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Expression profiles of two small heat shock proteins and antioxidant enzyme activity in Mytilus galloprovincialis exposed to cadmium at environmentally relevant concentrations 被引量:5
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作者 由丽萍 宁璇璇 +4 位作者 陈磊磊 张林宝 赵建民 刘小莉 吴惠丰 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2014年第2期334-343,共10页
Small heat shock proteins encompass a widespread but diverse class of proteins, which play key roles in protecting organisms from various stressors. In the present study, the full-length cDNAs of two small heat shock ... Small heat shock proteins encompass a widespread but diverse class of proteins, which play key roles in protecting organisms from various stressors. In the present study, the full-length cDNAs of two small heat shock proteins (MgsHSP22 and MgsHSP24.1) were cloned from Mytilus galloprovincialis, which encoded peptides of 181 and 247 amino acids, respectively. Both MgsHSP22 and MgsHSP24.1 were detected in all tissues examined by real-time PCR, with the highest expression being observed in muscle and gonad tissues. The real-time PCR results revealed that Cd significantly inhibited MgsHSP22 expression at 24 h and MgsHSP24.1 at 24 and 48 h under 5 ug/L Cd2+ exposure. MgsHSP24.1 expression was also significantly inhibited after 50 ug/L Cd2+ exposure for 48 h. With regard to antioxidant enzymes, increased GPx and CAT activity were detected under Cd2+ stress (5 and 50 ug/L), while no significant difference in SOD activity was observed throughout the experiment. Overall, both MgsHsps and antioxidant enzymes revealed their potential as Cd stress biomarkers in M. galloprovincialis. 展开更多
关键词 Mytilus galloprovincialis small heat shock protein superoxide dismutase (SOD) catalase (CAT) glutathione peroxidase (GPx) CADMIUM
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Cryopreservation of strip spawned sperm using programmable freezing technique in the blue mussel Mytilus galloprovincialis 被引量:1
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作者 LIU Yibing LIU Shiwen +3 位作者 LIU Bingli QIN Jianguang XU Tong LI Xiaoxu 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2018年第6期2351-2357,共7页
In this study, a programmable freezing technique has been developed for strip spawned sperm in the blue mussel, M ytilus galloprovincialis. The optimized key parameters include cooling rate, endpoint temperature, thaw... In this study, a programmable freezing technique has been developed for strip spawned sperm in the blue mussel, M ytilus galloprovincialis. The optimized key parameters include cooling rate, endpoint temperature, thawing temperature, sugar addition and sperm to oocyte ratio. The sperm quality was assessed by the fertilization rate or the integrity of sperm component and organelle. The highest post-thaw sperm fertilization rate was 91%, which was produced with sperm cryopreserved in 8% dimethyl sulfoxide at the cooling rate of-4°C/min from 2°C to-30°C before being plunged into liquid nitrogen for at least 12 h, thawed in a 20°C seawater bath and fertilized at sperm to egg ratio of 50 000:1. The addition of glucose, sucrose or trehalose to 8% dimethyl sulfoxide could not further improve fertilization rates. The fluorescent assessments showed that the post-thaw sperm plasma membrane integrity and acrosome integrity were significantly damaged in comparison with fresh sperm. 展开更多
关键词 blue MUSSEL MYTILUS galloprovincialis strip SPAWNING SPERM CRYOPRESERVATION
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<i>Mytilus galloprovincialis</i>as Mussel Watch for Butyltins, Tin, Copper and Zinc Contamination, from Antifouling Paint Particles, in West Algerian Coastal Waters
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作者 Zoubida El Hadj Zitouni Boutiba Boucif Belbachir 《Journal of Environmental Protection》 2012年第9期1047-1053,共7页
Butyltin compounds (BTs) including tributyltin (TBT) and its degradation product (DBT) and concentrations of heavy metals (Sn, Cu and Zn) were determined in mussels (Mytilus galloprovincialis) collected from some West... Butyltin compounds (BTs) including tributyltin (TBT) and its degradation product (DBT) and concentrations of heavy metals (Sn, Cu and Zn) were determined in mussels (Mytilus galloprovincialis) collected from some West Algerian harbours. BTs were detected in all the mussels. Quanti?cation of BTs and heavy metals was carried respectively by Gas Chromatography coupled with Mass Spectrometer (GC-MS) and Atomic Absorption Spectrometry, flame AAS. Concentrations of total butyltin (BTs: DBT + TBT) in mussels ranged from 0.49 to 2438 ng/g wet wt. The concentrations (μg/g wet wt) of heavy metals ranged from 0.40 to 3.55 for Sn, 9.62 to 67.03 for Cu, and 87.13 to 731.51 for Zn. Total of tin in mussels ranged from 0.2 to 1054.78 ng/g. Higher concentrations of butyltin compounds were found in mussels collected from Mers El Kebir shipyard, Arzew, a petroleum harbour (industrial), and Beni Saf fishing harbour. This suggested that maritime activities nearby the harbours play a major role as the source of BTs. Indeed, harbour of Arzew is frequented by voluminous tanker. TBT was the predominant compound in mussels collected from almost all the sampling locations;indicate the fresh input of TBT in harbours. 展开更多
关键词 Organotin TIN COPPER ZINC MYTILUS galloprovincialis GC-MS AAS
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Trace Metals in Mussels <i>Mytilus galloprovincialis</i>from Dakar Coast (Senegal) 被引量:1
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作者 Birame Ndiaye Momar Ndiaye +5 位作者 Benita Pérez Cid Abdoulaye Diop Ibrahima Diagne Dame Cissé Cheikh Tidiane Dione Maoudo Hanne 《American Journal of Analytical Chemistry》 2020年第3期137-145,共9页
Mussel samples from the Dakar coast (Senegal) were analysed using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). Microwave acid digestion was also employed for metals (Mn, Pb, Cd, As) determination. Dakar coas... Mussel samples from the Dakar coast (Senegal) were analysed using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). Microwave acid digestion was also employed for metals (Mn, Pb, Cd, As) determination. Dakar coast usually receives numerous domestic and industrial discharges without prior treatment. The contents of Arsenic were, in all cases, higher than other metals. However, the bivalve molluscs present themselves as effective bio-monitors when assessing marine aquatic pollution by contaminants in the Dakar coast. The ANOVA analysis allows concluding that significant differences were found between mussels from different sampling points. In all cases, the February samples have in all cases a higher content than those collected in October. 展开更多
关键词 MYTILUS galloprovinciali Trace Element DAKAR COAST Pollution
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Flash flood simulation and valve behavior of Mytilus galloprovincialis measured with Hall sensors
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作者 Piero ADDIS Alberto ANGIONI +4 位作者 Viviana PASQUINI Angelica GIGLIOLI Valeria ANDREOTTI Stefano CARBONI Marco SECCI 《Integrative Zoology》 SCIE CSCD 2021年第2期138-148,共11页
Mussels close their shell as a protective strategy and the quantification of this behavioral marker may represent an alarm signal when they are exposed to environmental stressors.In the present study,we investigated t... Mussels close their shell as a protective strategy and the quantification of this behavioral marker may represent an alarm signal when they are exposed to environmental stressors.In the present study,we investigated the ability of the Mediterranean mussel Mytilus galloprovincialis to recover and then the resilience or inertia of valve activity after a pulsing exposition to diverse levels of salinity(5,10,20,and 35 PSU as reference value).The trial simulated an event of drastic and sudden reduction of seawater salinity thus mimicking an event of flash flood from intense rain.Valve gaping and movements were measured in continuous cycle for 10 days using a customized magnetoelectric device which uses Hall sensors.Results showed that under normal conditions of salinity(35 PSU),the general pattern of valve movements was a continuously open state with sporadic spikes indicating a closing motion.At salinity of 5,PSU mussels reacted by closing their valves,leading to a 77%mortality on the 4th day.At salinity of 10,PSU animals were observed with closed valves for the entire duration of the exposure and no mortality occurred,they showed a significant reduction in the valve activity once the reference value of salinity was reestablished.In contrast,salinity of 20 PSU did not trigger a significant behavioral response.Interestingly,there no define rhythms of valve movements were recorded during salinity challenges. 展开更多
关键词 Hall sensor mussels Mytilus galloprovincialis SALINITY valve activity
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Plasmid profiling and antibiotics resisitance of Escherichia coli strains isolated from Mytilus galloprovincialis and seawater
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作者 Cumhur Avşar İsmet Berber 《Journal of Coastal Life Medicine》 2014年第9期689-693,共5页
Objective:To investigate plasmid DNA profiles and the antibiotic resistance of a total of 41 strains of Escherichia coli(E.coli)isolated from seawater and mussel collected from 15 different sampling stations in Sinop,... Objective:To investigate plasmid DNA profiles and the antibiotic resistance of a total of 41 strains of Escherichia coli(E.coli)isolated from seawater and mussel collected from 15 different sampling stations in Sinop,Turkey.Methods:Most probable number technique was used for detection of E.coli.Antibiotic susceptibilities of the isolates were determined by the disc diffusion method.Plasmid DNA of the strains was extracted by the alkaline lyses procedure.Results:According to morphological and physiological properties,it was determined that the isolates belonged to E.coli species.Antibiotic susceptibility of the strains was determined against seven standard drugs using disc diffusion method.All isolates were resistant to bacitracin(100%),novobiocin(100%),ampicillin(12.5%),tetracycline(7.5%),ceftazidime(5%)and imipenem(2.5%),respectively,whereas the strains were susceptible to polymyxin B(100%).The multiple antibiotic resistance values for the strains were found in range from 0.28 to 0.57.In addition,plasmid DNA analyses results confirmed that 22 strains harbored a single or more than two plasmids sized approximately between 24.500 to 1.618 bp.The high-size plasmid(14.700 bp)was observed as common in 21 of all strains.Conclusions:As a result,our study indicated that the presence of antibiotic resistant E.coli strains in seawater and mussel might be potential risk for public health issue. 展开更多
关键词 Escherichia coli ANTIBIOGRAM PLASMID Mytilus galloprovincialis Seawater
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阴离子表面活性剂SDS和SDBS对紫贻贝生化指标的影响研究 被引量:11
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作者 刘波 俞志明 +1 位作者 宋秀贤 周斌 《环境科学》 EI CAS CSCD 北大核心 2007年第1期165-169,共5页
以青岛胶州湾现场调查数据为依据,选择阴离子表面活性剂十二烷基硫酸钠(SDS)和十二烷基苯磺酸钠(SDBS)作为污染物,以近海底栖生物紫贻贝为受试生物,研究了长期暴露后紫贻贝生化指标(SOD,CAT,GSH,GPx,GST,iNOS,AKP)的变化.结果表明,经过7... 以青岛胶州湾现场调查数据为依据,选择阴离子表面活性剂十二烷基硫酸钠(SDS)和十二烷基苯磺酸钠(SDBS)作为污染物,以近海底栖生物紫贻贝为受试生物,研究了长期暴露后紫贻贝生化指标(SOD,CAT,GSH,GPx,GST,iNOS,AKP)的变化.结果表明,经过72 d不同浓度暴露后,SDBS实验组紫贻贝体内的SOD、CAT和iNOS活性均有显著下降(除CAT 0.1 mg/L组外),GSH、GST和GPx在3.0 mg/L SDS和SDBS组较各自对照组均有显著升高.SDBS对紫贻贝生化指标影响的显著性水平大于SDS.统计分析显示,SDBS暴露组下GST与GPx呈显著正相关关系,iNOS与SOD也表现出一定正相关,但GSH与CAT、GSH与SOD呈现显著负相关关系.此外,结果发现后闭壳肌中iNOS可能是一个具有应用前景的阴离子表面活性剂暴露生物标志物. 展开更多
关键词 紫贻贝(Mytilus galloprovincialis) 十二烷基硫酸钠(SDS) 十二烷基苯磺酸钠(SDBS) 生物标志物 污染
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紫贻贝养殖产业的现状、问题与对策 被引量:5
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作者 刘明坤 阙华勇 +1 位作者 张国范 李莉 《海洋科学》 CAS CSCD 北大核心 2022年第3期135-144,共10页
为全面系统地了解中国紫贻贝(Mytilus galloprovincialis)养殖产业情况,作者从养殖产量、养殖面积、进出口贸易、养殖生产等方面概述了紫贻贝产业现状,对中国紫贻贝养殖业的种质资源、苗种生产方式、养殖生产流程、养殖方式等进行了综述... 为全面系统地了解中国紫贻贝(Mytilus galloprovincialis)养殖产业情况,作者从养殖产量、养殖面积、进出口贸易、养殖生产等方面概述了紫贻贝产业现状,对中国紫贻贝养殖业的种质资源、苗种生产方式、养殖生产流程、养殖方式等进行了综述,并针对紫贻贝养殖中存在的问题,从种质资源、养殖模式、设施设备、食品安全控制、精深加工等方面提出了发展对策,以期为后续紫贻贝相关研究提供参考和借鉴。 展开更多
关键词 紫贻贝(Mytilus galloprovincialis) 养殖概况 产业现状 贸易状况 对策建议
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紫贻贝与厚壳贻贝杂交子代生长和存活比较 被引量:2
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作者 杨林颖 刘明坤 +1 位作者 阙华勇 张国范 《海洋科学》 CAS 北大核心 2019年第8期64-71,共8页
利用辽宁大连的紫贻贝(Mytilus galloprovincialis)与福建宁德的厚壳贻贝(M.coruscus)为亲本,采用2×2双列杂交设计,构建了紫贻贝自交组(M.galloprovincialis♀×M.galloprovincialis♂)、正交组(M.gallopro-vincialis♀×M... 利用辽宁大连的紫贻贝(Mytilus galloprovincialis)与福建宁德的厚壳贻贝(M.coruscus)为亲本,采用2×2双列杂交设计,构建了紫贻贝自交组(M.galloprovincialis♀×M.galloprovincialis♂)、正交组(M.gallopro-vincialis♀×M.coruscus♂)、反交组(M.coruscus♀×M.galloprovincialis♂)与厚壳贻贝自交组(M.coruscus♀×M.coruscus♂)4个遗传组合,比较分析了受精率、孵化率、子代的成活率、生长数据等,探讨了紫贻贝与厚壳贻贝种间杂交的可行性,同时为贻贝良种选育提供参考。结果表明,自交组与反交组的受精强度具有不对称性,正交组与自交组受精率无差异,反交组的受精率及孵化率显著低于正交组与自交组(P<0.05),且浮游幼虫不能正常存活;正交组子代具有生长优势,第9、11、13天的浮游幼虫及第78天的稚贝壳长均显著大于自交组(P<0.05);正交组与紫贻贝自交组在整个幼虫阶段存活率无显著差异,在壳顶幼虫期显著高于厚壳贻贝自交组(P<0.05)。 展开更多
关键词 紫贻贝(Mytilus galloprovincialis) 厚壳贻贝(Mytilus coruscus) 种间杂交 生长 存活
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紫贻贝体尺性状和体质量性状对足丝性状的影响分析
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作者 张守都 张伟 +4 位作者 李永仁 赵文溪 彭慧婧 邹杰 宋爱环 《海洋科学》 CAS CSCD 北大核心 2022年第12期169-176,共8页
为研究紫贻贝(Mytilus galloprovincialis)体尺性状和体质量性状对足丝性状的影响,作者选取山东省青岛市即墨养殖区的紫贻贝为研究对象,分别测量壳长、壳宽、壳高等3个体尺性状,全湿质量、软体质量2个体质量性状以及足丝直径和足丝茎直... 为研究紫贻贝(Mytilus galloprovincialis)体尺性状和体质量性状对足丝性状的影响,作者选取山东省青岛市即墨养殖区的紫贻贝为研究对象,分别测量壳长、壳宽、壳高等3个体尺性状,全湿质量、软体质量2个体质量性状以及足丝直径和足丝茎直径2个足丝性状,通过相关性分析、多元回归分析和通径分析等方法分别研究了体尺性状和体质量性状对足丝性状的影响。结果显示:所有性状间相关系数为0.678~0.892,性状间相关性达到极显著水平(P<0.01);多元回归和通径分析结果显示,壳高和全湿质量分别对足丝性状的影响最大,壳高对足丝性状通径系数分别为0.515和0.508,全湿质量对足丝性状分别为0.417和0.520;建立了体尺性状、体质量性状对足丝直径和足丝茎直径的回归方程。 展开更多
关键词 紫贻贝(Mytilus galloprovincialis) 体尺性状 足丝 相关性分析 通径分析
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Glutathione S-transferase(GST) gene expression profiles in two marine bivalves exposed to BDE-47 and their potential molecular mechanisms 被引量:2
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作者 李斐 吴惠丰 +2 位作者 王清 李雪花 赵建民 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2015年第3期705-713,共9页
Glutathione S-transferases (GSTs) are phase II enzymes that facilitate the detoxification of xenobioties and play important roles in antioxidant defense. We investigated the expression patterns of seven Venerupis ph... Glutathione S-transferases (GSTs) are phase II enzymes that facilitate the detoxification of xenobioties and play important roles in antioxidant defense. We investigated the expression patterns of seven Venerupis philippinarum GSTs (VpGSTs) and four Mytilus galloprovincialis GSTs (MgGSTs) following exposure to BDE-47. Differential expressions of the seven VpGSTs and four MgGSTs transcripts were observed, with differences between the hepatopancreas and gills. Among these GSTs, the sigma classes (VpGSTS1, VpGSTS2, VpGSTS3, MgGST1, and MgGST3) were highly expressed in response to BDE-47 exposure, demonstrating their potential as molecular biomarkers for environmental biomonitoring studies. We obtained the three-dimensional crystal structures of VpGSTs and MgGSTs by homologous modeling. A model to elucidate the binding interactions between the ligands and receptors was defined by molecular docking, Hydrophobic and n were the most often observed interactions between BDE-47 and the GSTs. 展开更多
关键词 glutathione S-transferase (GST) Venerupis philippinarum Mytilus galloprovincialis 2 2' 4 4'-tetrabromodiphenyl ether (BDE-47) molecular docking BIOMARKER
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Assessment of Marine Pollution at Bay of Oran, Algeria
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作者 Karima Baghdad Abdelaziz Bendraoua Abdelkrim Mohammed Hasnaoui 《Journal of Water Resource and Protection》 2015年第13期1010-1016,共7页
This work aims to the assessment of marine pollution in the Bay of Oran, including zinc, copper, iron and lead. These toxic elements represent a real danger to living organisms. Many factors have increased the marine ... This work aims to the assessment of marine pollution in the Bay of Oran, including zinc, copper, iron and lead. These toxic elements represent a real danger to living organisms. Many factors have increased the marine pollution and marine traffic including the transport of hydrocarbons, industrial and domestic discharges and fishing activities, etc. This study shows essentially the bioconcentration of heavy metals in the species Mytilus galloprovincialis, these filter bivalves have a broad geographical distribution in our study area, so they allow us to better estimate the degree of pollution at the Bay of Oran. The study of changes in metal concentrations has marked some important points for, the four metallic elements are present in the flesh of mussels analyzed at the port of Oran. This study is part of assessment of pollution at the coast of western Algeria to protect the marine environment. 展开更多
关键词 WASTEWATER POLLUTION Chemical POLLUTION HEAVY METALS Mussels MYTILUS galloprovincialis Littora
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Differences in Trace Element Content between Non-Indigenous Farmed and Invasive Bivalve Mollusks of the South African Coast
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作者 Dmitry F. Pavlov Jacques Bezuidenhout +1 位作者 Marina V. Frontasyeva Zoya I. Goryainova 《American Journal of Analytical Chemistry》 2015年第11期886-897,共12页
contents of 23 trace elements (Sc, V, Cr, Mn, Fe, Co, Zn, As, Se, Br, Rb, Sr, Mo, Ag, Sb, I, Ba, La, Ce, Sm, Eu, Hf, Ta) were quantitatively determined in soft tissues and shells of mass non-indigenous bivalve mussels... contents of 23 trace elements (Sc, V, Cr, Mn, Fe, Co, Zn, As, Se, Br, Rb, Sr, Mo, Ag, Sb, I, Ba, La, Ce, Sm, Eu, Hf, Ta) were quantitatively determined in soft tissues and shells of mass non-indigenous bivalve mussels—farmed Pacific oysters (Crassostrea gigas) and farmed and wild invasive Mediterranean mussels (Mytilus galloprovincialis) at the Atlantic coast of South Africa. The study revealed that the contents of the majority of elements in the soft tissues of both species were higher than those in the shells. The tissues of wild invasive Mediterranean mussels contain higher levels of a range of trace elements comparing to farmed mussels. The tissues of Pacific oysters contain much higher levels of almost all elements studied compared to the tissues of Mediterranean mussels. Higher content of zinc in the mussels and oysters from Saldanha Bay may evidence anthropogenic pollution of the bay’s ecosystem by this metal, which necessitates continued monitoring of levels of potentially toxic metals. Both alien species, and especially Pacific oysters, may serve as reliable biomonitors for trace elements in marine ecosystems. Both species are rich in essential elements and provide nutritionally-valuable seafoods. 展开更多
关键词 INVASIVE BIVALVE Mollusks Chemical Composition Crassostrea GIGAS MYTILUS galloprovincialis Aquaculture Water Quality South Africa
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Interactions between natural biofilm,substratum surface wettability,and mussel plantigrade settlement
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作者 YANG JinLong GUO XingPan +4 位作者 DING DeWen GAO Wei HUANG DaoFen CHEN YuRu LIANG Xiao 《Science China Earth Sciences》 SCIE EI CAS CSCD 2017年第2期382-390,共9页
Mytilus galloprovincialis is a major fouling organism in the inter-tidal zone.However,the interactions between M.galloprovincialis plantigrade settlement,biofilm characteristics,and surface wettability remains unknown... Mytilus galloprovincialis is a major fouling organism in the inter-tidal zone.However,the interactions between M.galloprovincialis plantigrade settlement,biofilm characteristics,and surface wettability remains unknown.Here,we examined M.galloprovincialis plantigrade settlement responses to marine biofilms(BFs)on surfaces of varying wettability.No significant difference in mussel settlement was observed on young BFs(7 d)on surfaces of differing wettability;while settlement decreased on older BFs(14,21,and 28 d)formed on low compared to high wettability surfaces.Surface wettability affected BF characteristics.The standardized harmonic mean and water contact angles values were not correlated with diatom density and chlorophyll a concentration,but were correlated with bacterial density,dry weight,and thickness.Denaturing gradient gel electrophoresis revealed that bacterial community structure differed on BFs on surfaces of varying wettability.Thus,surface wettability affects biofilm characteristics,and the subsequent changes in BF characteristics may be responsible for the variation in biofilm-inducing activity of M.galloprovincialis plantigrade settlement. 展开更多
关键词 Mytilus galloprovincialis Plantigrade settlement Biofilms Surface wettability Bacterial community
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