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Yuriko Takashima
Tokushima Bunri University
7Publications
4H-index
106Citations
Publications 7
Newest
Published on Aug 1, 2017in Phytochemistry 2.90
Yoshinori Saito12
Estimated H-index: 12
(Nagasaki University),
Mayu Ichihara5
Estimated H-index: 5
(Tokushima Bunri University)
+ 5 AuthorsMotoo Tori31
Estimated H-index: 31
(Tokushima Bunri University)
Abstract Three natural hybrids and an introgressed individual of Ligularia were evaluated based on a combination of morphology, root chemicals, and nucleotide sequences of evolutionally neutral regions to understand the chemical outcomes of hybridization and introgression. Six previously undescribed eremophilane sesquiterpenes were isolated from hybrids between L. cyathiceps and L. lamarum / L. subspicata , and benzofurans were isolated from L. subspicata for the first time. Their structures wer...
Published on Jul 1, 2016in Natural Product Communications 0.55
Yoshinori Saito12
Estimated H-index: 12
(Nagasaki University),
Yuriko Takashima4
Estimated H-index: 4
(Tokushima Bunri University)
+ 4 AuthorsMotoo Tori2
Estimated H-index: 2
(Tokushima Bunri University)
Published on Feb 1, 2014in Tetrahedron 2.38
Yoshinori Saito12
Estimated H-index: 12
(Tokushima Bunri University),
Yuriko Takashima4
Estimated H-index: 4
(Tokushima Bunri University)
+ 9 AuthorsXun Gong23
Estimated H-index: 23
(Kunming Institute of Botany)
Published on Dec 1, 2012in Tetrahedron 2.38
Yoshinori Saito12
Estimated H-index: 12
(Tokushima Bunri University),
Yuriko Takashima4
Estimated H-index: 4
(Tokushima Bunri University)
+ 9 AuthorsXun Gong23
Estimated H-index: 23
(CAS: Chinese Academy of Sciences)
Root chemicals and DNA sequences were analyzed for Ligularia virgaurea collected in the northern Sichuan Province and adjacent areas of China. Thirty-eight samples were found to contain five chemotypes, two known and three new ones. From samples of the new chemotypes, 13 new compounds were isolated, including 3 sesquiterpene dimers and some rearranged eremophilanes. The DNA sequences suggested that the chemotype differentiation had a genetic origin. (C) 2012 Elsevier Ltd. All rights reserved.
Published in ChemInform
Yoshinori Saito12
Estimated H-index: 12
(Tokushima Bunri University),
Yuriko Takashima4
Estimated H-index: 4
(Tokushima Bunri University)
+ -3 AuthorsMotoo Tori2
Estimated H-index: 2
(Tokushima Bunri University)
Published on Mar 1, 2011in Tetrahedron 2.38
Yoshinori Saito12
Estimated H-index: 12
(Tokushima Bunri University),
Masato Hattori2
Estimated H-index: 2
(Rikkyo University)
+ 11 AuthorsXun Chao2
Estimated H-index: 2
(Rikkyo University)
Root chemicals and DNA sequences were analyzed for Ligularia lamarum samples collected in Yunnan and Sichuan Provinces of China and the relationship between the plant and Ligularia subspicata, its taxonomically closest species, was examined. Both species produce furanoeremophilanes and eremophilan-8-one derivatives as the major components. Eleven new compounds, including a new seco-bakkane compound, were isolated. The two species were found to harbor overlapping intra-specific diversities with r...
Published on Oct 1, 2009in Helvetica Chimica Acta 1.39
Hajime Nagano16
Estimated H-index: 16
(Ochanomizu University),
Atsushi Torihata6
Estimated H-index: 6
(Rikkyo University)
+ 10 AuthorsMayu Ichihara5
Estimated H-index: 5
(Tokushima Bunri University)
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, 1 beta,10 beta-epoxy-6 beta-(propionyloxy)furanoeremophilan-9-one (6), 1 beta,10 beta-epoxy-8 alpha-ethoxyeremophila-6,11-diene (14), and 11 alpha H-6 beta-isobutyryloxy-1 beta,10 beta,7 beta,8 beta-diepoxyeremophilan-12,8 alpha-olide (15). The chemical diversity was found to b...
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