Allelopathic activity of luteolin 7-O-β-glucuronide isolated from Chrysanthemum morifolium L. |
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| Institution: | 1. College of Life Sciences and Engineering, Shaanxi University of Technology, Hanzhong 723001, PR China;2. Key Laboratory of Resource Biology and Biotechnology in Western China (Ministry of Education), College of Life Sciences, Northwest University, Xi''an 710069, PR China;3. College of Life Sciences, Shaanxi Normal University, Xi''an 710119, PR China;4. College of Life Sciences and Technology, Tongji University, Shanghai 200092, PR China;1. Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), China Pharmaceutical University, Nanjing, 210009, China;2. Department of Medical Science, Shunde Polytechnic College, Shunde, Guangdong, 528333, China;3. Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, China;1. School of Pharmacy, Qiqihar Medical University, Qiqihar 161006, China;2. School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China;1. School of Nuclear Engineering, Purdue University, West Lafayette, Indiana 47907;2. Carl Zeiss Microscopy, LLC, One Corporation Way, Peabody, MA 01960;3. Department of Mathematics, Southern Methodist University, Dallas, TX 75275;1. Dipartimento di Scienze, Università Roma Tre, Rome, Italy;2. ESRF, Grenoble, France;3. LPEM-UMR8213/CNRS-ESPCI Paris Tech, Paris, France;4. Saint Petersburg State University, St. Petersburg, Russia;5. MAX IV Laboratory, University of Lund, Lund, Sweden;6. SPIN-CNR, Roma, Italy;1. INRIM, Electromagnetics Division, Strada delle Cacce 91, 10135 Torino (TO), Italy;2. Università degli Studi di Torino, Dipartimento di Chimica, via P. Giuria 7, 10125 Torino (TO), Italy |
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| Abstract: | Two flavones, luteolin 7-O-β-glucuronide and diosmetin 7-O-β-glucuronide, were isolated and identified from Chrysanthemum morifolium L. v. Ramat leaves. Identification techniques included HPLC DAD, MS, 1H and 13C NMR spectroscopy. At concentrations of 0.2 and 2.0 mM, luteolin 7-O-β-glucuronide significantly reduced the frond number and chlorophyll content of Lemna gibba plants, but did not significantly affect dry weight. At a concentration of 0.2 mM diosmetin 7-O-β-glucuronide had no significant effect on frond number, dry weight or chlorophyll concentration of L. gibba. These results indicate that an ortho-3′,4′-dihydroxy arrangement of the B-flavonoid ring in the luteolin compound is probably responsible for allelopathic activity. |
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