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1 July 2011 Studies on the Genus Thysananthus (Marchantiophyta, Lejeuneaceae) 3. Terpenoid Chemistry and Chemotaxonomy of Selected Species of Thysananthus and Dendrolejeunea fruticosa
Phiangphak Sukkharak, Agnieszka Ludwiczuk, Yoshinori Asakawa & , Robbert Gradstein
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Abstract

Gas chromatography and mass spectrometry of 20 samples of Thysananthus (T. comosus, T. convolutus, T. retusus, T. spathulistipus) and one of Dendrolejeunea (D. fruticosa) from Malaysia and Thailand revealed the presence in most taxa of large quantities of sesquiterpenoids and unidentified diterpenoids. Isolepidozene was detected as a major component in T. comosus, T. convolutus and T. spathulistipus, pinguisane sesquiterpenoids as major components in T. retusus, and the unidentified (M )304, 271(100). 105(90) as the most abundant component of D. fruticosa. The large chemical heterogeneity detected in T. convolutus correlates with the variation in leaf dentation observed in the species and supports the resurrection of T. gottschei, previously considered a synonym of T. convolutus. The subdivision of Thysananthus into two subgenera, subg. Thysananthus and subg. Sandeanthus, and the treatment of Dendrolejeunea as a separate genus, are chemically supported.

© 2011 Adac. Tous droits réservés
Phiangphak Sukkharak, Agnieszka Ludwiczuk, Yoshinori Asakawa & , and Robbert Gradstein "Studies on the Genus Thysananthus (Marchantiophyta, Lejeuneaceae) 3. Terpenoid Chemistry and Chemotaxonomy of Selected Species of Thysananthus and Dendrolejeunea fruticosa," Cryptogamie, Bryologie 32(3), 199-209, (1 July 2011). https://doi.org/10.7872/cryb.v32.iss3.2011.199
Received: 20 October 2010; Accepted: 1 March 2011; Published: 1 July 2011
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KEYWORDS
Dendrolejeunea fruticosa
diterpenoids
GC-MS
liverwort
sesquiterpenoids
Thysananthus comosus
Thysananthus convolutus
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