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Botanica Marina

Editor-in-Chief: Dring, Matthew

Editorial Board Member: Enriquez Dominguez, Susana / Heimann, Kirsten / Pang, Ka-Lai / Pohnert, Georg / Poulin, Michel / Amsler, Charles D. / Beardall, John / Berges, John A. / Dawes, Clinton J. / Hoppenrath, Mona / Wynne, Michael J.

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Antifeedant, antibacterial, and antilarval compounds from the South China Sea seagrass Enhalus acoroides

Shu-Hua Qi1 / Si Zhang2 / Pei-Yuan Qian3 / Bin-Gui Wang4

1Key Laboratory of Marine Bio-Resources' Sustainable Utilization, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, PR China

2Key Laboratory of Marine Bio-Resources' Sustainable Utilization, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, PR China

3Department of Biology – CML, Hong Kong University of Science and Technology, Clearwater Bay, KLN, Hong Kong, PR China

4Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Nanhai Road 7, Qingdao 266071, China

Corresponding author

Citation Information: Botanica Marina. Volume 51, Issue 5, Pages 441–447, ISSN (Online) 1437-4323, ISSN (Print) 0006-8055, DOI: 10.1515/BOT.2008.054, October 2008

Publication History

Received:
2007-11-01
Accepted:
2008-06-19
Published Online:
2008-10-08

Abstract

We investigated chemical constituents and the antifeedant, antibacterial, and antilarval activities of EtOH (ethanol) extracts of the South China Sea seagrass Enhalus acoroides. Eleven pure compounds including four flavonoids and five steroids were obtained. Among these compounds, three flavonoids were antifeedant against second-instar larvae of Spodoptera litura, two flavonoids had antibacterial activity towards several marine bacteria, and one flavonoid showed strong antilarval activity against Bugula neritina larvae. This is the first description of isolation and bioactivity of secondary metabolites from E. acoroides.

Keywords: bioactivity; chemical constituents; Enhalus acoroides; seagrass

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