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https://www.readbyqxmd.com/read/28527895/suppression-of-pmrab11-inhibits-yhv-infection-in-penaeus-monodon
#1
Akechai Kongprajug, Sakol Panyim, Chalermporn Ongvarrasopone
Yellow head virus (YHV) is one of the most serious pathogens that causes worldwide shrimp production loss. It enters the cells via clathrin-mediated endocytosis and utilizes small GTPase Rab proteins such as PmRab5 and PmRab7 for intracellular trafficking. In this study, molecular cloning and functional analysis of Rab11 during YHV infection were investigated. PmRab11 cDNA was cloned by Rapid amplification of cDNA ends (RACEs). It contained two forms of sizes 1200 and 1050 bp distinct at the 5' UTR. The coding region of PmRab11 was 645 bp, encoding 214 amino acids...
May 17, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28526117/the-efficiency-of-combined-coagulant-and-ballast-to-remove-harmful-cyanobacterial-blooms-in-a-tropical-shallow-system
#2
Marcela Miranda, Natália Noyma, Felipe S Pacheco, Leonardo de Magalhães, Ernani Pinto, Suzan Santos, Maria Fernanda A Soares, Vera L Huszar, Miquel Lürling, Marcelo M Marinho
We tested the hypothesis that a combination of coagulant and ballast could be efficient for removal of positively buoyant harmful cyanobacteria in shallow tropical waterbodies, and will not promote the release of cyanotoxins. This laboratory study examined the efficacy of coagulants [polyaluminium chloride (PAC) and chitosan (made of shrimp shells)] alone, and combined with ballast (lanthanum modified bentonite, red soil or gravel) to remove the natural populations of cyanobacteria collected from a shallow eutrophic urban reservoir with alternating blooms of Cylindrospermopsis and Microcystis...
May 2017: Harmful Algae
https://www.readbyqxmd.com/read/28525787/metals-in-the-scheldt-estuary-from-environmental-concentrations-to-bioaccumulation
#3
Evy Van Ael, Ronny Blust, Lieven Bervoets
To investigate the relationship between metal concentrations in abiotic compartments and in aquatic species, sediment, suspended matter and several aquatic species (Polychaeta, Oligochaeta, four crustacean species, three mollusc species and eight fish species) were collected during three seasons at six locations along the Scheldt estuary (the Netherlands-Belgium) and analysed on their metal content (Ag, Cd, Co, Cr, Cu, Ni, Pb, Zn and the metalloid As). Sediment and biota tissue concentrations were significantly influenced by sampling location, but not by season...
May 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28523918/current-status-of-viral-diseases-in-indian-shrimp-aquaculture
#4
G M Tandel, K Riji John, M Rosalind George, M J Prince Jeyaseelan
The intensification of aquaculture has been unique in showing the overwhelming changes in global food production in the last 100 years. Presently, it is playing a vital role in the economies of several countries. Conversely, it is also to be noted that the progression of aquaculture has been the foundation of anthropogenic alteration of a gigantic hierarchy and hence not astonishingly, it resulted in spread and emergence of an increasing group of new unknown diseases. In India, Penaeus monodon, black tiger shrimp was previously the foremost-cultivated shrimp species...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28522842/cryo-electron-microscopy-structure-of-the-macrobrachium-rosenbergii-nodavirus-capsid-at-7-angstroms-resolution
#5
Kok Lian Ho, Chare Li Kueh, Poay Ling Beh, Wen Siang Tan, David Bhella
White tail disease in the giant freshwater prawn Macrobrachium rosenbergii causes significant economic losses in shrimp farms and hatcheries and poses a threat to food-security in many developing countries. Outbreaks of Macrobrachium rosenbergii nodavirus (MrNV), the causative agent of white tail disease (WTD) are associated with up to 100% mortality rates. There are no interventions available to treat or prevent MrNV disease however. Here we show the structure of MrNV virus-like particles (VLPs) produced by recombinant expression of the capsid protein, using cryogenic electron microscopy...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522707/draft-genome-sequence-of-the-luminescent-strain-vibrio-campbellii-lb102-isolated-from-a-black-tiger-shrimp-penaeus-monodon-broodstock-rearing-system
#6
Sujeet Kumar, Ashok Kumar Jangam, V Akhil, Vidya Rajendran, Vinaya Kumar Katneni, J Joseph Sahaya Rajan, Monendra Grover, Viswas Konasagara Nagaleekar, S V Alavandi, K K Vijayan
We report here the genome sequence of Vibrio campbellii LB102, isolated from the broodstock rearing system of a shrimp hatchery in India. Sequence analysis revealed the presence of effector toxins of the type III (YopT, sharing 39% identity with Yersinia pestis) and type VI (VgrG-3 and hemolysin coregulated protein of V. cholerae) secretion systems.
May 18, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28522419/effects-of-stocking-density-of-the-white-shrimp-litopenaeus-vannamei-boone-on-immunities-antioxidant-status-and-resistance-against-vibrio-harveyi-in-a-biofloc-system
#7
Gang Liu, Songming Zhu, Dezhao Liu, Xishan Guo, Zhangying Ye
Determining optimum stocking density of the white shrimp Litopenaeus vannamei (Boone) is a big concern for shrimp farmers. However, few studies have assessed the influence of stocking density on the antioxidant status, immunology, digestive enzyme activities, and growth performance of white shrimp in biofloc systems. In this study, these parameters of white shrimp in a biofloc system were compared at three stocking densities: 300 orgs m(-3) as low stocking density (LD), 400 orgs m(-3) as medium stocking density (MD), and 500 orgs m(-3) as high stocking density (HD)...
May 15, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28521385/-ziziphus-oxyphylla-ethnobotanical-ethnopharmacological-and-phytochemical-review
#8
REVIEW
Rizwan Ahmad, Niyaz Ahmad, Atta Abbas Naqvi
ETHNOPHARMACOLOGICAL RELEVANCE: Ziziphus oxyphylla (ZO) is distributed mainly in tropic and warm temperate regions in the world. Pakistan owns six (06) indigenous species of genus Ziziphus out of which ZO is widely used for traditional treatment of different ailments such as diabetes, jaundice and liver diseases. AIM OF THE STUDY: The present review aims to provide in-depth and comprehensive literature overview, regarding botanical, chemical and biological characteristics of the plant alongwith phytochemical isolation and mechanistic studies to support its folklore and traditional uses...
May 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28515421/comparative-transcriptome-analysis-of-rimicaris-sp-reveals-novel-molecular-features-associated-with-survival-in-deep-sea-hydrothermal-vent
#9
Jian Zhang, Qing-Lei Sun, Zhen-Dong Luan, Chao Lian, Li Sun
Shrimp of the family Alvinocarididae are the predominant megafauna of deep-sea hydrothermal vents. However, genome information on this family is currently unavailable. In the present study, by employing Illumina sequencing, we performed the first de novo transcriptome analysis of the gills of the shrimp Rimicaris sp. from the hydrothermal vent in Desmos, Manus Basin. The analysis was conducted in a comparative manner with the shrimp taken directly from the vent (GR samples) and the shrimp that had been maintained for ten days under normal laboratory condition (mGR samples)...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28515237/increasing-the-illumination-slowly-over-several-weeks-protects-against-light-damage-in-the-eyes-of-the-crustacean-mysis-relicta
#10
Martta L M Viljanen, Noora E Nevala, Cecilia L Calais-Granö, K Magnus W Lindström, Kristian Donner
The eyes of two glacial-relict populations of opossum shrimp Mysis relicta inhabiting the different photic environments of a deep, dark-brown freshwater lake and a variably lit bay of the Baltic Sea differ in their susceptibility to functional depression from strong light exposures. The lake population is much more vulnerable than the sea population. We hypothesized that the difference reflects physiological adaptation mechanisms operating on long time scales rather than genetically fixed differences between the populations...
May 17, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28514941/effects-of-marker-density-and-population-structure-on-the-genomic-prediction-accuracy-for-growth-trait-in-pacific-white-shrimp-litopenaeus-vannamei
#11
Quanchao Wang, Yang Yu, Jianbo Yuan, Xiaojun Zhang, Hao Huang, Fuhua Li, Jianhai Xiang
BACKGROUND: Due to the great advantages in selection accuracy and efficiency, genomic selection (GS) has been widely studied in livestock, crop and aquatic animals. Our previous study based on one full-sib family of Litopenaeus vannamei (L. vannamei) showed that GS was feasible in penaeid shrimp. However, the applicability of GS might be influenced by many factors including heritability, marker density and population structure etc. Therefore it is necessary to evaluate the major factors affecting the prediction ability of GS in shrimp...
May 17, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28514648/determination-of-fenobucarb-residues-in-animal-and-aquatic-food-products-using-liquid-chromatography-tandem-mass-spectrometry-coupled-with-a-quechers-extraction-method
#12
Weijia Zheng, Jin-A Park, Dan Zhang, A M Abd El-Aty, Seong-Kwan Kim, Sang-Hyun Cho, Jeong-Min Choi, Jae-Han Shim, Byung-Joon Chang, Jin-Suk Kim, Ho-Chul Shin
A modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction method coupled with liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI(+)/MS-MS) was developed for quantification of fenobucarb residues in animal food products, such as porcine muscle, egg, and whole milk, and aquatic food products, such as eel, flatfish, and shrimp. Acetonitrile with the addition of 0.1% trifluoroacetic acid was employed as an extraction solvent and was compared with acetonitrile alone and 0...
May 10, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28513335/tio2-uv-assisted-rhodamine-b-degradation-putative-pathway-and-identification-of-intermediates-by-uplc-ms
#13
Tahir Rasheed, Muhammad Bilal, Hafiz M N Iqbal, Syed Zakir Hussain Shah, Hongbo Hu, Xuehong Zhang, Yongfeng Zhou
The present study was designed to evaluate the photocatalytic degradation of Rhodamine B (Rh-B) in a self-assembled TiO2 assisted system under UV light irradiation. Chemical oxygen demand (COD), total organic carbon (TOC), and high-performance liquid chromatography (HPLC) analyses confirmed the elevated Rh-B degradation level. A stepwise meticulous breakdown pathway based on the ultra-performance liquid chromatography coupled with electrospray ionization mass spectrometry (UPLC-MS) is proposed. Results demonstrated that the degradation of Rh-B mainly occurred via N-de-ethylation process, and N-de-ethylated intermediate products were further oxidized into acids and alcohols...
May 17, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28512346/cryptic-diversity-in-the-japanese-mantis-shrimp-oratosquilla-oratoria-crustacea-squillidae-allopatric-diversification-secondary-contact-and-hybridization
#14
Jiao Cheng, Zhong-Li Sha
Mounting evidence of cryptic species in the marine realm emphasizes the necessity to thoroughly revise our current perceptions of marine biodiversity and species distributions. Here, we used mitochondrial cytochrome oxidase subunit I (mtDNA COI) and nuclear ribosomal internal transcribed spacer (nrDNA ITS) to investigate cryptic diversity and potential hybridization in the Japanese mantis shrimp Oratosquilla oratoria in the Northwestern (NW) Pacific. Both mitochondrial and nuclear gene genealogies revealed two cryptic species in this morphotaxon, which was further confirmed by extensive population-level analyses...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28512288/lactic-acid-bacteria-specific-induction-of-cd4-foxp3-t-cells-ameliorates-shrimp-tropomyosin-induced-allergic-response-in-mice-via-suppression-of-mtor-signaling
#15
Linglin Fu, Jixiang Peng, Shushu Zhao, Yan Zhang, Xiurong Su, Yanbo Wang
The beneficial effects of probiotics have been described in allergic sensitization and diseases; however, many questions remain unanswered, such as characteristics of the most effective strains in modulation of allergic responses and how orally administered probiotics affect the systemic immune system. In the present work, oral administration of five lactic acid bacteria strains showed variable effects on protection against the allergic reaction in a mouse model of food allergy to shrimp tropomyosin (ST). The most effective anti-allergic strain, Bacillus coagulans 09...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28511808/astaxanthin-from-shrimp-efficiently-modulates-oxidative-stress-and-allied-cell-death-progression-in-mcf-7-cells-treated-synergistically-with-%C3%AE-carotene-and-lutein-from-greens
#16
Poorigali Raghavendra-Rao Sowmya, Bangalore Prabhashankar Arathi, Kariyappa Vijay, Vallikannan Baskaran, Rangaswamy Lakshminarayana
This study investigated the synergistic efficacy of keto-carotenoid astaxanthin (AST, from shrimp) plus hydrocarbon (β-carotene, BC) and hydroxyl (lutein, L) carotenoids (from greens) on molecular events in MCF-7 cells. MCF-7 cells were treated with either of carotenoid (20 μM, AST or BC or L) separately or the mixture of them (an equimolar concentration of carotenoids mixture, CM) or saponified carotenoid extract from shrimp (SSCE) for 48 h and analyzed cellular uptake, cytotoxicity, and apoptosis. The IC50 and combination-index values of AST co-treatment with a lower concentration of BC and L (5 μM) exhibited enhanced cytotoxicity and oxidative stress as compared with individual carotenoids or SSCE...
May 13, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28508952/identification-of-sex-determining-loci-in-pacific-white-shrimp-litopeneaus-vannamei-using-linkage-and-association-analysis
#17
Yang Yu, Xiaojun Zhang, Jianbo Yuan, Quanchao Wang, Shihao Li, Hao Huang, Fuhua Li, Jianhai Xiang
The Pacific white shrimp Litopenaeus vannamei is a predominant aquaculture shrimp species in the world. Like other animals, the L. vannamei exhibited sexual dimorphism in growth trait. Mapping of the sex-determining locus will be very helpful to clarify the sex determination system and further benefit the shrimp aquaculture industry towards the production of mono-sex stocks. Based on the data used for high-density linkage map construction, linkage-mapping analysis was conducted. The sex determination region was mapped in linkage group (LG) 18...
May 16, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/28507822/estimating-the-effect-of-burrowing-shrimp-on-deep-sea-sediment-community-oxygen-consumption
#18
Daniel Leduc, Conrad A Pilditch
Sediment community oxygen consumption (SCOC) is a proxy for organic matter processing and thus provides a useful proxy of benthic ecosystem function. Oxygen uptake in deep-sea sediments is mainly driven by bacteria, and the direct contribution of benthic macro- and mega-infauna respiration is thought to be relatively modest. However, the main contribution of infaunal organisms to benthic respiration, particularly large burrowing organisms, is likely to be indirect and mainly driven by processes such as feeding and bioturbation that stimulate bacterial metabolism and promote the chemical oxidation of reduced solutes...
2017: PeerJ
https://www.readbyqxmd.com/read/28507815/a-new-molecular-diagnostic-tool-for-surveying-and-monitoring-triops-cancriformis-populations
#19
Graham S Sellers, Larry R Griffin, Bernd Hänfling, Africa Gómez
The tadpole shrimp, Triops cancriformis, is a freshwater crustacean listed as endangered in the UK and Europe living in ephemeral pools. Populations are threatened by habitat destruction due to land development for agriculture and increased urbanisation. Despite this, there is a lack of efficient methods for discovering and monitoring populations. Established macroinvertebrate monitoring methods, such as net sampling, are unsuitable given the organism's life history, that include long lived diapausing eggs, benthic habits and ephemerally active populations...
2017: PeerJ
https://www.readbyqxmd.com/read/28505172/increased-nucleoside-diphosphate-kinase-activity-induces-white-spot-syndrome-virus-infection-in-litopenaeus-vannamei
#20
Peng-Fei Liu, Qing-Hui Liu, Yin Wu, Jie Huang
Nucleoside diphosphate kinase (NDK), which has the same sequence as oncoprotein (OP) in humans, can induce nucleoside triphosphates in DNA replication by maintenance of the deoxynucleotide triphosphate (dNTP's) and is known to be regulated by viral infection in the shrimp Litopenaeus vannamei. This paper describes the relationship between NDK and white spot syndrome virus (WSSV) infection. The recombinant NDK was produced by a prokaryotic expression system. WSSV copy numbers and mRNA levels of IE1 and VP28 were significantly increased in shrimp injected with recombinant NDK at 72 h after WSSV infection...
2017: PloS One
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