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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
Peer-reviewed Journal Articles, etc >
Zoosporicidal activities of anacardic acids against Aphanomyces cochlioides.
| Title: | Zoosporicidal activities of anacardic acids against Aphanomyces cochlioides. |
| Authors: | Begum, Parvin Browse this author | | Hashidoko, Yasuyuki Browse this author →KAKEN DB | | Islam, Md Tofazzal Browse this author | | Ogawa, Yuko Browse this author | | Tahara, Satoshi Browse this author |
| Keywords: | Anacardic Acids | | Ginkgo biloba | | Zoospore Lysis |
| Issue Date: | Sep-2002 |
| Publisher: | Verlag der Zeitschrift für Naturforschung |
| Journal Title: | Zeitschrift für Naturforschung. C, Journal of biosciences |
| Volume: | 57 |
| Issue: | 9-10 |
| Start Page: | 874 |
| End Page: | 882 |
| PMID: | 12440727 |
| Abstract: | The EtOAc soluble constituents of the unripe fruits of Ginkgo biloba showed motility inhibition followed by lysis of zoospores of the phytopathogenic Aphanomyces cochlioides. We purified 22:1-omega7-anacardic acid (1), 24:1-omega9-anacardic acid (2) and 22:0-anacardic acid (3), together with other related compounds, 21:1-omega7-cardol (4) and 21:1-omega7-cardanol (5) from the crude extracts of Ginkgo fruits. Amongst them, compound 1 was a major active agent in quality and quantity, and showed potent motility inhibition (98% in 30 min) followed by lysis (55% in 3 h) of the zoospores at 1 x 10(-7) M. The 2-O-methyl derivative (1-c) of 1 displayed antibacterial activity against Bacillus subtilis, but practically inactive to Escherichia coli. A brief study on structure-activity relationships revealed that a carboxyl group on the aromatic ring and an unsaturated side chain in the anacardic acid derivative are important for strong motility inhibitory and lytic activities against the zoospore. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/45252 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 橋床 泰之
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