Control of planula migration by LWamide and RFamide neuropeptides in Hydractinia echinata
Planula larvae of Hydractinia echinata (Cnidaria) settled on a substratum migrate toward light. We observed that planula migration is not a continuous process. Instead, it consists of repeating cycles of active migration (about 8 min on average) and inactive resting periods (about 26 min on average)...
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| Veröffentlicht in: | Journal of experimental biology 2004-05, Vol.207 (Pt 11), p.1803-1810 |
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| container_issue | Pt 11 |
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| container_title | Journal of experimental biology |
| container_volume | 207 |
| creator | Katsukura, Yuki Ando, Hiroshi David, Charles N Grimmelikhuijzen, Cornelis J P Sugiyama, Tsutomu |
| description | Planula larvae of Hydractinia echinata (Cnidaria) settled on a substratum migrate toward light. We observed that planula migration is not a continuous process. Instead, it consists of repeating cycles of active migration (about 8 min on average) and inactive resting periods (about 26 min on average). This pattern of periodic migration is regulated by LWamide and RFamide neuropeptides. LWamide (10(-8) mol l(-1)) stimulates migration primarily by making the active periods longer, whereas RFamide (10(-7) mol l(-1)) inhibits migration by blocking the initiation and also shortening the length of the active periods. Since sensory neurons containing LWamides and RFamides are present in planula larvae, it appears likely that planula migration is regulated by the release of endogenous neuropeptides in response to environmental cues. |
| doi_str_mv | 10.1242/jeb.00974 |
| format | Article |
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We observed that planula migration is not a continuous process. Instead, it consists of repeating cycles of active migration (about 8 min on average) and inactive resting periods (about 26 min on average). This pattern of periodic migration is regulated by LWamide and RFamide neuropeptides. LWamide (10(-8) mol l(-1)) stimulates migration primarily by making the active periods longer, whereas RFamide (10(-7) mol l(-1)) inhibits migration by blocking the initiation and also shortening the length of the active periods. Since sensory neurons containing LWamides and RFamides are present in planula larvae, it appears likely that planula migration is regulated by the release of endogenous neuropeptides in response to environmental cues.</description><identifier>ISSN: 0022-0949</identifier><identifier>EISSN: 1477-9145</identifier><identifier>DOI: 10.1242/jeb.00974</identifier><identifier>PMID: 15107436</identifier><language>eng</language><publisher>England</publisher><subject>Animal Migration - drug effects ; Animals ; Cnidaria ; Hydractinia echinata ; Hydrozoa - physiology ; Larva - physiology ; Light ; Marine ; Neuropeptides - pharmacokinetics ; Neuropeptides - pharmacology ; Seawater ; Time Factors</subject><ispartof>Journal of experimental biology, 2004-05, Vol.207 (Pt 11), p.1803-1810</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c350t-db1a85b77443fad2445747bc74e13e155c471377b5a0055ad96002277f3e98b83</citedby><cites>FETCH-LOGICAL-c350t-db1a85b77443fad2445747bc74e13e155c471377b5a0055ad96002277f3e98b83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,3665,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15107436$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Katsukura, Yuki</creatorcontrib><creatorcontrib>Ando, Hiroshi</creatorcontrib><creatorcontrib>David, Charles N</creatorcontrib><creatorcontrib>Grimmelikhuijzen, Cornelis J P</creatorcontrib><creatorcontrib>Sugiyama, Tsutomu</creatorcontrib><title>Control of planula migration by LWamide and RFamide neuropeptides in Hydractinia echinata</title><title>Journal of experimental biology</title><addtitle>J Exp Biol</addtitle><description>Planula larvae of Hydractinia echinata (Cnidaria) settled on a substratum migrate toward light. We observed that planula migration is not a continuous process. Instead, it consists of repeating cycles of active migration (about 8 min on average) and inactive resting periods (about 26 min on average). This pattern of periodic migration is regulated by LWamide and RFamide neuropeptides. LWamide (10(-8) mol l(-1)) stimulates migration primarily by making the active periods longer, whereas RFamide (10(-7) mol l(-1)) inhibits migration by blocking the initiation and also shortening the length of the active periods. Since sensory neurons containing LWamides and RFamides are present in planula larvae, it appears likely that planula migration is regulated by the release of endogenous neuropeptides in response to environmental cues.</description><subject>Animal Migration - drug effects</subject><subject>Animals</subject><subject>Cnidaria</subject><subject>Hydractinia echinata</subject><subject>Hydrozoa - physiology</subject><subject>Larva - physiology</subject><subject>Light</subject><subject>Marine</subject><subject>Neuropeptides - pharmacokinetics</subject><subject>Neuropeptides - pharmacology</subject><subject>Seawater</subject><subject>Time Factors</subject><issn>0022-0949</issn><issn>1477-9145</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkEFLwzAUx4Mobk4PfgHJSfBQTZqXvvUowzlhIIginkrSpprRJjVpD_v2dm7g0Xd578GPP_x_hFxydstTSO82Rt8yliMckSkHxCTnII_JlLE0TVgO-YScxbhh42QSTsmES84QRDYlHwvv-uAb6mvaNcoNjaKt_Qyqt95RvaXrd9XaylDlKvqy3N_ODMF3puvHJ1Lr6GpbBVX21llFTfllnerVOTmpVRPNxWHPyNvy4XWxStbPj0-L-3VSCsn6pNJczaVGBBC1qlIAiYC6RDBcGC5lCcgFopaKMSlVlWe7Woi1MPlcz8WMXO9zu-C_BxP7orWxNM1YxvghFsjn2RiZ_wtyxBQyBiN4swfL4GMMpi66YFsVtgVnxU54MQovfoWP7NUhdNCtqf7Ig2HxA80Denc</recordid><startdate>200405</startdate><enddate>200405</enddate><creator>Katsukura, Yuki</creator><creator>Ando, Hiroshi</creator><creator>David, Charles N</creator><creator>Grimmelikhuijzen, Cornelis J P</creator><creator>Sugiyama, Tsutomu</creator><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>200405</creationdate><title>Control of planula migration by LWamide and RFamide neuropeptides in Hydractinia echinata</title><author>Katsukura, Yuki ; Ando, Hiroshi ; David, Charles N ; Grimmelikhuijzen, Cornelis J P ; Sugiyama, Tsutomu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c350t-db1a85b77443fad2445747bc74e13e155c471377b5a0055ad96002277f3e98b83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Animal Migration - drug effects</topic><topic>Animals</topic><topic>Cnidaria</topic><topic>Hydractinia echinata</topic><topic>Hydrozoa - physiology</topic><topic>Larva - physiology</topic><topic>Light</topic><topic>Marine</topic><topic>Neuropeptides - pharmacokinetics</topic><topic>Neuropeptides - pharmacology</topic><topic>Seawater</topic><topic>Time Factors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Katsukura, Yuki</creatorcontrib><creatorcontrib>Ando, Hiroshi</creatorcontrib><creatorcontrib>David, Charles N</creatorcontrib><creatorcontrib>Grimmelikhuijzen, Cornelis J P</creatorcontrib><creatorcontrib>Sugiyama, Tsutomu</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of experimental biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Katsukura, Yuki</au><au>Ando, Hiroshi</au><au>David, Charles N</au><au>Grimmelikhuijzen, Cornelis J P</au><au>Sugiyama, Tsutomu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Control of planula migration by LWamide and RFamide neuropeptides in Hydractinia echinata</atitle><jtitle>Journal of experimental biology</jtitle><addtitle>J Exp Biol</addtitle><date>2004-05</date><risdate>2004</risdate><volume>207</volume><issue>Pt 11</issue><spage>1803</spage><epage>1810</epage><pages>1803-1810</pages><issn>0022-0949</issn><eissn>1477-9145</eissn><abstract>Planula larvae of Hydractinia echinata (Cnidaria) settled on a substratum migrate toward light. 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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Company of Biologists |
| subjects | Animal Migration - drug effects Animals Cnidaria Hydractinia echinata Hydrozoa - physiology Larva - physiology Light Marine Neuropeptides - pharmacokinetics Neuropeptides - pharmacology Seawater Time Factors |
| title | Control of planula migration by LWamide and RFamide neuropeptides in Hydractinia echinata |
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