{"refrec":{"BRefID":300048,"RR":"<b>Sinninghe Damsté, J.S.; Rijpstra, W.I.C.; Foesel, B.U.; Huber, K.J.; Overmann, J.; Nakagawa, S.; Kim, J.J.; Dunfield, P.F.; Dedysh, S.N.; Villanueva, L.</b> (2018). An overview of the occurrence of ether- and ester- linked <i>iso</i>-diabolic acid membrane lipids in microbial cultures of the Acidobacteria: Implications for brGDGT paleoproxies for temperature and pH. <i>Org. Geochem. 124</i>: 63-76. <a href=\"https://doi.org/10.1016/j.orggeochem.2018.07.006\" target=\"_blank\">https://doi.org/10.1016/j.orggeochem.2018.07.006</a>","BEntID":292267,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Org. Geochem. 124</i>: 63-76. <a href=\"https://doi.org/10.1016/j.orggeochem.2018.07.006\" target=\"_blank\">https://doi.org/10.1016/j.orggeochem.2018.07.006</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Sinninghe Damsté, J.S.; Rijpstra, W.I.C.; Foesel, B.U.; Huber, K.J.; Overmann, J.; Nakagawa, S.; Kim, J.J.; Dunfield, P.F.; Dedysh, S.N.; Villanueva, L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Sinninghe Damsté, J.S. <i>et al.</i>","Englishabstract":"13,16-Dimethyl octacosanedioic acid (<i>iso</i>-diabolic acid) is a major membrane-spanning lipid of subdivisions (SDs) 1, 3 and 4 of the Acidobacteria, a highly diverse phylum within the Bacteria. It has been suggested that these lipids are potential building blocks for the orphan bacterial glycerol dialkyl glycerol tetraethers (GDGT) that occur widely in a variety of environmental settings. Here, we expand the knowledge on the occurrence of <i>iso</i>-diabolic acid in Acidobacteria by examining the lipid composition of six strains belonging to SDs 6, 8, 10, and 23 of the Acidobacteria, not previously analyzed for these lipids. In addition, we examined 12 new strains belonging to SDs 1, 3 and 4. Acid hydrolysis of total cell material released <i>iso</i>-diabolic acid in substantial quantities (25–39% of all fatty acids) from the strains of SDs 1 and 3 (except “<i>Candidatus</i> Solibacter usitatus), and, for the first time, strains of SD 6 (6–25%), but not from SDs 8, 10, and 23. The monoglycerol ether derivative of <i>iso</i>-diabolic acid was only dominantly present in SD 4 strains (17–34%), indicating that the occurrence of ether-bound <i>iso</i>-diabolic acid is mainly restricted to SD 4 species. Methylated <i>iso</i>-diabolic acid derivatives were encountered in SDs 1, 3, 4, and 6, but only SD 4 species produced 5-methyl <i>iso</i>-diabolic acid derivatives, whereas the other SDs formed 6-methyl <i>iso</i>-diabolic acids. This suggests that the position of methylation of <i>iso</i>-diabolic acid may be controlled by the phylogenetic affiliation within the Acidobacteria and thus may not be a direct but an indirect response environmental to environmental conditions as inferred from the bacterial GDGT distributions in soil, peat and rivers","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"An overview of the occurrence of ether- and ester- linked <i>iso</i>-diabolic acid membrane lipids in microbial cultures of the Acidobacteria: Implications for brGDGT paleoproxies for temperature and pH","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:32:52.928458","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Acidobacteria; Membrane lipids; Iso-diabolic acid; brGDGTs; Bacteria; Methylation","OtherDescriptors":null,"Notes":null,"AnaPub":2018,"MonPub":null,"DateUpdate":"2018-08-02","DateCreate":"2018-08-02","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000443952100006","VABBcode":null,"OpenAcc":1,"DOI":"10.1016/j.orggeochem.2018.07.006"},"refs":null,"anarec":{"AnaID":300048,"PubliDate":2018,"Pagination":"63-76","XtraPublOfAnaID":null,"ISBN":null,"Volume":"124","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":111331,"SerRR":"Organic Geochemistry. Elsevier: Oxford; New York.  ISSN 0146-6380; e-ISSN 1873-5290","StandardTitleSer":"Organic Geochemistry","ISSN":"0146-6380","AbbrevSer":"Org. Geochem.","StandardTitleMon":null,"StartPage":63,"Pages":14,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Sinninghe Damsté","Firstname":"Jaap","Initials":"J.S.","Affiliation":"MMB","Discriminator":null,"CorporateFlag":0,"BEntID":292267,"AutID":214917,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"MMB","InsFSN":"Koninklijk Nederlands Instituut voor Onderzoek der Zee; Marine Microbiology and Biogeochemistry","ORCID":"0000-0002-8683-1854","PersID":29942,"InsID":13655},{"AutName":"Rijpstra","Firstname":"W. 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