title: Chemical relationships between liverworts of the family Lejeuneaceae (Porellales, Jungermanniopsida).
abstract: The major purpose of this study was to determine the chemical relationships between liverwort species belonging to the Lejeuneaceae family on the basis of sesqui- and diterpenoid composition. GC/MS analysis of the 31 liverwort specimens belonging to the Lejeuneaceae family indicated variability of the chemical composition of terpenoids depending on liverwort species. Each of the analyzed liverworts is characterized by the presence of particular compounds. However, there are some characteristic components, which can be chemical markers of this liverwort family. These are the pinguisane and monocyclofarnesane type sesquiterpenoids, the fusicoccane type diterpenoids, and also the sesquiterpene hydrocarbon, isolepidozene. Chemical data also showed the differences among liverworts classified in the two subfamilies, the Ptychanthoideae and Lejeuneoideae. All of the mentioned characteristic components are present in species of the subfamily Ptychanthoideae. On the other hand, among the characteristic components, only beta-pinguisene was detected in Cololejeunea stotleriana, Colura irrorata, and Myriocoleopsis gymnocolea classified in the subfamily Lejeuneoideae (subtribe Cololejeuneinae). The latter component was found to be a marker for members of the subtribe Cololejeuneinae. Neither isolepidozene nor the pinguisanes, fusicoccanes and monocyclofarnesanes were found in Lejeunea topoensis (subfamily Lejeuneoideae). The existence of the chemical polymorphism between both subfamilies is also evident from PCA analysis.
authors.affiliation: Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland. aludwiczuk@pharmacognosy.org
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Ludwiczuk
authors.affiliation: Department of Biology, Faculty of Science, Burapha University, 169 Long-Hard Bangsaen Road, Saen Sook Sub-district, Mueang District, 20131 Chonburi, Thailand.
authors.forename: Phiangphak
authors.initials: P
authors.lastname: Sukkharak
authors.affiliation: Museum National d'Histoire Naturelle, Dept. Systematique et Evolution, CP 39, 57 rue Cuvier, 75231 Paris cedex 05, France.
authors.forename: Robbert
authors.initials: R
authors.lastname: Gradstein
authors.affiliation: Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan.
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Asakawa
authors.affiliation: Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland.
authors.forename: Kazimierz
authors.initials: K
authors.lastname: Glowniak
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D035926:Hepatophyta / Q000737:chemistry*