Principal component and hierarchical clustering analysis of metabolites in destructive weeds; polygonaceous plants |
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| Authors: | Atsuko Miyagi Hideyuki Takahashi Kentaro Takahara Takayuki Hirabayashi Yoshiki Nishimura Takafumi Tezuka Maki Kawai-Yamada Hirofumi Uchimiya |
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| Institution: | (1) Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan;(2) Iwate Biotechnology Research Center, 22-174-4 Narita, Kitakami Iwate, 024-0003, Japan;(3) Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan;(4) School of Health and Human Life, Nagoya Bunri University, Inazawa 492-8520, Japan;(5) Department of Environmental Science and Human Engineering, Saitama University, 225 Shimo-Okubo, Sakura-Ku, Saitama 338-0825, Japan;(6) Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8, Honcho, Kawaguchi Saitama, 332-0012, Japan; |
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| Abstract: | Comprehensive analysis of metabolites using capillary electrophoresis–mass spectrometry was carried out in harmful weeds belonging
to Polygonaceae. A principal component analysis revealed clear distinctions among eight Rumex species and Fallopia japonica. Hierarchical clustering data showed that respective metabolites can be grouped due to species differences. There was a positive
relationship between oxalate and citrate, oxalate and ascorbate, and oxalate and glutamine. The amount of oxalate per leaf
fresh weight was not affected by increased concentrations of exogenously supplied nutrients from Hoagland’s formulation in
one of the most destructive weeds R. obtusifolius. The oxalate accumulation in this plant is independent of external nutrient level, where nutrient-rich environments apparently
stimulate internal constituents such as amino acids and other metabolites. |
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