Testing addition of Pseudomonas fluorescens HYK0210-SK09 to mitigate blooms of the diatom Stephanodiscus hantzschii in small- and large-scale mesocosms SCIE SCOPUS

Cited 19 time in WEB OF SCIENCE Cited 22 time in Scopus
Title
Testing addition of Pseudomonas fluorescens HYK0210-SK09 to mitigate blooms of the diatom Stephanodiscus hantzschii in small- and large-scale mesocosms
Author(s)
Jung, Seung Won; Kang, Yoon-Ho; Katano, Toshiya; Kim, Baik-Ho; Cho, Soo-Yeon; Lee, Jin Hwan; Kim, Young-Ok; Han, Myung-Soo
KIOST Author(s)
Jung, Seung Won(정승원)Kim, Young Ok(김영옥)
Publication Year
2010-08
Abstract
An algicidal bacterium Pseudomonas fluorescens HYK0210-SK09 (SK09) was applied to a natural bloom of Stephanodiscus hantzschii using a small-scale mesocosm (SM) and a large-scale mesocosm (LM) to clarify the algicidal effects and evaluate the response of the planktonic community and environments. When SK09 cells were inoculated at a final concentration of 5 x 10(6) cells mL(-1), the abundance of S. hantzschii decreased significantly by 95% in SM and 85% in LM. The microcosm in the laboratory revealed that the abundance of Pseudomonas increased rapidly after inoculation with a corresponding decrease in the S. hantzschii population. Nutrient concentrations increased following the decline in the diatom cells. The abundances of nondominant species such as Chlamydomonas, Cryptomonas, and Navicula increased slightly with increased nutrient concentrations. The abundance of heterotrophic protists also increased significantly due to utilization of SK09 as food. The present study demonstrates that SK09 is an effective biocontrol agent for natural S. hantzschii bloom, and grazing pressure plays a crucial role in the successful application of algicidal bacteria to natural environments.
ISSN
0921-8971
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4059
DOI
10.1007/s10811-009-9473-2
Bibliographic Citation
JOURNAL OF APPLIED PHYCOLOGY, v.22, no.4, pp.409 - 419, 2010
Publisher
SPRINGER
Subject
ALGAL BLOOMS; MICROCYSTIS-AERUGINOSA; FRESH-WATER; BACTERIA; IDENTIFICATION; PHYTOPLANKTON; MIGRATION; INSECT; CELLS; RIVER
Keywords
Algicidal bacteria; Stephanodiscus hantzschii blooms; Mesocosm; Pseudomonas fluorescens; Planktonic communities; Ecological response
Type
Article
Language
English
Document Type
Article
Publisher
SPRINGER
Related Researcher
Research Interests

Marine ecology,Plankton,Protists,해양생태,부유생물,원생생물

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