8 páginas, 2 figuras, 1 tablaThe coccidia genus Aggregata is responsible for intestinal coccidiosis in wild and cultivated cephalopods Two coccidia species, Aggregata octopiana, (infecting the common octopus Octopus vulgaris), and A eberthi, (infecting the cuttlefish Sepia officinalis), are identified in European waters
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-
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
Aggregata octopiana - common octopus (Octopus vulgaris) Aggregata patagonica - Southern red octopus (Enteroctopus megalocyathus) Aggregata sagittata - European flying squid (Todarodes sagittatus) Aggregata vagans - Eupagurus species; Aggregata valdessensis - Octopus tehuelchus; Synonyms Aggregata duboscqi Moroff 1908 - Aggregata coelomica
Identiﬁcation of Aggregata spp relies on the morpho-logical characterization of sporogonial stages (size, shape, number of sporozoites per sporocyst and ornamentation sporocyst) and parasite–host speciﬁcity To date, the best known species are A octopiana, parasite of O vulgaris, and A eberthi, which infects S ofﬁcinalis A .
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
More interestingly, it has been reported that the cephalopod hemocytes are able to produce oxygen and nitrogen radicals as defense response; NO produced by O vulgaris hemocytes seems to decrease with the increase of infection by Aggregata octopiana (Rodríguez-Domínguez et al, 2006)
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, 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 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.
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 .
Please use this identifier to cite or link to this item: hdlhandle/1893/20015
Oct 31, 2007· Abstract Gestal, C, Guerra, A, and Pascual, S 2007 Aggregata octopiana (Protista: Apicomplexa): a dangerous pathogen during commercial Octopus vulgaris ongrowing – ICES Journal of Marine Science, 64 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 ,
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): 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 Statistical analysis showed that as A octopiana infection ,
ABSTRACT: Gamogony and sporogony of Aggregata octopiana were commonly observed during histological examination of the digestive tract of wild Octopus vulgaris from Ría de Vigo (NW Spain)A octopiana infected noncuticularized caecum and intestine, and cuticularized oesophagus and cropInfection was also observed in the gills and in covering mesenterium, mainly of the digestive ,
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
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 ,
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 The knowledge of the molecular mechanisms of the immune response in cephalopods, especially .
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 Taxonomy This genus was originally described by Lieberkühn in 1854
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 octopiana sporocysts After determining enzyme activity values by the colorimetric Api-Zym system Biomerieux ®, one representative enzyme .
Dec 15, 2017· Octopus Gastric Ganglion Responses to Aggregata octopiana Infection We found changes in the relative expression of 24 genes present in the transcriptome of O vulgaris when we analyzed the mRNAs of animals with relatively “low” vs “high” A octopiana loads (Figure 6) Differences were observed for genes responsible for the synthesis .
Here we have investigated the neurochemical complexity (through in silico gene expression analysis and immunohistochemistry) of the gastric ganglion in Octopus vulgaris and tested whether the expression of a selected number of genes was influenced by the magnitude of digestive tract parasitic infection by Aggregata octopiana
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 .
Unusual sites of Aggregata octopiana infection in octopus cultured in floating cages S Pascual *, AF González, A Guerra Instituto de Investigaciones Marinas, ECOBIOMAR, Eduardo Cabello 6, 36208 Vigo, Spain Abstract This paper deals with the unusual finding of sporogonial stages of Aggregata octopiana
host for Aggregata octopiana, a coccidian that infects the cephalopod Octopus vulgaris However, cross-reactivity with another coccidian, A eberthi, was present in both sporogonic and merogonic stag KEY WORDS: Aggregata octopiana Life cycle Palaemon elegans Coccidians of the genus Aggregata cause major dis- eases in cephalopods
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
アグレガータはアピコンプレックス門に属する寄生性 原生生物。 頭足類と甲殻類を宿主とするコクシジウムの1つ。 分類学上はアグレガータ属(Aggregata)とし、そのうち Aggregata octopiana がヨーロッパでマダコの養殖に被害を与えている。
Aggregata octopiana (Protista: Apicomplexa): a dangerous pathogen during commercial Octopus vulgaris ongrowing – ICES Journal of Marine Science, 64: 1743–1748 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 .
Caribbean reef octopuses are the hosts for Aggregata octopiana, which are parasitic alveolates mainly associated with inflammation, ulceration, and the destruction of the host's organs, and Digenetic trematod These octopuses are affected by ectoparasitic protozoans, .
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.