from the large number of technical publications and research efforts within the past decade. However, the Arabian (Persian) Gulf region has few reported datasets...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2020.104961
更新日期：2020-07-01 00:00:00
abstract：:Mucilaginous aggregates produced by planktonic or benthic algae are considered ecological threats to marine systems. The study evaluated the effects of the spread of benthic mucilaginous aggregates on the structure of coralligenous assemblages. The assemblage and the quality of a site subjected to a benthic mucilage b...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2018.06.011
更新日期：2018-09-01 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：: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
