{"refrec":{"BRefID":331005,"RR":"<b>Erwin, P.M.; López-Legentil, S.; Turon, X.</b> (2012). Ultrastructure, molecular phylogenetics, and chlorophyll <i>a</i> content of novel cyanobacterial symbionts in temperate sponges. <i>Microb. Ecol. 64(3)</i>: 771-783. <a href=\"https://dx.doi.org/10.1007/s00248-012-0047-5\" target=\"_blank\">https://dx.doi.org/10.1007/s00248-012-0047-5</a>","BEntID":324616,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Microb. Ecol. 64(3)</i>: 771-783. <a href=\"https://dx.doi.org/10.1007/s00248-012-0047-5\" target=\"_blank\">https://dx.doi.org/10.1007/s00248-012-0047-5</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Erwin, P.M.; López-Legentil, S.; Turon, X.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Erwin, P.M.; López-Legentil, S.; Turon, X.","Englishabstract":"Marine sponges often harbor photosynthetic symbionts that may enhance host metabolism and ecological success, yet little is known about the factors that structure the diversity, specificity, and nature of these relationships. Here, we characterized the cyanobacterial symbionts in two congeneric and sympatric host sponges that exhibit distinct habitat preferences correlated with irradiance: <i>Ircinia fasciculata</i> (higher irradiance) and <i>Ircinia variabilis</i> (lower irradiance). Symbiont composition was similar among hosts and dominated by the sponge-specific cyanobacterium <i>Synechococcus spongiarum</i>. Phylogenetic analyses of 16S–23S rRNA internal transcribed spacer (ITS) gene sequences revealed that Mediterranean <i>Ircinia</i> spp. host a specific, novel symbiont clade (“M”) within the <i>S. spongiarum</i> species complex. A second, rare cyanobacterium related to the ascidian symbiont <i>Synechocystis trididemni</i> was observed in low abundance in <i>I. fasciculata</i> and likewise corresponded to a new symbiont clade. Symbiont communities in <i>I. fasciculata</i> exhibited nearly twice the chlorophyll <i>a</i> concentrations of <i>I. variabilis</i>. Further, <i>S. spongiarum</i> clade M symbionts in <i>I. fasciculata</i> exhibited dense intracellular aggregations of glycogen granules, a storage product of photosynthetic carbon assimilation rarely observed in <i>I. variabilis</i> symbionts. In both host sponges, <i>S. spongiarum</i> cells were observed interacting with host archeocytes, although the lower photosynthetic activity of Cyanobacteria in <i>I. variabilis</i> suggests less symbiont-derived nutritional benefit. The observed differences in clade M symbionts among sponge hosts suggest that ambient irradiance conditions dictate symbiont photosynthetic activity and consequently may mediate the nature of host–symbiont relationships. In addition, the plasticity exhibited by clade M symbionts may be an adaptive attribute that allows for flexibility in host–symbiont interactions across the seasonal fluctuations in light and temperature characteristic of temperate environments.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Ultrastructure, molecular phylogenetics, and chlorophyll <i>a</i> content of novel cyanobacterial symbionts in temperate sponges","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-23 01:33:06.961637","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2012,"MonPub":null,"DateUpdate":"2020-11-17","DateCreate":"2020-11-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000309131700018","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s00248-012-0047-5"},"refs":null,"anarec":{"AnaID":331005,"PubliDate":2012,"Pagination":"771-783","XtraPublOfAnaID":null,"ISBN":null,"Volume":"64","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43400,"SerRR":"Microbial Ecology. Springer: New York,.  ISSN 0095-3628; e-ISSN 1432-184X","StandardTitleSer":"Microbial Ecology","ISSN":"0095-3628","AbbrevSer":"Microb. Ecol.","StandardTitleMon":null,"StartPage":771,"Pages":13,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Erwin","Firstname":"Patrick","Initials":"P.M.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":324616,"AutID":78019,"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":"López-Legentil","Firstname":"Susanna","Initials":"S.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":324616,"AutID":67002,"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":"Turon","Firstname":"Xavier","Initials":"X.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":324616,"AutID":43621,"OrderNr":3,"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":[{"DasID":6462,"Acronym":null,"Citation":"Linares, Cristina; Figuerola, Laura; Gómez-Gras, Daniel; Pagès-Escolà, Marta; Olvera, Àngela, Aubach, Àlex; Amate, Roger; Figuerola, Blanca; Kersting, Diego; Ledoux, Jean-Baptiste; López-Sanz, Àngel; López-Sendino, Paula; Medrano, Alba; Garrabou, Joaquim; (2020); CorMedNet- Distribution and demographic data of habitat-forming invertebrate species from Mediterranean coralligenous assemblages between 1882 and 2019","StandardTitle":"CorMedNet- Distribution and demographic data of habitat-forming invertebrate species from Mediterranean coralligenous assemblages between 1882 and 2019.","RelationID":2,"DOI":"10.14284/467"}],"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":355367,"LibID":36,"BRefID":331005,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":null,"ShelfLocCode":"355367","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":"Springer","City":"New York,"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":[{"Collection":"EMODNET","ShortName":"emodnet"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"552":{"SpName":"EMODNET","SpColID":552,"ParSpColID":null,"TopParID":null,"ShortName":"emodnet","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"emodnet"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":324616,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":324616,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.1007/s00248-012-0047-5","externalID":"10.1007/s00248-012-0047-5","URLTypeCode":"DOI","URLID":87988,"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":"Bouchti, Zohra, Z.","newSesDate":{"date":"2020-11-17 06:57:05.000000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2020-11-17 06:57:05.000000","timezone_type":3,"timezone":"Europe/Brussels"}}}