TY - JOUR T1 - Betaine distribution in the Labiatae JF - Biochem Syst Ecol Y1 - 1996 A1 - G Blunden A1 - MH Yang A1 - ZX Yuan A1 - BE Smith A1 - A Patel A1 - JA Cegarra A1 - I Mathe A1 - G Janicsak SP - 71–81 KW - Betaines KW - Chemotaxonomy KW - Dragendorff-Positive Compounds KW - Labiatae KW - Marine-Algae KW - Quantitative Estimation KW - Quaternary Ammonium AB - Seventy-nine species and three hybrids of Labiatae have been examined for the presence of betaines, which were isolated from and characterised for all the plants tested in six of the eight subfamilies (Ajugoideae, Teucrioideae, Viticoideae, Lamioideae, Pogostemonoideae and Scutellarioideae). However, unlike the Lamioideae, all species of which had relatively high betaine levels, those members tested of the other major subfamily, the Nepetoideae, either gave low betaine yields or these compounds were not detected. The three species examined representing the Chloanthoideae contained compounds which reacted with Dragendorff's reagent, but their structures could not be determined because of the small quantities isolated.The betaines found in different species of the same genus were very similar, supporting the view that these compounds have taxonomic significance at the generic level. VL - 24 UR - http://apps.isiknowledge.com/InboundService.do?product=WOS&action=retrieve&SrcApp=Papers&UT=A1996TZ60000009&SID=2AFL5dnj5MCc8JPedL5&SrcAuth=mekentosj&mode=FullRecord&customersID=mekentosj&DestFail=http%253A%252F%252Faccess.isiproducts.com%252Fcustom_image ER -