Toxic effects of extract from the mouth-parts of &lt;i&gt;Argulus coregoni&lt;/i&gt; THORELL (Crustacea: Branchiura)

Shimura, Shigeru; Inoue, Kiyoshi

doi:10.2331/suisan.50.729

Cited by 21 publications

(12 citation statements)

References 4 publications

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“…Skin damage is the result of mechanical actions of the maxillary suckers in adult lice and hooks or spines in larval and juvenile stages and the sharp mandibles. In addition, damage results from various toxins or digestive enzymes secreted via the pre-oral stylet and labial spines [20]. Two days post infection, levels of CXCa transcripts were up-regulated in skin samples collected at the sites of infection (infected spots), and were significantly different from the levels measured in skin isolated not only from non-infected control fish but also from autologous skin samples collected from non-infected spots of infected fish.…”

Section: Discussionmentioning

confidence: 92%

Transcriptional analysis of the common carp (Cyprinus carpio L.) immune response to the fish louse Argulus japonicus Thiele (Crustacea: Branchiura)

Forlenza

Walker

Vries

et al. 2008

Fish & Shellfish Immunology

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Section: Discussionmentioning

confidence: 92%

Transcriptional analysis of the common carp (Cyprinus carpio L.) immune response to the fish louse Argulus japonicus Thiele (Crustacea: Branchiura)

Forlenza

Walker

Vries

et al. 2008

Fish & Shellfish Immunology

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“…). Furthermore, these parasites inject cytolytic toxins (LaMarre & Cochran ) and digestive enzymes (Shimura & Inoue ) through the oral sting and labial spines which may result in damage to skin as well as other internal organs of the host. To understand the changes in immune system, which occur in response to A. siamensis infection, it is necessary to evaluate various innate immune parameters in serum and induction of immune‐relevant genes in organs like skin and head kidney which are important sites of immune response in parasitic infections during the infection period.…”

Section: Discussionmentioning

confidence: 99%

The immune response in rohu,Labeo rohita(Actinopterygii: Cyprinidae) toArgulus siamensis(Branchiura: Argulidae) infection: kinetics of immune gene expression and innate immune response

Kar

Mohanty

Kannur³

et al. 2013

Aquac Res

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Argulus siamensis is a major pathogen in freshwater aquaculture. The immune responses of Indian major carp, Labeo rohita to experimental infection of A. siamensis was evaluated by quantitation of immune-relevant gene expression in head kidney and skin, and serum innate immune parameters through the course of infection. In skin of infected fish, antioxidant genes like natural killer cell enhancing factor (NKEF-B) and superoxide dismutase (MnSOD) were significantly up-regulated in addition to lysozyme G and b 2 microglobulin (b 2 M). Both tumour necrosis factor a (TNFa) and toll-like receptor 22 (TLR22) genes were significantly down-regulated in skin during early phases of the infection. Most of the genes exhibited significant down-regulation in head kidney; immunoglobulin (IgM) and b 2 M genes being the exceptions which were significantly up-regulated at 12 h and 3 days post infection. Most of the innate immune parameters like serum complement activity and ceruloplasmin levels showed significant reduction in infected fish. The observed results are indicative of A. siamensis modulating the immune response of rohu by down-regulation of many immune factors which may explain the susceptibility of rohu to A. siamensis infection. The interaction of this parasite with the host need to be further explored to understand its pathogenesis.

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“…Tam & Avenant-Oldewage, 2006). Shimura & Inoue (1984) injected an extract derived from A. coregoni Thorell, 1864, into rainbow trout (Oncorhynchus mykiss Walbaum, 1792), and found that it induced a haemorrhagic response, which would facilitate haematophagy by A. coregoni. Forlenza et al (2008) demonstrated an inflammatory response in carp skin following infection with A. japonicus.…”

Section: Resultsmentioning

confidence: 99%

Feeding in Adult Argulus Japonicus Thiele, 1900 (maxillopoda, Branchiura), an Ectoparasite on Fish

Walker

Russon

Haond

et al. 2011

Crustac

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The argulids are an economically important group of crustacean ectoparasites known to be problematic in fish farming operations from both temperate and tropical regions. Argulus japonicus was first described from Japanese fish but is now well established in many parts of the world including Europe. To aid the development of effective chemotheraputants and/or vaccines against these parasites it is essential to know exactly what these animals ingest when feeding upon their fish hosts. From past morphological studies authors have shown that these parasites use a proboscis-like mouth tube for feeding, however, until now there has been much speculation amongst authors over the diet of these animals. Live observations, histology, as well as scanning and transmission electron microscopy were used to examine the feeding apparatus and gut contents of individual larval and adult lice before and after feeding on juvenile common carp, Cyprinus carpio. Red coloration of the parasites gut after feeding was obvious, suggesting ingestion of red blood cells by the adult lice. Sections of the adult lice used for histology and TEM revealed red blood cells from the fish host within the parasites gut. Larval lice were found not to feed on blood cells because of their mouth part morphology and the lack of blood cells in their intestines. Haemorrhagic responses of the hosts skin by infection of adult lice was observed between 24 and 48 hrs post infection. All techniques provided evidence that the adult parasites are indeed obligate blood feeders. RÉSUMÉLes argulidés sont un groupe de crustacés ectoparasites, économiquement importants, connus pour poser des problèmes en aquaculture à la fois dans les régions tempérées et tropicales. Argulus japonicus a été décrit pour la première fois sur des poissons japonais, mais est maintenant bien établi dans de nombreuses parties du monde Europe comprise. Pour aider le développement d'une

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Toxic effects of extract from the mouth-parts of <i>Argulus coregoni</i> THORELL (Crustacea: Branchiura)

Cited by 21 publications

References 4 publications

Transcriptional analysis of the common carp (Cyprinus carpio L.) immune response to the fish louse Argulus japonicus Thiele (Crustacea: Branchiura)

Transcriptional analysis of the common carp (Cyprinus carpio L.) immune response to the fish louse Argulus japonicus Thiele (Crustacea: Branchiura)

The immune response in rohu,Labeo rohita(Actinopterygii: Cyprinidae) toArgulus siamensis(Branchiura: Argulidae) infection: kinetics of immune gene expression and innate immune response

Feeding in Adult Argulus Japonicus Thiele, 1900 (maxillopoda, Branchiura), an Ectoparasite on Fish

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