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Loligo vulgaris

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https://www.readbyqxmd.com/read/27530149/diversity-of-apostome-ciliates-chromidina-spp-oligohymenophorea-opalinopsidae-parasites-of-cephalopods-of-the-mediterranean-sea
#1
Dhikra Souidenne, Isabelle Florent, Marc Dellinger, Jean Lou Justine, Mohamed Salah Romdhane, Hidetaka Furuya, Philippe Grellier
Chromidina spp. are enigmatic apostome ciliates (Oligohymenophorea, Opalinopsidae) that parasitise the renal and pancreatic appendages of cephalopods. Only four species have been described, among which only three have been formally named. No DNA sequence has been reported so far. To investigate Chromidina spp. diversity, we sampled cephalopods in the Mediterranean Sea off Tunis, Tunisia, and identified two distinct Chromidina spp. in two different host species: Loligo vulgaris and Sepia officinalis. From haematoxylin-stained slides, we described morphological traits for these parasitic species and compared them to previous descriptions...
2016: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/26995720/molecular-identification-of-anisakis-and-hysterothylacium-larvae-in-commercial-cephalopods-from-the-spanish-mediterranean-coast
#2
Gabriela Picó-Durán, Lorena Pulleiro-Potel, Elvira Abollo, Santiago Pascual, Pilar Muñoz
This study aims to investigate the occurrence of nematode larvae in commercial cephalopods in the Western Mediterranean Sea. A total of 202 animals comprising 123 broadtail shortfin squid (Illex coindetii), 34 European squid (Loligo vulgaris) and 45 common octopus (Octopus vulgaris) were examined using enzymatic digestion. A total of 31 larvae were isolated (prevalence: 14.6%) and identified using molecular analyses which included PCR and sequencing of the ITS (ITS1-5.8S rDNA-ITS2) region. Phylogenetic tree inferred from ITS sequences yielded supported relationships for Anisakis (P: 12...
April 15, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/26972602/evaluation-of-alternative-sources-of-collagen-fractions-from-loligo-vulgaris-squid-mantle
#3
Natascia Cozza, Walter Bonani, Antonella Motta, Claudio Migliaresi
Acid-Solubilized Collagen (ASC) and Pepsin-Solubilized Collagen (PSC) were extracted from the mantle of the common European squid, and were comparatively characterized. ASC and PSC were isolated with an extraction yield of 5.1 and 24.2% (on dry weight basis), respectively. SDS-PAGE showed that the ASC was mostly comprised of α1- and α2-chains; while the PSC presented relevant β- and γ-components. GPC analysis confirmed that both the ASC and the PSC consisted of fractions characterized by different molecular weight...
June 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/26239441/efficient-surface-display-of-diisopropylfluorophosphatase-dfpase-in-e-coli-for-biodegradation-of-toxic-organophosphorus-compounds-dfp-and-cp
#4
Ali Mohammad Latifi, Ali Karami, Samaneh Khodi
Compounds including organophosphorus pesticides (OPs) and chemical nerve agents are toxic compounds synthesized recently which disrupt the mechanisms of neural transmission. Therefore, a critical requirement is the development of a bio-refining technology to facilitate the biodegradation of organophosphorus pollutants. The diisopropylfluorophosphatase (DFPase, EC 3.1.8.2) from the ganglion and brain of Loligo vulgaris acts on P-F bonds present in some OPs. Intracellular production of OPs-degrading enzymes or the use of native bacteria and fungi leads to a low degradation rate of OPs due to a mass transfer issue which reduces the overall catalytic efficiency...
October 2015: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/25517216/customizing-properties-of-%C3%AE-chitin-in-squid-pen-gladius-by-chemical-treatments
#5
Alessandro Ianiro, Matteo Di Giosia, Simona Fermani, Chiara Samorì, Marianna Barbalinardo, Francesco Valle, Graziella Pellegrini, Fabio Biscarini, Francesco Zerbetto, Matteo Calvaresi, Giuseppe Falini
The squid pen (gladius) from the Loligo vulgaris was used for preparation of β-chitin materials characterized by different chemical, micro- and nano-structural properties that preserved, almost completely the macrostructural and the mechanical ones. The β-chitin materials obtained by alkaline treatment showed porosity, wettability and swelling that are a function of the duration of the treatment. Microscopic, spectroscopic and synchrotron X-ray diffraction techniques showed that the chemical environment of the N-acetyl groups of the β-chitin chains changes after the thermal alkaline treatment...
December 2014: Marine Drugs
https://www.readbyqxmd.com/read/25427969/seasonal-survey-of-contaminants-cd-and-hg-and-micronutrients-cu-and-zn-in-edible-tissues-of-cephalopods-from-tunisia-assessment-of-risk-and-nutritional-benefits
#6
Moncef Rjeibi, Marc Metian, Tarek Hajji, Thierry Guyot, Rafika Ben Chaouacha-Chekir, Paco Bustamante
Concentrations of cadmium (Cd), copper (Cu), mercury (Hg), and zinc (Zn) were determined by atomic absorption spectrophotometry in the muscle tissues (arms and mantle) of 3 commercial cephalopods (Loligo vulgaris, Octopus vulgaris, and Sepia officinalis) caught in 3 different Tunisian coastal regions. The highest concentrations found correspond to the essential elements Cu and Zn. Octopuses and cuttlefish showed the highest levels of those elements whereas squid presented with significantly higher values of Hg in both muscular tissues...
January 2015: Journal of Food Science
https://www.readbyqxmd.com/read/25301697/sulfated-polysaccharides-from-loligo-vulgaris-skin-potential-biological-activities-and-partial-purification
#7
Baha Eddine Abdelmalek, Assaâd Sila, Fatma Krichen, Wafa Karoud, Oscar Martinez-Alvarez, Semia Ellouz-Chaabouni, Mohamed Ali Ayadi, Ali Bougatef
The characteristics, biological properties, and purification of sulfated polysaccharides extracted from squid (Loligo vulgaris) skin were investigated. Their chemical and physical characteristics were determined using X-ray diffraction and infrared spectroscopic analysis. Sulfated polysaccharides from squid skin (SPSS) contained 85.06% sugar, 2.54% protein, 1.87% ash, 8.07% sulfate, and 1.72% uronic acid. The antioxidant properties of SPSS were investigated based on DPPH radical-scavenging capacity (IC50 = 19...
January 2015: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/24920389/hearing-characteristics-of-cephalopods-modeling-and-environmental-impact-study
#8
Yunfeng Zhang, Feng Shi, Jiakun Song, Xugang Zhang, Shiliang Yu
Cephalopods (octopus, squid and cuttlefish) are some of the most intriguing molluscs, and they represent economically important commercial marine species for fisheries. Previous studies have shown that cephalopods are sensitive to underwater particle motion, especially at low frequencies in the order of 10 Hz. The present paper deals with quantitative modeling of the statocyst system in three cephalopod species: Octopus vulgaris, Sepia officinalis and Loligo vulgaris. The octopus's macula/statolith organ was modeled as a 2nd-order dynamic oscillator using parameter values estimated from scanning electron micrograph images...
January 2015: Integrative Zoology
https://www.readbyqxmd.com/read/24785311/intake-of-essential-and-non-essential-elements-from-consumption-of-octopus-cuttlefish-and-squid
#9
M M Storelli, R Garofalo, D Giungato, R Giacominelli-Stuffler
Total concentrations of essential (Cu, Zn, Se and Cr) and non-essential (Hg, Cd, Pb and As) trace elements were measured in the flesh and hepatopancreas of Octopodidae (Eledone moschata, Eledone cirrhosa, Octopus salutii), Sepiidae (Sepia elegans, Sepia orbignyana) and Loliginidae (Illex coindeti, Loligo vulgaris) from the Mediterranean Sea. As expected, the hepatopancreas showed higher metal concentrations than flesh; the only exceptions were Hg and As, which were equally distributed in the two tissues. Regarding the edible portion, the highest toxic metal concentrations were in Octopodidae (Hg: 0...
2010: Food Additives & Contaminants. Part B, Surveillance
https://www.readbyqxmd.com/read/24720808/hydrolysis-of-dfp-and-the-nerve-agent-s-sarin-by-dfpase-proceeds-along-two-different-reaction-pathways-implications-for-engineering-bioscavengers
#10
Troy Wymore, Martin J Field, Paul Langan, Jeremy C Smith, Jerry M Parks
Organophosphorus (OP) nerve agents such as (S)-sarin are among the most highly toxic compounds that have been synthesized. Engineering enzymes that catalyze the hydrolysis of nerve agents ("bioscavengers") is an emerging prophylactic approach to diminish their toxic effects. Although its native function is not known, diisopropyl fluorophosphatase (DFPase) from Loligo vulgaris catalyzes the hydrolysis of OP compounds. Here, we investigate the mechanisms of diisopropylfluorophosphate (DFP) and (S)-sarin hydrolysis by DFPase with quantum mechanical/molecular mechanical umbrella sampling simulations...
May 1, 2014: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/24562415/interspecific-and-geographical-variations-of-trace-metal-concentrations-in-cephalopods-from-tunisian-waters
#11
Moncef Rjeibi, Marc Metian, Tarek Hajji, Thierry Guyot, Rafika Ben Chaouacha-Chékir, Paco Bustamante
The concentrations of six metals (Ag, Cd, Cu, Hg, Pb, and Zn) were investigated and compared in three tissues (arms, digestive gland, and mantle) of three cephalopod species from the Tunisian waters: the common octopus (Octopus vulgaris), the common cuttlefish (Sepia officinalis), and the European squid (Loligo vulgaris). Whatever the species or the sites, the digestive gland displayed the highest concentrations of Ag, Cd, Cu, Pb, and Zn, highlighting its major role in their bioaccumulation and detoxification...
June 2014: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/24537669/the-digestive-mechanism-of-the-european-squids-logio-vulgaris-loligo-forbesii-alloteuthis-media-and-alloteuthis-subulata
#12
A M BIDDER
No abstract text is available yet for this article.
March 1950: Quarterly Journal of Microscopical Science
https://www.readbyqxmd.com/read/24523499/differential-impacts-of-ocean-acidification-and-warming-on-winter-and-summer-progeny-of-a-coastal-squid-loligo-vulgaris
#13
Rui Rosa, Katja Trübenbach, Marta S Pimentel, Joana Boavida-Portugal, Filipa Faleiro, Miguel Baptista, Gisela Dionísio, Ricardo Calado, Hans O Pörtner, Tiago Repolho
Little is known about the capacity of early life stages to undergo hypercapnic and thermal acclimation under the future scenarios of ocean acidification and warming. Here, we investigated a comprehensive set of biological responses to these climate change-related variables (2°C above winter and summer average spawning temperatures and ΔpH=0.5 units) during the early ontogeny of the squid Loligo vulgaris. Embryo survival rates ranged from 92% to 96% under present-day temperature (13-17°C) and pH (8.0) scenarios...
February 15, 2014: Journal of Experimental Biology
https://www.readbyqxmd.com/read/24183440/an-enzyme-containing-microemulsion-based-on-skin-friendly-oil-and-surfactant-as-decontamination-medium-for-organo-phosphates-phase-behavior-structure-and-enzyme-activity
#14
Ralf Stehle, Christoph Schulreich, Stefan Wellert, Jürgen Gäb, Marc-Michael Blum, Kai Kehe, Andras Richardt, Alain Lapp, Thomas Hellweg
The present contribution presents a microemulsion system containing cosmetic oil and sugar surfactant and the enzyme diisopropyl fluorophosphatase (DFPase) as active agent for the decontamination of human skin. The bicontinuous structure and the physical properties of the microemulsion are characterized by dynamic light scattering and small angle neutron scattering. The DFPase from the squid Loligo vulgaris is catalyzing the hydrolysis of highly toxic organophosphates. The effect of the enzyme on the structure of the microemulsion is investigated...
January 1, 2014: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/24143265/ultrastructural-damage-of-loligo-vulgaris-and-illex-coindetii-statocysts-after-low-frequency-sound-exposure
#15
Marta Solé, Marc Lenoir, Mercè Durfort, Manel López-Bejar, Antoni Lombarte, Michel André
There is a considerable lack of information concerning marine invertebrate sensitivity to sound exposure. However, recent findings on cuttlefish and octopi showed that exposure to artificial noise had a direct consequence on the functionality and physiology of the statocysts, sensory organs, which are responsible for their equilibrium and movements in the water column. Owing to a lack of available data on deep diving cephalopod species, we conducted a noise exposure comparative experiment on one Mediterranean squid, Illex coindetii, and on the European squid Loligo vulgaris...
2013: PloS One
https://www.readbyqxmd.com/read/23727335/polycyclic-aromatic-hydrocarbons-in-commercial-squids-from-different-geographical-origins-levels-and-risks-for-human-consumption
#16
COMPARATIVE STUDY
Filipa Gomes, Marta Oliveira, Maria João Ramalhosa, Cristina Delerue-Matos, Simone Morais
The concentrations of 18 polycyclic aromatic hydrocarbons (PAHs) were determined in five commercially valuable squid species from different geographical origins (Atlantic, Indic and Pacific Oceans). Out of the 18 quantified PAHs (the 16 PAHs considered by US EPA as priority pollutants, dibenzo(a,l)pyrene and benzo(j)fluoranthene) only dibenz(a,h)anthracene was not detected. The total concentrations of PAHs varied by a factor of more than 100-fold, from 0.22 (Loligo gahi) to 60.9 μg/kg ww (Loligo reynaudii)...
September 2013: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/23572720/chemical-composition-of-european-squid-and-effects-of-different-frozen-storage-temperatures-on-oxidative-stability-and-fatty-acid-composition
#17
Servet Atayeter, Hüdayi Ercoşkun
The chemical composition of European squid (Loligo vulgaris) mantles and tentacles and the lipid oxidation during frozen storage at three different temperatures (-20º, -40º and -80 °C) were investigated. The moisture, fat, protein and ash contents of tentacles were 80.72%, 1.44%, 16.16% and 1.63% while the same contents for mantle were 78.54%, 1.37%, 18.52% and 1.45% respectively. The initial free fatty acidity (FFA), peroxide (PV) and thiobarbituric acid reactive substances (TBARS) values of tentacles were 1...
February 2011: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/23535711/occupational-allergy-to-squid-loligo-vulgaris
#18
M Wiszniewska, D Tymoszuk, A Pas-Wyroślak, E Nowakowska-Świrta, D Chomiczewska-Skóra, C Pałczyński, J Walusiak-Skorupa
Occupational allergy from exposure to squid has been rarely described, mainly as contact dermatitis or urticaria. Our report presents the first case of occupational asthma, rhinitis, conjunctivitis and contact urticaria to squid in a 33-year-old seafood production worker, with documented increased eosinophilia in the nasal and tear fluids after specific inhalation challenge test (SICT) with squid. IgE-mediated sensitization to squid was confirmed by positive skin prick test and opened skin test with squid extract...
June 2013: Occupational Medicine
https://www.readbyqxmd.com/read/23387292/dna-barcoding-commercially-important-aquatic-invertebrates-of-turkey
#19
Emre Keskin, Hasan Hüseyin Atar
DNA barcoding was used in order to identify aquatic invertebrates sampled from fisheries bycatch and discards. A total of 440 unique cytochrome c oxidase sub unit I (COI) barcodes were generated for 22 species from three important phyla (Arthropoda, Cnidaria, and Mollusca). All the species were sequenced and submitted to GenBank and Barcode of Life Database (BOLD) databases using 654 bp-long fragment of mitochondrial COI gene. Two of them (Pontastacus leptodactylus and Rapana bezoar) were first records of the species for the BOLD database and six of them (Carcinus aestuarii, Loligo vulgaris, Melicertus kerathurus, Nephrops norvegicus, Scyllarides latus, and Scyllarus arctus) were first standard (>648 bp) COI barcode records for the GenBank database...
August 2013: Mitochondrial DNA
https://www.readbyqxmd.com/read/22701620/ocean-warming-enhances-malformations-premature-hatching-metabolic-suppression-and-oxidative-stress-in-the-early-life-stages-of-a-keystone-squid
#20
Rui Rosa, Marta S Pimentel, Joana Boavida-Portugal, Tatiana Teixeira, Katja Trübenbach, Mário Diniz
BACKGROUND: The knowledge about the capacity of organisms' early life stages to adapt to elevated temperatures is very limited but crucial to understand how marine biota will respond to global warming. Here we provide a comprehensive and integrated view of biological responses to future warming during the early ontogeny of a keystone invertebrate, the squid Loligo vulgaris. METHODOLOGY/PRINCIPAL FINDINGS: Recently-spawned egg masses were collected and reared until hatching at present day and projected near future (+2°C) temperatures, to investigate the ability of early stages to undergo thermal acclimation, namely phenotypic altering of morphological, behavioural, biochemical and physiological features...
2012: PloS One
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