{"refrec":{"BRefID":34299,"RR":"<b>Chiovitti, A.; Kraft, G.T.; Bacic, A.; Craik, D.J.; Liao, M.-L.</b> (2001). Chemistry, properties, and phylogenetic implications of the methylated carrageenans from red algae of the genus <i>Areschougia</i> (Areschougiaceae, Gigartinales, Rhodophyta). <i>J. Phycol. 37(6)</i>: 1127-1137. <a href=\"https://dx.doi.org/10.1046/j.1529-8817.2001.01086.x\" target=\"_blank\">https://dx.doi.org/10.1046/j.1529-8817.2001.01086.x</a>","BEntID":34299,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>J. Phycol. 37(6)</i>: 1127-1137. <a href=\"https://dx.doi.org/10.1046/j.1529-8817.2001.01086.x\" target=\"_blank\">https://dx.doi.org/10.1046/j.1529-8817.2001.01086.x</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Chiovitti, A.; Kraft, G.T.; Bacic, A.; Craik, D.J.; Liao, M.-L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Chiovitti, A. <i>et al.</i>","Englishabstract":"The three Australian-endemic species comprising the genus <i>Areschougia</i> have been examined to determine the structure of their nonfibrillar wall components. The polysaccharide extracted from the most widely distributed species, <i>A. congesta</i> (Turner) J. Agardh, was shown by compositional analyses, Fourier transform infrared (FTIR) spectroscopy, linkage analysis, and <sup>13</sup>C-NMR spectroscopy to be a carrageenan composed predominantly of the repeating disaccharides 6′-<i>O</i>-meth- ylcarrabiose 2,4′-disulfate, carrabiose 2,4′-disulfate (the repeating unit of ι-carrageenan), 4′,6′-<i>O</i>-(1-carboxyethylidene)carrabiose 2-sulfate, and 6′-<i>O</i>-methylcarrabiose 2-sulfate. The carrageenan also contained small amounts of 4-linked Gal<i>p</i> residues, some bearing methyl ether substitution at O-3 and some possibly bearing sulfate ester and/or glycosyl substitutions at O-3. The <i>A. congesta</i> carrageenan had unique rheological properties, its gels having some similarities to those of commercial ι-carrageenan but with the viscosity of commercial λ-carrageenan. Polysaccharides from <i>A. ligulata</i> Harvey ex J. Agardh and <i>A. stuartii</i> Harvey were shown by constituent sugar and FTIR analyses to be sulfated galactans rich in mono-<i>O</i>-methylgalactose. The carrageenan structures of <i>Areschougia</i> spp. were consistent with those of the genera <i>Rhabdonia</i>, <i>Erythroclonium</i>, and <i>Austroclonium</i>, the other genera constituting the family Areschougiaceae.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Chemistry, properties, and phylogenetic implications of the methylated carrageenans from red algae of the genus <i>Areschougia</i> (Areschougiaceae, Gigartinales, Rhodophyta)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-14 01:31:06.046613","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":"Gel texture profile analysis; polysaccharides structure; sulfated glactan","Notes":null,"AnaPub":2001,"MonPub":null,"DateUpdate":"2022-02-03","DateCreate":"2003-04-28","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000173029500024","VABBcode":null,"OpenAcc":0,"DOI":"10.1046/j.1529-8817.2001.01086.x"},"refs":null,"anarec":{"AnaID":34299,"PubliDate":2001,"Pagination":"1127-1137","XtraPublOfAnaID":null,"ISBN":null,"Volume":"37","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43251,"SerRR":"Journal of Phycology. 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