Diplostomum spathaceum cercariae respond to a unique profile of cues during recognition of their fish host
During its normal life cycle, Diplostomum spathaceum cercariae attach to and invade fish intermediate hosts. They are also known to attach to various other aquatic animals in response to water currents, touch and carbon dioxide. The purpose of this study was to identify the specific stimuli used by...
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| Veröffentlicht in: | International journal for parasitology 2002-08, Vol.32 (9), p.1145-1154 |
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| container_title | International journal for parasitology |
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| creator | Haas, Wilfried Stiegeler, Petra Keating, Anne Kullmann, Birgit Rabenau, Holger Schönamsgruber, Eric Haberl, Bernhard |
| description | During its normal life cycle,
Diplostomum spathaceum cercariae attach to and invade fish intermediate hosts. They are also known to attach to various other aquatic animals in response to water currents, touch and carbon dioxide. The purpose of this study was to identify the specific stimuli used by
D. spathaceum cercariae to recognise the appropriate fish host. We characterised the host cues which stimulate them to remain on the host (enduring contact) and to penetrate the skin. Cercariae were exposed to animal skin tissues and fish skin surface mucus, their extracts and chemical modifications integrated into agar or offered via membrane filters. Enduring contact was stimulated by hydrophilic extracts Mr30
kDa, and by lipids. The hydrophilic stimuli were protease resistant and precipitable with Alcian blue and they were sensitive to alkaline cleavage, to digestion with lysozyme and neuraminidase as well as to oxidation of sialic acids. They were considered to be glycoproteins with
O-glycosidically linked carbohydrate chains and bound sialic acids as signal structures. The lipophilic penetration stimuli were contained exclusively in the fatty acid fractions, and the stimulating characteristics of these fatty acids resembled the stimulating penetrations in other cercarial species.
Diplostomum spathaceum cercariae respond to a unique profile of cues in their sequence of host-recognition phases. These cues differ from those used in other fish parasites studied to date and underline the diversity of fish recognition strategies. |
| doi_str_mv | 10.1016/S0020-7519(02)00089-9 |
| format | Article |
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Diplostomum spathaceum cercariae attach to and invade fish intermediate hosts. They are also known to attach to various other aquatic animals in response to water currents, touch and carbon dioxide. The purpose of this study was to identify the specific stimuli used by
D. spathaceum cercariae to recognise the appropriate fish host. We characterised the host cues which stimulate them to remain on the host (enduring contact) and to penetrate the skin. Cercariae were exposed to animal skin tissues and fish skin surface mucus, their extracts and chemical modifications integrated into agar or offered via membrane filters. Enduring contact was stimulated by hydrophilic extracts Mr<3
kDa, which were sensitive to oxidation of carbohydrates. The stimulating cues are probably small molecular carbohydrates, as monosaccharides stimulated enduring contacts, but amino acids, urea, electrolytes and peptides did not. Penetration was stimulated by hydrophilic macromolecules, Mr>30
kDa, and by lipids. The hydrophilic stimuli were protease resistant and precipitable with Alcian blue and they were sensitive to alkaline cleavage, to digestion with lysozyme and neuraminidase as well as to oxidation of sialic acids. They were considered to be glycoproteins with
O-glycosidically linked carbohydrate chains and bound sialic acids as signal structures. The lipophilic penetration stimuli were contained exclusively in the fatty acid fractions, and the stimulating characteristics of these fatty acids resembled the stimulating penetrations in other cercarial species.
Diplostomum spathaceum cercariae respond to a unique profile of cues in their sequence of host-recognition phases. These cues differ from those used in other fish parasites studied to date and underline the diversity of fish recognition strategies.</description><identifier>ISSN: 0020-7519</identifier><identifier>EISSN: 1879-0135</identifier><identifier>DOI: 10.1016/S0020-7519(02)00089-9</identifier><identifier>PMID: 12117497</identifier><identifier>CODEN: IJPYBT</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Animal and plant ecology ; Animal, plant and microbial ecology ; Animals ; Anura ; Autoecology ; Biological and medical sciences ; Cell Adhesion ; Cercariae ; Cues ; Diplostomum spathaceum ; Dogs ; Ducks ; Fatty acids ; Fatty Acids - physiology ; Fish Diseases - parasitology ; Fish mucus ; Fish recognition ; Fishes - parasitology ; Fundamental and applied biological sciences. Psychology ; Glycoproteins ; Host-finding ; Host-Parasite Interactions ; Humans ; Lipids - physiology ; Parasite behaviour ; Protozoa. Invertebrata ; Sialic acids ; Skin - parasitology ; Species Specificity ; Trematoda - physiology ; Trematode Infections - parasitology</subject><ispartof>International journal for parasitology, 2002-08, Vol.32 (9), p.1145-1154</ispartof><rights>2002 Australian Society for Parasitology Inc</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c422t-53d77309d08921b5105e8cc286802424b935a2dc2173fe13a0db1cff0f252afd3</citedby><cites>FETCH-LOGICAL-c422t-53d77309d08921b5105e8cc286802424b935a2dc2173fe13a0db1cff0f252afd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0020751902000899$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13785254$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12117497$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Haas, Wilfried</creatorcontrib><creatorcontrib>Stiegeler, Petra</creatorcontrib><creatorcontrib>Keating, Anne</creatorcontrib><creatorcontrib>Kullmann, Birgit</creatorcontrib><creatorcontrib>Rabenau, Holger</creatorcontrib><creatorcontrib>Schönamsgruber, Eric</creatorcontrib><creatorcontrib>Haberl, Bernhard</creatorcontrib><title>Diplostomum spathaceum cercariae respond to a unique profile of cues during recognition of their fish host</title><title>International journal for parasitology</title><addtitle>Int J Parasitol</addtitle><description>During its normal life cycle,
Diplostomum spathaceum cercariae attach to and invade fish intermediate hosts. They are also known to attach to various other aquatic animals in response to water currents, touch and carbon dioxide. The purpose of this study was to identify the specific stimuli used by
D. spathaceum cercariae to recognise the appropriate fish host. We characterised the host cues which stimulate them to remain on the host (enduring contact) and to penetrate the skin. Cercariae were exposed to animal skin tissues and fish skin surface mucus, their extracts and chemical modifications integrated into agar or offered via membrane filters. Enduring contact was stimulated by hydrophilic extracts Mr<3
kDa, which were sensitive to oxidation of carbohydrates. The stimulating cues are probably small molecular carbohydrates, as monosaccharides stimulated enduring contacts, but amino acids, urea, electrolytes and peptides did not. Penetration was stimulated by hydrophilic macromolecules, Mr>30
kDa, and by lipids. The hydrophilic stimuli were protease resistant and precipitable with Alcian blue and they were sensitive to alkaline cleavage, to digestion with lysozyme and neuraminidase as well as to oxidation of sialic acids. They were considered to be glycoproteins with
O-glycosidically linked carbohydrate chains and bound sialic acids as signal structures. The lipophilic penetration stimuli were contained exclusively in the fatty acid fractions, and the stimulating characteristics of these fatty acids resembled the stimulating penetrations in other cercarial species.
Diplostomum spathaceum cercariae respond to a unique profile of cues in their sequence of host-recognition phases. These cues differ from those used in other fish parasites studied to date and underline the diversity of fish recognition strategies.</description><subject>Animal and plant ecology</subject><subject>Animal, plant and microbial ecology</subject><subject>Animals</subject><subject>Anura</subject><subject>Autoecology</subject><subject>Biological and medical sciences</subject><subject>Cell Adhesion</subject><subject>Cercariae</subject><subject>Cues</subject><subject>Diplostomum spathaceum</subject><subject>Dogs</subject><subject>Ducks</subject><subject>Fatty acids</subject><subject>Fatty Acids - physiology</subject><subject>Fish Diseases - parasitology</subject><subject>Fish mucus</subject><subject>Fish recognition</subject><subject>Fishes - parasitology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Glycoproteins</subject><subject>Host-finding</subject><subject>Host-Parasite Interactions</subject><subject>Humans</subject><subject>Lipids - physiology</subject><subject>Parasite behaviour</subject><subject>Protozoa. Invertebrata</subject><subject>Sialic acids</subject><subject>Skin - parasitology</subject><subject>Species Specificity</subject><subject>Trematoda - physiology</subject><subject>Trematode Infections - parasitology</subject><issn>0020-7519</issn><issn>1879-0135</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU-PFCEQxYnRuLOrH0HDRaOH1gKaAU7GrOufZBMP6pkwUOyw6W5a6Dbx28vsTNzjnqiEX1W9eo-QFwzeMWDb9z8AOHRKMvMG-FsA0KYzj8iGaWU6YEI-Jpv_yBk5r_UWgEnR90_JGeOMqd6oDbn9lOYh1yWP60jr7Ja989hKj8W7khzSgnXOU6BLpo6uU_q9Ip1LjmlAmiP1K1Ya1pKmm4b6fDOlJeXp8LXsMRUaU93TfVvxjDyJbqj4_PRekF-fr35efu2uv3_5dvnxuvM950snRVBKgAntIs52koFE7T3XWw285_3OCOl48JwpEZEJB2HHfIwQueQuBnFBXh_nNpVNbF3smKrHYXAT5rVaxbQRxugHQaal2W4lNFAeQV9yrQWjnUsaXflrGdhDGvYuDXuw2gK3d2lY0_penhasuxHDfdfJ_ga8OgGuejfE4iaf6j0nlJZc9o37cOSw-fYnYbHVJ5w8htQ8X2zI6QEp_wDPmach</recordid><startdate>20020801</startdate><enddate>20020801</enddate><creator>Haas, Wilfried</creator><creator>Stiegeler, Petra</creator><creator>Keating, Anne</creator><creator>Kullmann, Birgit</creator><creator>Rabenau, Holger</creator><creator>Schönamsgruber, Eric</creator><creator>Haberl, Bernhard</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope><scope>7X8</scope></search><sort><creationdate>20020801</creationdate><title>Diplostomum spathaceum cercariae respond to a unique profile of cues during recognition of their fish host</title><author>Haas, Wilfried ; Stiegeler, Petra ; Keating, Anne ; Kullmann, Birgit ; Rabenau, Holger ; Schönamsgruber, Eric ; Haberl, Bernhard</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c422t-53d77309d08921b5105e8cc286802424b935a2dc2173fe13a0db1cff0f252afd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Animal and plant ecology</topic><topic>Animal, plant and microbial ecology</topic><topic>Animals</topic><topic>Anura</topic><topic>Autoecology</topic><topic>Biological and medical sciences</topic><topic>Cell Adhesion</topic><topic>Cercariae</topic><topic>Cues</topic><topic>Diplostomum spathaceum</topic><topic>Dogs</topic><topic>Ducks</topic><topic>Fatty acids</topic><topic>Fatty Acids - physiology</topic><topic>Fish Diseases - parasitology</topic><topic>Fish mucus</topic><topic>Fish recognition</topic><topic>Fishes - parasitology</topic><topic>Fundamental and applied biological sciences. 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Diplostomum spathaceum cercariae attach to and invade fish intermediate hosts. They are also known to attach to various other aquatic animals in response to water currents, touch and carbon dioxide. The purpose of this study was to identify the specific stimuli used by
D. spathaceum cercariae to recognise the appropriate fish host. We characterised the host cues which stimulate them to remain on the host (enduring contact) and to penetrate the skin. Cercariae were exposed to animal skin tissues and fish skin surface mucus, their extracts and chemical modifications integrated into agar or offered via membrane filters. Enduring contact was stimulated by hydrophilic extracts Mr<3
kDa, which were sensitive to oxidation of carbohydrates. The stimulating cues are probably small molecular carbohydrates, as monosaccharides stimulated enduring contacts, but amino acids, urea, electrolytes and peptides did not. Penetration was stimulated by hydrophilic macromolecules, Mr>30
kDa, and by lipids. The hydrophilic stimuli were protease resistant and precipitable with Alcian blue and they were sensitive to alkaline cleavage, to digestion with lysozyme and neuraminidase as well as to oxidation of sialic acids. They were considered to be glycoproteins with
O-glycosidically linked carbohydrate chains and bound sialic acids as signal structures. The lipophilic penetration stimuli were contained exclusively in the fatty acid fractions, and the stimulating characteristics of these fatty acids resembled the stimulating penetrations in other cercarial species.
Diplostomum spathaceum cercariae respond to a unique profile of cues in their sequence of host-recognition phases. These cues differ from those used in other fish parasites studied to date and underline the diversity of fish recognition strategies.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>12117497</pmid><doi>10.1016/S0020-7519(02)00089-9</doi><tpages>10</tpages></addata></record> |
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| ispartof | International journal for parasitology, 2002-08, Vol.32 (9), p.1145-1154 |
| issn | 0020-7519 1879-0135 |
| language | eng |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Animal and plant ecology Animal, plant and microbial ecology Animals Anura Autoecology Biological and medical sciences Cell Adhesion Cercariae Cues Diplostomum spathaceum Dogs Ducks Fatty acids Fatty Acids - physiology Fish Diseases - parasitology Fish mucus Fish recognition Fishes - parasitology Fundamental and applied biological sciences. Psychology Glycoproteins Host-finding Host-Parasite Interactions Humans Lipids - physiology Parasite behaviour Protozoa. Invertebrata Sialic acids Skin - parasitology Species Specificity Trematoda - physiology Trematode Infections - parasitology |
| title | Diplostomum spathaceum cercariae respond to a unique profile of cues during recognition of their fish host |
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