Chemical and Genetic Study of Ligularia cyathiceps in Yunnan Province of China |
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| Authors: | Hajime Nagano Atsushi Torihata Mika Matsushima Ryo Hanai Yoshinori Saito Makiko Baba Yui Tanio Yasuko Okamoto Yuriko Takashima Mayu Ichihara Xun Gong Chiaki Kuroda Motoo Tori |
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| Institution: | 1. Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo‐ku, Tokyo 112‐8610, Japan;2. Department of Chemistry, Rikkyo University, Nishi‐Ikebukuro, Toshima‐ku, Tokyo 171‐8501, Japan, (phone/fax: +81‐339852396);3. Department of Life Science, Rikkyo University, Nishi‐Ikebukuro, Toshima‐ku, Tokyo 171‐8501, Japan, (phone/fax: +81‐339852377);4. Corresponding author for genetic aspects of the work.;5. Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro‐cho, Tokushima, 770‐8514, Japan (phone: +81‐886028462, fax: +81‐886553051);6. Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, P.?R. China, (phone: +86‐8715223625);7. Corresponding author for taxonomy.;8. Research Center for Smart Molecules, Rikkyo University, Nishi‐Ikebukuro, Toshima‐ku, Tokyo 171‐8501, Japan;9. Corresponding author for general information.;10. Corresponding author for chemical aspects of the work. |
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| Abstract: | Root chemicals and evolutionarily neutral DNA regions in L. cyathiceps samples collected in the Zhongdian (Shangrila) County of Yunnan, P. R. China, were examined. Twenty compounds were isolated, including three new ones, 1β,10β‐epoxy‐6β‐(propionyloxy)furanoeremophilan‐9‐one ( 6 ), 1β,10β‐epoxy‐8α‐ethoxyeremophila‐6,11‐diene ( 14 ), and 11αH‐6β‐isobutyryloxy‐1β,10β,7β,8β‐diepoxyeremophilan‐12,8α‐olide ( 15 ). The chemical diversity was found to be limited, with cacalol ( 1 ) and 6‐(acyloxy)furanoeremophilan‐9‐ones ( 4 and/or 5 ) being major components in all the samples. The nuclear ribosomal RNA gene was also found to harbor little variation, although two distinct sequence types were found for the plastid atpB‐rbcL intergenic region. |
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| Keywords: | Ligularia cyathiceps Eremophilanes Diversity |
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