{"refrec":{"BRefID":117765,"RR":"<b>Neusser, T.P.; Heß, M.; Haszprunar, G.; Schrödl, M.</b> (2007). Sperm ultrastructure of <i>Microhedyle remanei</i>, an interstitial acochlidian gastropod with dermal fertilization. <i>J. Mar. Biol. Ass. U.K. 87(3)</i>: 747-754. <a href=\"https://dx.doi.org/10.1017/S0025315407055750\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315407055750</a>","BEntID":112066,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Mar. Biol. Ass. U.K. 87(3)</i>: 747-754. <a href=\"https://dx.doi.org/10.1017/S0025315407055750\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315407055750</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Neusser, T.P.; Heß, M.; Haszprunar, G.; Schrödl, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Neusser, T.P. <i>et al.</i>","Englishabstract":"The ultrastructure of sperm of an acochlidian opisthobranch is described for the first time in detail, in the tiny, gonochoristic <i>Microhedyle remanei</i> (Microhedylidae) from Bermuda. Transmission electron microscopy (TEM) shows the spermatozoa of <i>M. remanei</i> sharing many plesiomorphic features with opisthobranch gastropods, such as having an apical spiral nucleus with a basal invagination filled with a bell-shaped centriolar derivative; there is a single glycogen helix embedded into matrix and paracrystalline material. Sperm of <i>M. remanei</i> are characterized by possessing a strongly helically coiled nucleus with up to five keels terminating into one very prominent and intertwined keel. The sperm midpiece shows the glycogen helix which is very densely arranged. This clearly differs from <i>Hedylopsis ballantinei</i>, a member of the related acochlidian family Hedylopsidae, where three glycogen helices with different lengths and a probably much shorter nucleus are present. This variation among acochlidian sperm may be phylogenetically relevant and may be related to special acochlidian reproductive features such as sperm transfer via hypodermic injection or dermal fertilization via spermatophores.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Sperm ultrastructure of <i>Microhedyle remanei</i>, an interstitial acochlidian gastropod with dermal fertilization","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-22 01:31:10.093429","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2007,"MonPub":null,"DateUpdate":"2020-10-26","DateCreate":"2007-12-10","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000247354100015","VABBcode":null,"OpenAcc":0,"DOI":"10.1017/S0025315407055750"},"refs":null,"anarec":{"AnaID":117765,"PubliDate":2007,"Pagination":"747-754","XtraPublOfAnaID":null,"ISBN":null,"Volume":"87","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43277,"SerRR":"Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge.  ISSN 0025-3154; e-ISSN 1469-7769","StandardTitleSer":"Journal of the Marine Biological Association of the United Kingdom","ISSN":"0025-3154","AbbrevSer":"J. Mar. Biol. Ass. U.K.","StandardTitleMon":null,"StartPage":747,"Pages":8,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Neusser","Firstname":"Timea","Initials":"T.P.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":112066,"AutID":77661,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Heß","Firstname":null,"Initials":"M.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":112066,"AutID":27670,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Haszprunar","Firstname":"Gerhard","Initials":"G.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":112066,"AutID":77662,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Schrödl","Firstname":"Michael","Initials":"M.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":112066,"AutID":1622,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":353613,"LibID":36,"BRefID":117765,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":null,"ShelfLocCode":"353613","RFID":null,"PaidValue":null,"Medium":"Server","Description":"Interne VLIZ documenten","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Non-open access","URL":null,"ClassifID":228,"Classification":"Non-open access","ReqLink":1,"ClassifTypID":3,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":1,"InternalReq":1,"LoggedInReq":1,"Disclaimer":"Disclaimer_VLIZ_Intern","DutchDisclaimer":"<p>Deze publicatie is enkel beschikbaar voor persoonlijk gebruik binnen de Innovocean site <br />en mag op geen enkele manier verder worden verspreid.</p>","FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Cambridge University Press","City":"Cambridge"},{"PublName":"Marine Biological Association of the United Kingdom","City":"Cambridge"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":null,"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":112066,"AbstractFlag":-1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":112066,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1017/S0025315407055750","externalID":"10.1017/S0025315407055750","URLTypeCode":"DOI","URLID":9201,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Chisala, Chilekwa, C.","newSesDate":{"date":"2007-12-10 10:17:16.327000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2020-10-26 06:47:16.007000","timezone_type":3,"timezone":"Europe/Brussels"}}}