| Title: | Selective bactericidal potential of rice (Oryza sativa L. var. japonica) hull extract on Microcystis strains in comparison with green algae and zooplankton |
| Author(s): | Park MH; Kim BH; Chung IM; Hwang SJ; |
| Address: | "Department of Environmental Science, Konkuk University, Seoul, Korea" |
| Journal Title: | Bull Environ Contam Toxicol |
| DOI: | 10.1007/s00128-009-9732-6 |
| ISSN/ISBN: | 1432-0800 (Electronic) 0007-4861 (Linking) |
| Abstract: | "We examined the selective inhibitory potential of rice hull extract on the toxic cyanobacterium Microcystis aeruginosa, in comparison with inhibitory effects on two green algae (Ankistrodesmus convolutus and Scenedesmus quadricauda) and a zooplankton (Daphnia magna) species. The inhibitory effect of rice hull extract, measured by algal growth or zooplankton survival using four different concentrations of extract (1, 10, 100 and 1000 microg L(-1)), was highest on Microcystis strains (average: 98%, range: 95%-99%), followed by D. magna (average: 22%, range: 10%-47%), A. convolutus (average: 20%, range: 16%-24%), and S. quadricauda (average: 8%, range: 0%-15%). Rice hull extract had only a small effect on the growth of the green algae and Daphnia, particularly in the range 1-100 microg L(-1), and the inhibitory effect was somewhat diminished even at the 1,000 microg L(-1) level, at the end of the experimental period, especially for Daphnia. Our study indicates that rice hull extract has a strong specific algicide potential when used to combat M. aeruginosa" |
| Keywords: | Animals Chlorophyta/drug effects/growth & development Daphnia/drug effects/growth & development Microcystis/*drug effects/growth & development Oryza/*toxicity Pheromones/toxicity; |
| Notes: | "MedlinePark, Myung-Hwan Kim, Baik-Ho Chung, Ill-Min Hwang, Soon-Jin eng Comparative Study Research Support, Non-U.S. Gov't 2009/05/13 Bull Environ Contam Toxicol. 2009 Jul; 83(1):97-101. doi: 10.1007/s00128-009-9732-6. Epub 2009 May 12" |
