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https://www.readbyqxmd.com/read/27925014/abundance-and-spatial-temporal-distribution-of-macrobrachium-surinamicum-holthuis-1948-palaemonidae-in-the-amazon-estuary-north-of-brazil
#1
D V Cavalcante, B S Bentes, J M Martinelli-Lemos
Macrobrachium surinamicum is a small shrimp that inhabits rivers of low salinity. It is mainly caught as bycatch in Amazon shrimp Macrobrachium amazonicum fisheries, which is widely exploited by artisanal fisheries for food and economic needs of the riverside population. This study aimed to characterize the spatial and temporal distribution of the freshwater shrimp M. surinamicum in the Guajará Bay and on Mosqueiro Island, correlating the abundance of this species with abiotic factors (temperature and salinity)...
December 1, 2016: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/27921385/-practical-electrospinning-of-biopolymers-in-ionic-liquids
#2
Julia L Shamshina, Oleksandra Zavgorodnya, Jonathan R Bonner, Gabriela Gurau, Thomas Di Nardo, Robin D Rogers
To address the need to scale up technologies for electrospinning of biopolymers from ionic liquids to practical volumes, a setup for the multi-needle electrospinning of chitin using the ionic liquid 1-ethyl-3-methylimidazolium acetate, [C2 mim]-[OAc], was designed, built, and demonstrated. Materials with controllable and high surface area were prepared at the nanoscale using ionic-liquid solutions of high-molecular-weight chitin extracted with the same ionic liquid directly from shrimp shells.
December 6, 2016: ChemSusChem
https://www.readbyqxmd.com/read/27919648/antiviral-action-of-the-antimicrobial-peptide-alfpm3-from-penaeus-monodon-against-white-spot-syndrome-virus
#3
Thanachai Methatham, Pakpoom Boonchuen, Phattarunda Jaree, Anchalee Tassanakajon, Kunlaya Somboonwiwat
The anti-lipopolysaccharide factor isoform 3 (ALFPm3), the antimicrobial peptide from Penaeus monodon, possesses antibacterial and antiviral activities. Although the mechanism of action of ALFPm3 against bacteria has been revealed but its antiviral mechanism is still unclear. To further study how the ALFPm3 exhibits antiviral activity against the enveloped virus, white spot syndrome virus (WSSV), the ALFPm3-interacting proteins from WSSV were sought and identified five ALFPm3-interacting proteins, WSSV186, WSSV189, WSSV395, WSSV458, and WSSV471...
December 2, 2016: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/27918999/effect-of-silver-nanoparticles-on-the-metabolic-rate-hematological-response-and-survival-of-juvenile-white-shrimp-litopenaeus-vannamei
#4
Karla Juarez-Moreno, Claudio Humberto Mejía-Ruiz, Fernando Díaz, Horacio Reyna-Verdugo, Ana Denisse Re, Edgar F Vazquez-Felix, Edna Sánchez-Castrejón, Josué D Mota-Morales, Alexey Pestryakov, Nina Bogdanchikova
White spot syndrome virus (WSSV) is highly lethal and contagious in shrimps; its outbreaks causes an economic crisis for aquaculture. Several attempts have been made to treat this disease; however, to date, there is no effective cure. Because of their antimicrobial activities, silver nanoparticles (AgNPs) are the most studied nanomaterial. Although the antiviral properties of AgNPs have been studied, their antiviral effect against viral infection in aquaculture has not been reported. The AgNPs tested herein are coated with polyvinylpyrrolidone (PVP) and possess multiple international certifications for their use in veterinary and human applications...
December 2, 2016: Chemosphere
https://www.readbyqxmd.com/read/27918468/transcriptome-analysis-of-the-tadpole-shrimp-triops-longicaudatus-by-illumina-paired-end-sequencing-assembly-annotation-and-marker-discovery
#5
Jiyeon Seong, Se Won Kang, Bharat Bhusan Patnaik, So Young Park, Hee Ju Hwang, Jong Min Chung, Dae Kwon Song, Mi Young Noh, Seung-Hwan Park, Gwang Joo Jeon, Hong Sik Kong, Soonok Kim, Ui Wook Hwang, Hong Seog Park, Yeon Soo Han, Yong Seok Lee
The tadpole shrimp (Triops longicaudatus) is an aquatic crustacean that helps control pest populations. It inhabits freshwater ponds and pools and has been described as a living fossil. T. longicaudatus was officially declared an endangered species South Korea in 2005; however, through subsequent protection and conservation management, it was removed from the endangered species list in 2012. The limited number of available genetic resources on T. longicaudatus makes it difficult to obtain valuable genetic information for marker-aided selection programs...
December 2, 2016: Genes
https://www.readbyqxmd.com/read/27917701/design-synthesis-mtt-assay-dna-interaction-studies-of-platinum-ii-complexes
#6
Miral V Lunagariya, Khyati P Thakor, Bhargav N Waghela, Foram U Vaidya, Chadramani Pathak, Mohan N Patel
The square planar Pt(II) complexes of the type [Pt(L(n))(Cl2)] (where L(n) = L(1-3) = thiophene-2-carboxamide derivatives and L(4-6) = thiophene-2-carbothioamide derivatives) have been synthesized and characterized by physicochemical and various spectroscopic studies. MIC method was employed to inference the antibacterial potency of complexes in reference to free ligands and metal salt. Characteristic binding constant (Kb) and binding mode of complexes with calf thymus DNA (CT-DNA) were determined using absorption titration (0...
December 4, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27917321/effects-of-arachidonic-acid-supplementation-in-maturation-diet-on-female-reproductive-performance-and-larval-quality-of-giant-river-prawn-macrobrachium-rosenbergii
#7
Chanpim Kangpanich, Jarunan Pratoomyot, Nisa Siranonthana, Wansuk Senanan
The giant river prawn (Macrobrachium rosenbergii) is one of the most farmed freshwater crustaceans in the world. Its global production has been stalling in the past decade due to the inconsistent quality of broodstock and hatchery-produced seeds. A better understanding of the role of nutrition in maturation diets will help overcome some of the production challenges. Arachidonic acid (20:4 n-6, ARA) is a fatty acid precursor of signaling molecules important for crustacean reproduction, prostaglandins E and F of the series II (PGE2 and PGF2α), and is often lacking in maturation diets of shrimp and prawns...
2016: PeerJ
https://www.readbyqxmd.com/read/27915028/catalytic-synthesis-of-%C3%AE-amino-chromone-phosphonates-and-their-antimicrobial-toxicity-and-potential-hiv-1-rt-inhibitors-based-on-silico-screening
#8
Abosede Oluwabukola Jaiyeola, K Anand, K Kasumbwe, M Ramesh, R M Gengan
The α-amino phosphonates exhibit a wide range of biological properties which create demand for simple and efficient synthetic routes of new molecules. In this study synthesis of a new series of derivatives of α-amino chromone phosphonates (ACPs) was reported using RhBT catalyst. The RhBT was first prepared by simply mixing boron nitride in a solution of rhodium acetate, under inert atmosphere for a week followed by filtration (yield: 92%). The catalyst can be re-used for up to four times and showed minimal loss of activity...
November 23, 2016: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/27914955/molecular-cloning-expression-and-functional-analysis-of-three-subunits-of-protein-phosphatase-2a-pp2a-from-black-tiger-shrimps-penaeus-monodon
#9
Chao Zhao, Yan Wang, Mingjun Fu, Lihua Qiu
Protein phosphatase 2A (PP2A) is a cellular serine-threonine (Ser/Thr) phosphatase that plays a crucial role in regulating most cellular functions. In the present study, the full-length cDNAs of three subunits of PmPP2A (PmPP2A-A, PP2A-B and PP2A-C) were cloned from Penaeus monodon, which are the first available for shrimps. Sequence analysis showed that PmPP2A-A, PmPP2A-B and PmPP2A-C encoded polypeptides of 591, 443, and 324 amino acids, respectively. The mRNAs of three subunits of PmPP2A were expressed constitutively in all tissues examined, and predominantly in the ovaries...
November 30, 2016: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/27914929/structured-additive-distributional-regression-for-analyzing-landings-per-unit-effort-in-fisheries-research
#10
Valeria Mamouridis, Nadja Klein, Thomas Kneib, Carmen Cadarso Suarez, Francesc Maynou
We analysed the landings per unit effort (LPUE) from the Barcelona trawl fleet targeting the red shrimp (Aristeus antennatus) using novel Bayesian structured additive distributional regression to gain a better understanding of the dynamics and determinants of variation in LPUE. The data set, covering a time span of 17 years, includes fleet-dependent variables (e.g. the number of trips performed by vessels), temporal variables (inter- and intra-annual variability) and environmental variables (the North Atlantic Oscillation index)...
November 30, 2016: Mathematical Biosciences
https://www.readbyqxmd.com/read/27903451/fatty-acid-synthase-plays-a-positive-role-in-shrimp-immune-responses-against-vibrio-parahaemolyticus-infection
#11
Hongliang Zuo, Jiefeng Gao, Jia Yuan, Hengwei Deng, Linwei Yang, Shaoping Weng, Jianguo He, Xiaopeng Xu
Fatty acid synthase (FAS) is an important enzyme that catalyzes the synthesis of fatty acids. In this study, the role of the FAS gene from pacific white shrimp Litopenaeus vannamei (LvFAS) in immune responses against Vibrio parahaemolyticus infection was studied. The expression of LvFAS could be up-regulated upon infection of V. parahaemolyticus and stimulation of lipopolysaccharide and poly (I:C). The promoter of LvFAS was predicted to harbor a NF-κB binding site and dual-luciferase reporter assays demonstrated that the NF-κB family proteins Relish, sRelish and Dorsal could activate the transcription of LvFAS...
November 27, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27901504/evaluation-of-medicinal-plants-and-colloidal-silver-efficiency-against-vibrio-parahaemolyticus-infection-in-litopenaeus-vannamei-cultured-at-low-salinity
#12
María Soledad Morales-Covarrubias, Noemí García-Aguilar, María Del Bolan-Mejía, Ana Carmela Puello-Cruz
In shrimp aquaculture, reduction in the use of synthetic antibiotics is a priority due to the high incidence of resistant bacteria (Vibrio) in the white shrimp Litopenaeus vannamei. An increasing number of studies show bactericidal activity of natural treatments in aquaculture. The effectiveness of neem (Azadirachta indica) and oregano (Lippia berlandieri) aqueous extracts and colloidal silver against V. parahaemolyticus were evaluated in low salinity shrimp culture. Results show that aqueous extracts of oregano and neem each present a minimum inhibitory concentration (MIC) of 62...
November 22, 2016: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/27898954/proposal-of-a-production-and-management-index-pmi-for-tilapia-farms
#13
A Muniesa, A L Rey-Castaño, I Ruiz-Zarzuela, M Guarín, C Iregui, I de Blas
Tilapia is one of the most important species in aquaculture; however, there is no available index to show the performance of a production unit. It is desirable to assess the productivity using indexes, such as the production and management index for shrimps and the European production efficacy factor for broilers. These indexes are based on data production: growth, survival, and feed conversion of a full production cycle. Taking into account these parameters, we propose a production and management index (PMI) for tilapia that is applicable for a specific period of the production cycle...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27891049/quantifying-the-seafood-consumption-patterns-of-recreational-anglers-in-charleston-and-berkeley-counties-south-carolina
#14
Matthew T Perkinson, Trevor D Faith, Grace M Vahey, John E Vena, Edith M Williams
This study was designed to provide self-reported data on the frequency of fish consumption and shellfish consumption in Charleston and Berkeley (CB) counties, South Carolina. While commercial fishing and recreational fishing have played an important role in the culture and history of the area, information on the specific patterns of consumption by recreational anglers has been previously unavailable. The pilot data presented here will help determine the feasibility of a large-scale survey of seafood consumption in coastal South Carolina...
2016: Environmental Health Insights
https://www.readbyqxmd.com/read/27888131/hsp70-and-hsp90-are-involved-in-shrimp-penaeus-vannamei-tolerance-to-ahpnd-causing-strain-of-vibrio-parahaemolyticus-after-non-lethal-heat-shock
#15
Wisarut Junprung, Premruethai Supungul, Anchalee Tassanakajon
Acute hepatopancreatic necrosis disease (AHPND) caused by Vibrio parahaemolyticus carrying toxin-producing plasmid, has led to severe mortalities in farmed penaeid shrimp throughout Asia. Previous studies reported that a non-lethal heat shock (NLHS) could enhance disease tolerance in aquatic animals. Here, we investigate whether the NLHS could enhance the survival of shrimp Penaeusvannamei upon challenge with an AHPND-causing strain of V. Parahaemolyticus (VPAHPND). Two NLHS conditions, acute and chronic NLHSs, were used...
November 22, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27887698/simultaneous-extraction-of-polycyclic-aromatic-hydrocarbons-through-the-complete-dissolution-of-solid-biological-samples-in-sodium-hydroxide-urea-thiourea-aqueous-solution
#16
Sedigheh Ale Mohammad, Kamal Ghanemi, Arash Larki
In order to precisely and simultaneously extract polycyclic aromatic hydrocarbons (PAHs) for measurement using a high performance liquid chromatography-fluorescence detector (HPLC-FL), a novel sample preparation method was developed. This method is based on the complete and fast dissolution of biological samples in a new non-alcoholic alkaline medium. A solution composed of NaOH/urea/thiourea at an optimized ratio was used for complete dissolution of approximately 0.25g dried fish samples within 20min. The proposed method was conducted at 10°C and under atmospheric pressure to obtain a stable and highly homogeneous solution, without the need for microwaves or any other apparatus...
December 9, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27884706/identification-and-functional-characterization-of-a-novel-sp%C3%A3-tzle-gene-in-litopenaeus-vannamei
#17
Kai Yuan, Feng-Hua Yuan, Shao-Ping Weng, Jian-Guo He, Yi-Hong Chen
Shrimp innate immunity is the first line of resistance against pathogenic bacteria. The Toll-like receptor (TLR)-NF-κB pathway is vital in this immunity process. In this study, a novel Spätzle gene (LvSpz4) of Litopenaeus vannamei was cloned and functionally characterized. The open reading frame of LvSpz4 was 918 bp, which encoded a putative protein with 305 amino acids. LvSpz4 was most expressed in the gills of L. vannamei. This expression was induced by Vibrio alginolyticus or Staphylococcus aureus infection or lipopolysaccharide stimulation...
November 21, 2016: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/27876960/characterization-and-control-of-symbiotic-bacillus-cereus-isolated-from-the-mid-gut-of-anopheles-subpictus-grassi
#18
Priyanka Mukhopadhyay, Soumendranath Chatterjee
An investigation was done to find out the role of gut bacterium on the larval development and survival of Anopheles subpictus, the vector responsible for the transmission of malaria. An. subpictus mosquitoes breed exclusively in stagnant water, including shrimp/fish ponds with high nutrient level. One bacterial strain (CX2) was isolated from the midgut of late third instar of mosquito larvae. The bacterial isolate was sensitive to recommended doses of tetracyclin (30 µg/disc), doxycycline (30 µg/disc), kanamycin (30 µg/disc), gentamycin (10 µg/disc), streptomycin (10 µg/disc), vancomycin (30 µg/disc), ofloxacin (5 µg/disc), levofloxacin (5 µg/disc), gatifloxacin (10 µg/disc), but resistant to ampicillin (10 µg/disc)...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27876935/occurrence-morphology-and-molecular-characterisation-of-bopyrid-parasite-epipenaeon-ingens-nobili-1906-isopoda-bopyridae
#19
Kanagasabapathy Sivasubramanian, Samuthirapandian Ravichandran, Ganapathy Rameshkumar, Narayanasamy Veerappan
Epipenaeon ingens occurs most commonly in Southeast Coast of India parasitized the penaeid shrimp. The present study provides the prevalence, morphological and molecular characterisation of E. ingens collected from the host Metapenaeopsis stridulans. In the present study highlights the significance of high prevalence and genetic diversity of E. ingens in M. stridulans. Intra specific analysis also revealed that E. ingens species detected in the present study can be easily distinguished from the other genospecies of bopyrids...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27876622/a-novel-c-type-lectin-in-the-black-tiger-shrimp-penaeus-monodon-functions-as-a-pattern-recognition-receptor-by-binding-and-causing-bacterial-agglutination
#20
Ratree Wongpanya, Panjana Sengprasert, Piti Amparyup, Anchalee Tassanakajon
C-type lectins are pattern recognition proteins that play important roles in innate immunity in invertebrates by mediating the recognition of pathogens. In this study, a novel C-type lectin gene, PmCLec, was cloned and characterized from the black tiger shrimp Penaeus monodon. The open reading frame of PmCLec is 657 bp in length. It encodes a predicted protein of 218 amino acids with a calculated molecular mass and an isoelectric point of 24086 Da and 4.67, respectively. Sequence analysis of PmCLec showed similarity to members of the C-type lectin gene superfamily...
November 19, 2016: Fish & Shellfish Immunology
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