Chemotypes and Biomarkers of Seven Species of New Caledonian Liverworts from the Bazzanioideae Subfamily
|Author(s)||Metoyer Benjamin1, Lebouvier Nicolas1, Hnawia Edouard1, Herbette Gaetan2, Thouvenot Louis3, Asakawa Yoshinori4, Nour Mohammed1, Raharivelomanana Phila5|
|Affiliation(s)||1 : Univ Nouvelle Caledonie, Inst Sci Exactes & Appl ISEA EA 7484, Noumea 98851, New Caledonia.
2 : Aix Marseille Univ, CNRS, Cent Marseille, FSCM,Spectropole,Serv 511, Campus St Jerome, F-13397 Marseille 20, France.
3 : 11 Rue St Leon, F-66000 Perpignan, France.
4 : Tokushima Bunri Univ, Fac Pharmaceut Sci, Tokushima 7708514, Japan.
5 : Univ Polynesie Francaise, UMR EJO 241, F-98702 Tahiti, French Polynesi, France.
|Source||Molecules (1420-3049) (Mdpi), 2018-06 , Vol. 23 , N. 6 , P. 1353 (27p.)|
|WOS© Times Cited||2|
|Note||This article belongs to the Section Natural Products Chemistry|
|Keyword(s)||liverwort, Bazzania, Acromastigum, sesquiterpene, diterpene, bis(bibenzyl), biosynthesis, zierane, vittatin|
Volatile components of seven species of the Bazzanioideae sub-family (Lepidoziaceae) native to New Caledonia, including three endemic species (Bazzania marginata, Acromastigum caledonicum and A. tenax), were analyzed by GC-FID-MS in order to index these plants to known or new chemotypes. Detected volatile constituents in studied species were constituted mainly by sesquiterpene, as well as diterpene compounds. All so-established compositions cannot successfully index some of them to known chemotypes but afforded the discovery of new chemotypes such as cuparane/fusicoccane. The major component of B. francana was isolated and characterized as a new zierane-type sesquiterpene called ziera-12(13), 10(14)-dien-5-ol (23). In addition, qualitative intraspecies variations of chemical composition were very important particularly for B. francana which possessed three clearly defined different compositions. We report here also the first phytochemical investigation of Acromastigum species. Moreover, crude diethyl ether extract of B. vitatta afforded a new bis(bibenzyl) called vittatin (51), for which a putative biosynthesis was suggested.