Allelopathic Potential of Potamogeton pusillus Community Against Microcystis aeruginosa

Fumihiko TAKEDA; Kazunori NAKANO; Osamu NISHIMURA; Yoshihiko SHIMADA; Shota FUKURO; Hitoshi TANAKA; Norio HAYASHI; Yuhei INAMORI

doi:10.2965/jwet.2011.21

Journal of Water and Environment Technology

Online ISSN : 1348-2165
ISSN-L : 1348-2165

Original Papers

Allelopathic Potential of Potamogeton pusillus Community Against Microcystis aeruginosa

Fumihiko TAKEDA, Kazunori NAKANO, Osamu NISHIMURA, Yoshihiko SHIMADA, Shota FUKURO, Hitoshi TANAKA, Norio HAYASHI, Yuhei INAMORI

Author information

Fumihiko TAKEDA
Graduate School of Engineering, Tohoku University, Japan
Kazunori NAKANO
Graduate School of Engineering, Tohoku University, Japan
Osamu NISHIMURA
Graduate School of Engineering, Tohoku University, Japan
Yoshihiko SHIMADA
Technology Development Division, Fujita Corporation, Japan
Shota FUKURO
Technology Development Division, Fujita Corporation, Japan
Hitoshi TANAKA
Center for Environmental Science in Saitama, Japan
Norio HAYASHI
National History Museum and Institute, Chiba, Japan
Yuhei INAMORI
Faculty of Symbiotic Systems Science, Fukushima University, Japan

Corresponding author

ORCID

Keywords: allelopathy, Microcystis aeruginosa, Potamogeton pusillus

JOURNAL FREE ACCESS

2011 Volume 9 Issue 1 Pages 21-28

DOI https://doi.org/10.2965/jwet.2011.21

Details

Published: 2011 Received: May 10, 2010 Available on J-STAGE: March 31, 2011 Accepted: October 14, 2010 Advance online publication: - Revised: -

Abstract

Allelopathic potential by a submerged macrophyte Potamogeton pusillus against Microcystis aeruginosa in actual ponds was evaluated. The culture filtrate of P. pusillus inhibited the growth of M. aeruginosa, suggesting that P. pusillus released allelochemicals. For the evaluation of allelopathic potential in actual ponds, water samples collected in and out of vegetated mesocosm were examined by a novel bioassay method. Also, allelopathic potential of water obtained from vegetated and unvegetated mesocosm was compared. As a result, water in P. pusillus-vegetated mesocosm showed an obvious growth-inhibiting effect on M. aeruginosa but not in unvegetated mesocosm and out of mesocosm. The water obtained from two ponds, Yamanokami and Bessho Pond, confirmed these effects. The results indicated allelopathic effect by P. pusillus community worked in actual ponds or lakes and the effect lasted as long as P. pusillus inhabited.

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