Malabsorption syndrome observed in the common octopus ,

ABSTRACT: Octopus vulgaris infected with Aggregata octopiana were collected from an open-water culture system in the Ría of Aldán (NW Spain) Digestive tract infection values were determined with the use of a Neu chamber by counting the number of A octopianasporocysts After deter-...

Proteomic characterization of the hemolymph of Octopus ,

In this study, a proteomic approach is used to analyze the immune response of O vulgaris against the coccidia Aggregata octopiana, a gastrointestinal parasite which impairs the cephalopod nutritional status The hemocytes and plasma proteomes were compared by 2-DE between sick and healthy octopus The identities of 12 differentially expressed ....

Extraintestinal gamogony of Aggregata octopiana in the ,

Aggregata octopiana (Apicomplexa, Aggregatidae) is the most prevalent coccidian in the wild common octopus (Octopus vulgaris), whose heteroxenous life cycle includes gamogony and sporogony undergoing in the octopus digestive tractIn the infected reared octopi, we observed an unusual extraintestinal distribution of the coccidian, with both gamogony and sporogony ongoing in dermal and ,...

Observations on associated histopathology with Aggregata ,

Gamogony and sporogony of Aggregata octopiana were commonly observed during histological examination of the digestive tract of wild Octopus vulgaris from Ria de Vigo (NW Spain) A octopiana infected noncuticularized caecum and intestine, and cuticularized oesophagus and crop...

Aggregata infection in the common octopus, Octopus ,

MLADINEO & JOZIĆ: Aggregata infection in the common octopus, Octopus vulgaris (Linnaeus, 1758) 197 DISCUSSION Sporocysts of the isolated Aggregata sp fitted within the usual size range of isolated A octopiana cysts from common octopus, even though they differed in an important identification...

An evaluation of the presence and need for sanitary ,

Coccidial infection of the intestinal tract by Aggregata octopiana is very frequent in the common octopus (Octopus vulgaris), a marine species with great potential in aquaculture Altered host-parasite relationship under intensive rearing conditions has been described resulting in hyperinfections that compromise the health and viability of the animal and may lead to condemnation for human....

Aggregata octopiana (Protista: Apicomplexa): a , - CORE

Abstract 6 pages, 3 tabl-- Short communicationThe haemolymph parameters for Octopus vulgaris and the condition index at molecular level were analysed using RNA/DNA and RNA/protein ratios on animals reared in floating cage systems and naturally infected by the coccidian Aggregata octopiana...

Antigenic Relationships Between Aggregata octopiana ,

Key words: Aggregata octopiana, Aggregata eberthi, antigens, Apicomplexa, cross-reactivity INTRODUCTION The genus Aggregata has a two-hosts life cycle, with asexual stages in the intestines of crustaceans and sexual stages in the digestive tracts of cephalopods In cephalopods, the merozoites migrate through the epithe-...

Aggregata - Wikipedia

Aggregata millerorum Aggregata octopiana Aggregata ovata Aggregata patagonica Aggregata portunidarum Aggregata reticulosa Aggregata sagittata Aggregata schneideri Aggregata sepiae Aggregata siedleckii Aggregata spinosa Aggregata stellata Aggregata vagans Aggregata valdessensis Contents Taxonomy...

NOTE Report from the Mediterranean coast of Spain ,

Aggregata octopiana, with fully documented sporogonic development, and a report of Dicyema acuticephalum in the renal tubules of Octopus vulgaris from the northeastern Mediterranean Sea (southern Catalonia) Prevalence for the A octopiana infection of the intestinal epithelium was ...

Aggregata octopiana ( Apicomplexa: Aggregatidae) in

SUMMARY - Authors describe the features observed in some specimens of common octopus (Octopus vulgaris) affected by parasites and sampled from 2004 to 2005 Some cephalopods were reared for several months in tanks and coprological exams were carried out to observe the presence of spores belonging to the species Aggregata octopiana...

De NovoTranscriptome Sequencing of the Octopus ,

coccidian parasite Aggregata octopiana is one of the most important The knowledge of the molecular mechanisms of the immune response in cephalopods, especially in octopus is scarce...

Aggregata octopiana ( Apicomplexa: Aggregatidae) in

SUMMARY - Authors describe the features observed in some specimens of common octopus (Octopus vulgaris) affected by parasites and sampled from 2004 to 2005 Some cephalopods were reared for several months in tanks and coprological exams were carried out to observe the presence of spores belonging to the species Aggregata octopiana...

ARTICLE IN PRESS Molecular phylogenetic analysis of the ,

ARTICLE IN PRESS Molecular phylogenetic analysis of the coccidian cephalopod parasites Aggregata octopiana and Aggregata eberthi (Apicomplexa: Aggregatidae) from the NE Atlantic coast using 18S rRNA sequenc 8 Pag...

De novo transcriptome sequencing of the Octopus vulgaris ,

BACKGROUND: Octopus vulgaris is a highly valuable species of great commercial interest and excellent candidate for aquaculture diversification; however, the octopus' well-being is impaired by pathogens, of which the gastrointestinal coccidian parasite Aggregata octopiana is one of the most important...

First description of parasitation by Agregata octopiana in ,

The negative effects that infections with the coccidian parasite Aggregata octopiana has in cephalopods is widely known However, the assessment of this pathology is fundamental to optimize the intensive culture of octopus In the present report a total of 35 octopuses were studied, 6 coming from the wild, 5 grown in land tanks, 11 grown in ....

Aggregata octopiana (Protista: Apicomplexa): a dangerous ,

The haemolymph parameters for Octopus vulgaris and the condition index at molecular level were analysed using RNA/DNA and RNA/protein ratios on animals reared in floating cage systems and naturally infected by the coccidian Aggregata octopiana...

On the life cycle of Aggregata eberthi and observations on ,

On the life cycle of Aggregata eberthi and observations on Aggregata octopiana (Apicomplexa, Aggregatidae) from Galicia (NE Atlantic) By C Gestal, Ángel Guerra, Santiago Pascual and ,...

Aggregata - Howling Pixel

Aggregata octopiana Aggregata ovata Aggregata patagonica Aggregata portunidarum Aggregata reticulosa Aggregata sagittata Aggregata schneideri Aggregata sepiae Aggregata siedleckii Aggregata spinosa Aggregata stellata Aggregata vagans Aggregata valdessensis Taxonomy This genus was originally described by Lieberkühn in 1854 It was given its ....

Marcos Perez-Losada | Computational Biology Institute ,

Molecular phylogenetic analysis of the coccidian cephalopod parasites Aggregata octopiana and Aggregata eberthi from the NE Atlantic coast using 18S rRNA sequenc European Journal of Parasitology 49: 373-380...

Observations on associated histopathology with Aggregata ,

octopiana infection appears limited A limited defense response was also de-scribed by Poynton et al (1992) for A dobelli and A millerorumin octopuses from Pacific waters Although infection by Aggregata octopi-ana is not believed to be the primary cause of host death in the present study, severe Aggregata octopiana infections may have ....

Parasite of the Day: September 30 - Aggregata octopiana

Sep 09, 2010· Aggregata octopiana is a species of single-celled parasite that infects the common octopus, forming cysts in various parts of the body including the gills, digestive tract, and epidermis The details of the parasite's life-cycle are currently not clear, though it is known to be a two-host life-cycle involving alternating phases of sexual and ....

Aggregata octopiana and Aggregata eberthi (Apicomplexa ,

Aggregata octopiana was isolated from a pool of ten infected octopuses of the species Octopus vulgaris, while Aggregata eberthi was isolated from a pool of ten infected cuttlefishes of the species Sepia officinalis Both cephalopod species were collected by traps....

Proteomic characterization of the hemolymph of Octopus ,

Jun 13, 2014· The gamogonic and sporogonic developmental stages (sexual stages) of Aggregata octopiana occur in their final host, O vulgaris Because of this, development of gametes and oocysts of A octopiana leads to hypertrophy and detachment of digestive epithelial cells in O vulgaris...

TWO NEW AGGREGATA SPECIES (APICOMPLEXA: AGGREGATIDAE ,

During a long-term study carried out between 1981 and 1996 on the biological and fishery aspects of octopuses inhabiting the Gulfs of San Matías, San José, and Nuevo, Patagonia, Argentina, 2 new species of Aggregata (Apicomplexa: Aggregatidae) were found in the digestive tracts of Octopus tehuelchus d'Orbigny, 1834 (prevalence 72%) and Enteroctopus megalocyathus (Gould, 1852) (prevalence 77%)...

Aggregata - Wikipedia

Aggregata octopiana Aggregata ovata Aggregata patagonica Aggregata portunidarum Aggregata reticulosa Aggregata sagittata Aggregata schneideri Aggregata sepiae Aggregata siedleckii Aggregata spinosa Aggregata stellata Aggregata vagans Aggregata valdessensis Aggregata is a genus of parasitic alveolates belonging to the phylum Apicomplexa...

NOTE Report from the Mediterranean coast of Spain ,

Aggregata octopiana, with fully documented sporogonic development, and a report of Dicyema acuticephalum in the renal tubules of Octopus vulgaris from the northeastern Mediterranean Sea (southern Catalonia) Prevalence for the A octopiana infection of the intestinal epithelium was ...

The Gastric Ganglion of Octopus vulgaris : Preliminary ,

The Gastric Ganglion of Digestive Tract Infection on Gene Expression...

Sheila Castellanos | Centro de Investigacion y Estudios ,

ARTICLE IN PRESS Molecular phylogenetic analysis of the coccidian cephalopod parasites Aggregata octopiana and Aggregata eberthi (Apicomplexa: Aggregatidae) from the NE Atlantic coast using 18S rRNA sequences more...

On the life cycle of Aggregata eberthi and observations on ,

reviewed the Aggregata species parasitic in Octopus vulgaris Cuvier, 1797 from NE Atlantic waters They found that Aggregata octopiana (Schneider, 1875) Frenzel, 1885, is the only valid species parasitic in the common octopus After studying the definitive and intermediate hosts in wild populations and carrying out experimental...