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https://www.readbyqxmd.com/read/27924858/transcriptomic-characterization-and-curation-of-candidate-neuropeptides-regulating-reproduction-in-the-eyestalk-ganglia-of-the-australian-crayfish-cherax-quadricarinatus
#1
Tuan Viet Nguyen, Scott F Cummins, Abigail Elizur, Tomer Ventura
The Australian redclaw crayfish (Cherax quadricarinatus) has recently received attention as an emerging candidate for sustainable aquaculture production in Australia and worldwide. More importantly, C. quadricarinatus serves as a good model organism for the commercially important group of decapod crustaceans as it is distributed worldwide, easy to maintain in the laboratory and its reproductive cycle has been well documented. In order to better understand the key reproduction and development regulating mechanisms in decapod crustaceans, the molecular toolkit available for model organisms such as C...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27923710/trypsin-and-n-aminopeptidase-apn-activities-in-the-hepatopancreas-of-an-intertidal-euryhaline-crab-biochemical-characteristics-and-differential-modulation-by-histamine-and-salinity
#2
Maria Soledad Michiels, Juana Cristina Del Valle, Alejandra A López Mañanes
No studies are available about biochemical characteristics and modulation (i.e. by endogenous and/or environmental cues) of trypsin (a key digestive endoprotease) in hepatopancreas of intertidal euryhaline crabs neither on the possible concomitant modulation of key ectoproteases such as aminopeptidase-N (APN) involved in final steps of protein digestion. Furthermore, nothing is still known in decapods crustaceans about the role of histamine as primary chemical messenger for modulation of main components of digestive process (i...
December 3, 2016: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/27923671/a-core-component-of-the-cul4-ubiquitin-ligase-complexes-ddb1-regulates-spermatogenesis-in-the-chinese-mitten-crab-eriocheir-sinensis
#3
AnYu Fang, XueJie Li, YuanLi Wang, DiYue Pan, Qun Wang
Studies in mammals have shown that damaged DNA-binding protein 1 (DDB1) is a multifunctional protein that recognizes UV-induced DNA lesions and activates nucleotide excision repair process, and could also be a linker protein for Cullin4 in ubiquitination to regulate cell cycle progression. However, there are few studies of DBB1 in crustaceans. In this study, a cDNA representing the DDB1 gene from Eriocheir sinensis (Es-DDB1) was cloned successfully. The full length Es-DDB1 cDNA comprises 4871 nucleotides, and encodes an open-reading frame (ORF) of 1137 amino acid residues...
December 3, 2016: Gene
https://www.readbyqxmd.com/read/27918468/transcriptome-analysis-of-the-tadpole-shrimp-triops-longicaudatus-by-illumina-paired-end-sequencing-assembly-annotation-and-marker-discovery
#4
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/27917321/effects-of-arachidonic-acid-supplementation-in-maturation-diet-on-female-reproductive-performance-and-larval-quality-of-giant-river-prawn-macrobrachium-rosenbergii
#5
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/27917055/distribution-and-species-identification-in-the-crustacean-isopod-genus-dynamene-leach-1814-along-the-north-east-atlantic-black-sea-axis
#6
Pedro E Vieira, Henrique Queiroga, Filipe O Costa, David M Holdich
Sphaeromatid isopods, such as Dynamene, are common and abundant members of the invertebrate fauna of littoral and shallow sublittoral substrates. Six species of Dynamene occur in the northern hemisphere. Only two species exist outside this range, in Australia. The distribution of the various species in the NE Atlantic-Black Sea axis has been controversial due to the difficulty in the identification of the different species. This has led to inaccurate records of their distribution, ultimately generating uncertain or faulty assessments on the biodiversity of these habitats...
2016: ZooKeys
https://www.readbyqxmd.com/read/27916937/the-emergence-and-epidemiology-of-haff-disease-in-china
#7
REVIEW
Thomas Y K Chan
Haff disease is a rare syndrome of unexplained myalgia and rhabdomyolysis occurring within 24 h of consumption of certain types of cooked freshwater fish or crustacean. It is caused by a yet unidentified heat-stable toxin. In the present review of published case studies and official press releases, the main objective is to report the emergence and epidemiology of Haff disease in China. Haff disease first occurred in Beijing in 2000 and in Lianzhou and Liannan, Guangdong Province in 2009. Subsequent outbreaks mostly occurred in the Jiangsu Province-Nanjing, Yangzhou, Huai'an, and Yancheng...
December 1, 2016: Toxins
https://www.readbyqxmd.com/read/27916863/lipid-composition-of-oil-extracted-from-wasted-norway-lobster-nephrops-norvegicus-heads-and-comparison-with-oil-extracted-from-antarctic-krill-euphasia-superba
#8
Amaya Albalat, Lauren E Nadler, Nicholas Foo, James R Dick, Andrew J R Watts, Heather Philp, Douglas M Neil, Oscar Monroig
In the UK, the Norway lobster (Nephrops norvegicus) supports its most important shellfish fishery. Nephrops are sold either whole, or as "tails-only" for the scampi trade. In the "tailing" process, the "head" (cephalothorax) is discarded as waste. A smaller crustacean species, the Antarctic krill Euphasia superba, represents an economically valuable industry, as its extractable oil is sold as a human dietary supplement. The aim of this study was to determine the amount and composition of the oil contained in discarded Nephrops heads and to compare its composition to the oil extracted from krill...
December 1, 2016: Marine Drugs
https://www.readbyqxmd.com/read/27916691/therapeutic-effects-of-gold-nanoparticles-synthesized-using-musa-paradisiaca-peel-extract-against-multiple-antibiotic-resistant-enterococcus-faecalis-biofilms-and-human-lung-cancer-cells-a549
#9
S Vijayakumar, B Vaseeharan, B Malaikozhundan, N Gopi, P Ekambaram, R Pachaiappan, P Velusamy, K Murugan, G Benelli, R Suresh Kumar, M Suriyanarayanamoorthy
Botanical-mediated synthesis of nanomaterials is currently emerging as a cheap and eco-friendly nanotechnology, since it does not involve the use of toxic chemicals. In the present study, we focused on the synthesis of gold nanoparticles using the aqueous peel extract of Musa paradisiaca (MPPE-AuNPs) by green approach following a facile and cheap fabrication process. The green synthesized MPPE-AuNPs were bio-physically characterized by UV-Vis spectroscopy, FTIR, XRD, TEM, Zeta potential and EDX. MPPE-AuNPs were crystalline in nature, spherical to triangular in shape, with particle size ranged within 50 nm...
December 1, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27913027/potential-effects-of-tio2-nanoparticles-and-ticl4-in-saltwater-to-phaeodactylum-tricornutum-and-artemia-franciscana
#10
D Minetto, G Libralato, A Marcomini, A Volpi Ghirardini
Nanosized titanium dioxide (nTiO2) is widespread in many commercial products and several authors investigated its ecotoxicity effects focusing mainly on freshwater environments. Data on saltwater species are still lacking or present contradicting results. We compared for the first time the toxicity of TiCl4 and nTiO2 considering standard toxicity tests with microalgae Phaeodactylum tricornutum (growth inhibition test, 1.8-90mg/L) and crustacean Artemia franciscana (mortality test, 0.5-64mg/L). For A. franciscana, two alternative scenarios were considered beside standard protocol: i) darkness; and ii) starvation...
November 30, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27912081/combined-effect-of-temperature-and-ammonia-on-molecular-response-and-survival-of-the-freshwater-crustacean-gammarus-pulex
#11
Y Henry, C Piscart, S Charles, H Colinet
Freshwater ecosystems are experiencing mounting pressures from agriculture, urbanization, and climate change, which could drastically impair aquatic biodiversity. As nutrient inputs increase and temperatures rise, ammonia (NH3) concentration is likely to be associated with stressful temperatures. To investigate the interaction between NH3 and temperature on aquatic invertebrate survival, we performed a factorial experiment on the survival and molecular response of Gammarus pulex, with temperature (10, 15, 20, and 25°C) and NH3 (0, 0...
November 29, 2016: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27905665/multiple-paternity-in-a-wild-population-of-armadillidium-vulgare-influence-of-infection-with-wolbachia
#12
V Valette, S Durand, N Bech, F Grandjean, S Beltran-Bech
Female multiple mating has been extensively studied to understand how nonobvious benefits, generally thought to be of genetic nature, could overcome heavy costs such as an increased risk of infection during mating. However, the impact of infection itself on multiple mating has rarely been addressed. The interaction between the bacterium Wolbachia and its terrestrial crustacean host, Armadillidium vulgare, is a relevant model to investigate this question. In this association, Wolbachia is able to turn genetic males into functional females (i...
November 4, 2016: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/27903451/fatty-acid-synthase-plays-a-positive-role-in-shrimp-immune-responses-against-vibrio-parahaemolyticus-infection
#13
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/27903421/-210-po-in-the-marine-biota-of-korean-coastal-waters-and-the-effective-dose-from-seafood-consumption
#14
S H Kim, G H Hong, H M Lee, B E Cho
The activity concentrations of (210)Po were determined in plankton and selected species of macroalgae, crustaceans, molluscs, and fish from Korean coastal waters to understand (210)Po distribution in these trophic levels and to assess the effective dose of (210)Po from seafood ingested by the average Korean. The activity concentration of (210)Po in macroalgae, mixed plankton, anchovy (whole body), abalone muscle, and abalone viscera was 0.97-1.43, 32-137, 59-392, 2.93 ± 0.86, and 1495 ± 484 Bq kg(-1) (w...
November 28, 2016: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/27902896/the-efficacy-of-chitosan-adjuvanted-mycoplasma-gallisepticum-bacterin-in-chickens
#15
Arithat Limsatanun, Jiroj Sasipreeyajan, Somsak Pakpinyo
Mycoplasma gallisepticum (MG) is one of the major pathogens that cause respiratory signs in the poultry industry. To control MG infection, vaccination is the useful procedure. In this study, MG vaccine was developed by using the local Thai MG isolate (AHRL 20/52). Chitosan, a polysaccharide adjuvant derived from crustaceans, has been successfully used in various vaccines. The objectives of this study were to prepare MG bacterins by using chitosan, serving as an adjuvant, to determine protection against the field Thai MG isolate and to evaluate tissue reaction at the injection site...
December 2016: Avian Diseases
https://www.readbyqxmd.com/read/27902293/colwellia-marinimaniae-sp-nov-a-hyperpiezophilic-species-isolated-from-an-amphipod-within-the-challenger-deep-mariana-trench
#16
Masataka Kusube, Than S Kyaw, Kumiko Tanikawa, Roger A Chastain, Kevin Hardy, James Cameron, Douglas H Bartlett
An obligately piezophilic strain was isolated from an amphipod crustacean obtained in the Challenger Deep region of the Mariana Trench during the DEEPSEA CHALLENGE expedition. The strain, MTCD1T, grew at extremely high hydrostatic pressures, with a growth range of 80-140 MPa (optimum: 120 MPa) at 6°C. Phylogenetic analyses based on the 16S rRNA gene sequence indicates that it is closely affiliated with the genus Colwellia. Comparative 16S rRNA gene sequence analyses revealed 95.7%, 95.5%, and 95.2% similarity to Colwellia maris ABE-1T, Colwellia piezophila Y233GT, and Colwellia psychrerythraea 34HT, respectively...
November 16, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27896558/h3k9ac-involved-in-the-decondensation-of-spermatozoal-nuclei-during-spermatogenesis-in-chinese-mitten-crab-eriocheir-sinensis
#17
Genliang Li, Xianjiang Kang, Shumei Mu, Mingshen Guo, Shiwen Huang, Qinna Chen, Song Nong, Xiaomin Huang, Hongliu Hu, Ke Sun
As a well-known crustacean model species, the Chinese mitten crab Eriocheir sinensis presents spermatozoa with decondensed DNA. Our aim was to analyze structural distribution of the histone H3 and its acetylated lysine 9 (H3K9ac) during spermatogenesis for the mechanistic understanding of the nuclear decondensation of the spermatozoa in E. sinensis. Using specific antibodies, we followed the structural distribution and acetylated lysine 9 of the histone H3 during spermatogenesis, especially spermiogenesis, of E...
November 28, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27894826/artemin-protects-cells-and-proteins-against-oxidative-and-salt-stress
#18
Zeinab Takalloo, Reza H Sajedi, Saman Hosseinkhani, Taghi Moazzenzade
Artemin is an abundant thermostable protein in Artemia encysted embryos under environmental stresses. It is confirmed that high regulatory expression of artemin is relevant to stress resistance in this crustacean. Here, the protective role of artemin from Artemia urmiana has been investigated on survival of bacterial cells under salt and oxidative shocks. Also, for continuous monitoring of the effect of artemin in prevention of proteins aggregation/inactivation, co-expression of artemin and luciferase (as an intracellular reporter) in bacterial cells was performed...
November 25, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27890715/effects-of-atrazine-on-ovarian-growth-in-the-estuarine-crab-neohelice-granulata
#19
G R Silveyra, I S Canosa, E M Rodríguez, D A Medesani
Atrazine, a herbicide that is intensively used in Argentina, was assayed to evaluate the alteration of reproduction in a wild species of crustaceans. Adult females of the estuarine crab Neohelice granulata were exposed to formulated atrazine during the 3-month pre-reproductive period. Three atrazine concentrations (0.03, 0.3 and 3mg/L) were assayed, together with a water dilution control. At the end of the exposure period, several variables concerning the energetic status of animals were measured, such as weight gain, glycemia, and energy reserves in both muscle and hepatopancreas...
November 24, 2016: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/27890285/invertebrate-oncology-diseases-diagnostics-and-treatment
#20
REVIEW
Alisa L Newton, Gregory A Lewbart
Neoplasia is a documented occurrence across invertebrate taxa, but challenges remain with regard to tumor diagnosis and treatment. Literature reports of neoplasia are frequent in mollusks and insects, infrequent in Cnidaria and crustaceans, and are yet to be documented in Porifera and echinoderms. A significant contribution could be made by veterinary practitioners documenting and treating neoplasms in invertebrates. Traditional methods of veterinary diagnosis are encouraged, but the anatomy and tissue biology of each invertebrate species need to be considered...
January 2017: Veterinary Clinics of North America. Exotic Animal Practice
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