Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Ultrastructure and development of Pleistophora senegalensis sp. nov. (Protozoa, Microspora) from the gilt-head sea bream, Sparus aurata L. (Teleost, Sparidae) from the coast of Senegal (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish diseases 13 (1990), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Abstract. The microsporidian Pleistophora senegalensis sp. nov. parasitizes the gilt-head sea bream, Sparus aurata L, The parasite is found in the intestinal wall where it forms small xenomas in the muscularis. The development cycle of this species is described by light and electron microscopy. Meronts are rounded plasmodia dividing by plasmotomy and bounded by an amorphous and very regular wall. At the onset of sporogony, sporophorous vesicles are formed by separation of the plasma membrane from the external wall which then becomes a characteristic mesh. Mature spores (4.45 × 2.37μm) are ovoid and slightly pyriform with a large posterior vacuole.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.1990.tb00773.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Microsporidiosis on Artemia (Crustacea, Anostraca): light and electron microscopy of Vavraia anostraca sp. nov. (Microsporidia, Pleistophoridae) in the Brazilian solar salterns
    Amsterdam : Elsevier
    Aquaculture 107 (1992), S. 229-237 
    Details
    ISSN: 0044-8486
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0044-8486(92)90071-R
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Nosemoides syacii n. sp., a microsporidian parasite of the West African turbot Syacium micrurum Ranzani, 1840 (1994)
    Springer
    Systematic parasitology 29 (1994), S. 43-50 
    Details
    ISSN: 1573-5192
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Abstract Nosemoides syacii n. sp. is a new microsporidian parasite of the stomach, gut and liver of Syacium micrurum (Pisces: Teleostei). It forms whitish, elongate-oval xenomas. All the development stages of the microsporidia are monokaryotic and in direct contact with host cytoplasm. Merogonial and sporogonial plasmodia divide by plasmotomy. Sporogony is polysporous and results in oval spores with a conspicuous posterior vacuole which measured 3.8×2.2 μm (2.9–4.9×1.8–2.7 μm). The polar filament is isofilar and consists of only four to five coils. The polaroplast is made up of an anterior lamellar part and a posterior vesicular part.
    Notes: Résumé Nosemoides syacii n. sp. est une nouvelle Microsporidie parasite de l'estomac, de l'intestin et du foie de Syacium micrurum (Poisson, Téléostéen). Elle provoque la formation de xénomes blanchâtres, allongés et ovales. Tous les stades de développement sont monocaryotiques et en contact direct avec le cytoplasmehôte. Les plasmodes mérogoniaux et sporogoniaux se divisent par plasmotomie. La sporogonie, qui est polysporée, aboutit à la formation de spores ovoïdes, à vacuole postérieure volumineuse et mesurant 3.8×2.2 μm (2.9–4.9×1.8–2.7 μm). Le filament polaire est isofilaire et décrit quatre à cinq tours de spire. Le polaroplaste se compose d'une partie antérieure lamellaire et d'une partie postérieure vésiculaire.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00009837
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Myxosporea (Protozoa: Myxozoa) of freshwater fishes in Africa: keys to genera and species (1997)
    Springer
    Systematic parasitology 37 (1997), S. 161-178 
    Details
    ISSN: 1573-5192
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract In Africa, about a hundred species of Myxosporea are known to infest fishes in various countries. Species of nine genera have been described in freshwater fishes: Myxidium, Sphaerospora, Myxobilatus, Myxobolus, Thelohanellus, Unicauda, Henneguya, Chloromyxum and Kudoa. In the present note, we propose a key to the species infecting freshwater fishes. A systematic revision of some species is given. A list of different species, their hosts and their geographical distribution are also presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005839220014
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Nosemoides tilapiae n.sp., microsporidie parasite de poissons cichlidae des eaux saumâtres du Bénin: implantation et caractères ultrastructuraux (1987)
    Springer
    Parasitology research 73 (1987), S. 203-212 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Résumé Nosemoides tilapiae (Microsporidie) est une nouvelle espèce, parasite de trois Cichlidae (Poissons Téléostéens) des genresTilapia etSarotherodon, provenant du Lac Nokoué (Abomey-Calavi) et de la Lagune de Porto-Novo (Djassin) en République Populaire du Bénin. Les différents types d'implantation du parasite (branchies, intestin, foie,...) suggèrent un rapprochement avec le genreLoma mais l'étude ultrastructurale de l'espèce l'éloigne de ce dernier. En effet, tous les stades de développement du parasite ne présentent jamais de diplocaryons et sont en contact direct avec le cytoplasme de l'hÔte, ce qui confirme l'appartenance au genreNosemoides (sporogonie polysporée).
    Notes: Abstract Nosemoides tilapiae is a new microsporidian parasite from three Cichlidae (Pisces, Teleostean), genusTilapia andSarotherodon of Lake Nokoue (Abomey-Calavi) and the Porto-Novo stream (Djassin) in the People's Republic of Benin. The different localisations of the parasite (gills, gut, liver...) suggest a relationship with the genusLoma but ultrastructural study of the species distances it from this genus. Indeed each of the parasite developmental stages does not show any diplokaryon and is in close contact with the host cell cytoplasm which assigns it to the genusNosemoides (polysporoblastic).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00578505
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Loma camerounensis sp. nov. (Protozoa: Microsporida) a parasite ofOreochromis niloticus Linnaeus, 1757 (Teleost: Cichlidae) in fish-rearing ponds in Melen, Yaoundé, Cameroon (1992)
    Springer
    Parasitology research 78 (1992), S. 201-208 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A new microsporidian,Loma camerounensis, was found in the CichlidaeOreochromis niloticus from the Melen fish-rearing station in Yaoundé, Cameroon. Xenomas were located in the gut from the oesophagus to the intestine, but preferentially in the duodenum. Dimensions of the fresh spores were 3.96×2.16 μm. The ultrastructural study indicated the following characteristics: parasite stages arranged in a random, unstratified manner in the xenoma; merogony by multiple fission; sporogonic stages isolated within a sporophorous vesicle containing several sporoblasts and polysporoblastic sporogony. Ultimately the spores appeared to be isolated in a single vesicle, but this was a secondary phenomenon induced by the intervention of tubules that resolved in partitions of the initial sporophorous vesicle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00931727
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Coelomophaga chydori n. gen. n. sp. Protiste parasite de Chydorus sphaericus Muller, 1785. Cycle, ultrastructures, position systématique (1977)
    Springer
    Parasitology research 51 (1977), S. 147-158 
    Details
    ISSN: 1432-1955
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Résumé Coelomophaga chydori n. gen. n. sp. parasite de Chydorus sphaericus (Crustacé, Cladocère) est décrit. Le cycle complet de ce pathogène mortel est étudié au microscope photonique et au microscope électronique: sporoplasmes infestants uninucléés, stades plasmodiaux, sporoblastes uninucléés qui donnent des spores après élimination d'un reliquat cytoplasmique. Les spores mûres mesurent en moyenne 6,2×4,3 μm. La position systématique de C. chydori est discutée. Ce parasite est très provisoirement rapproché de la famille des Nephridiophagidae (Microspora, Haplosporidiidae).
    Notes: Summary Coelomophaga chydori n. gen. n. sp. is described from Chydorus sphaericus (Crustacea, Cladocera). The natural life cycle of this pathogen is studied with light and electron microscope: infesting uninucleate sporoplasms, plasmodial stages, uninucleate sporoblasts which after cytoplasmic elimination give rise to spores. Mature spores are oval in shape and average about 6,2×4,3 μm. Affinities of C. chydori to closely related taxa are briefly discussed. At present this parasite is classified in the Nephridiophagidae (Microspora, Haplosporidiidae).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00500954
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Influence ofNosema bordati (Microsporida: Nosematidae) on the biological cycle ofChilo partellus (Lep: Pyralidae), a stem borer of cultivated graminae (1993)
    Springer
    BioControl 38 (1993), S. 551-564 
    Details
    ISSN: 1573-8248
    Keywords: rearing ; infestation ; artificial diet ; mortality ; immature stages ; fecundity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Une infestation expérimentale des chenilles de différents stades deChilo partellus (Swinhoe) parNosema bordati Goudegnon a été menée en laboratoire. Le parasite est très pathogène pour son hôte dont il peut réduire sensiblement les populations dans la nature.
    Notes: Abstract The biological cycle ofChilo partellus (Swinhoe) was described on artificial diet. From egg to adult, it lasted 32 to 49 days with an average of 36.6 days. About 2,000 larvae from the 2nd to the 5th instars were artificially infected by ingestion with doses ofNosema bordati Goudegnon, varying from 2×102 to 2×107 spores per ml. Only 72 survived (7.66 %) of these infected larvae.N. bordati, when present in the larvae, continued to multiply in the resulting pupae. The parasite affected the adults of this Pyralid reducing in a proportion of 5 the productivity of infected females and increasing the production of sterile eggs in the proportion of 8.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02373090
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Relationships betweenApanteles flavipes (Hym.: Braconidae) andNosema bordati (Microspora,Nosematidae) parasites ofChilo partellus (Lep.: Pyralidae) (1994)
    Springer
    BioControl 39 (1994), S. 21-32 
    Details
    ISSN: 1573-8248
    Keywords: fecundity ; transmission ; mass-rearing ; interspecific relationships ; parasitoid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Une étude a été menée en laboratoire sur les inter-relations entreNosema bordati Goudegnon etApanteles flavipes (Cameron) lorsqu'ils parasitent simultanémentChilo partellus (Swinhoe). Il en ressort queN. bordati est très pathogène et virulente pour les stades immatures du parasitoïde. Faiblement infestés, les adultes peuvent disséminer la Microsporidie.
    Notes: Abstract A laboratory study was conducted on the relationships betweenNosema bordati Goudegnon andApanteles flavipes (Cameron) when they simultaneously parasitiseChilo partellus (Swinhoe). The results indicate thatN. bordati is highly pathogenic to the immature instars of the parasitoid. Lightly infected adults ofA. flavipes are able to transmit the Microsporidian.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02373491
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...