Algicidal activity of the bacterium, Pseudomonas fluorescens SK09, to mitigate Stephanodiscus hantzschii (Bacillariophyceae) blooms using field mesocosms SCIE SCOPUS

Cited 3 time in WEB OF SCIENCE Cited 3 time in Scopus
Title
Algicidal activity of the bacterium, Pseudomonas fluorescens SK09, to mitigate Stephanodiscus hantzschii (Bacillariophyceae) blooms using field mesocosms
Author(s)
Noh, Seong Yu; Jung, Seung Won; Kim, Baek Ho; Katano, Toshiya; Han, Myung-Soo
KIOST Author(s)
Jung, Seung Won(정승원)
Publication Year
2017
Abstract
The main goal of this study was to characterize mortality and trophic interactions of Stephanodiscus hantzschii (small centric diatoms) in the presence of an algicidal bacterium, Pseudomonas fluorescens HYK0210-SK09 (SK09) in outdoor mesocosm experiments with an extremely low temperature and also in direct application in a river. SK09 at an inoculation density of 5 x 10(6) cells/mL (Experiment 1) and SK09 cells immobilized in activated carbon polyvinyl alcohol sponge carriers (Experiment 2) did not appear to attack S. hantzschii in a species-specific manner at temperatures close to freezing. Furthermore, SK09 did not control the diatom blooms when SK09 cells immobilized in the carriers were directly applied in the river. The dynamics of both the heterotrophic flagellate and ciliate abundances showed similar trends to the activity of algicidal bacteria; moreover the heterotrophic protists could not control the total bacterial density. Inorganic nutrient concentrations and conductivity remained unchanged compared with those in the control group. The results obtained in this study and previous results are important for assessing biological control using algicidal bacteria in the wild.
ISSN
0270-5060
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1352
DOI
10.1080/02705060.2017.1323682
Bibliographic Citation
JOURNAL OF FRESHWATER ECOLOGY, v.32, no.1, pp.477 - 488, 2017
Publisher
TAYLOR & FRANCIS INC
Subject
HYK0210-SK09; TEMPERATURE; MECHANISM; REMOVAL; DIATOMS; IMPACT
Keywords
Harmful algal blooms; mesocosm; Pseudomonas fluorescens HYK0210-SK09; Stephanodiscus hantzschii; stream temperature; biocontrol
Type
Article
Language
English
Document Type
Article
Publisher
TAYLOR & FRANCIS INC
Related Researcher
Research Interests

Phytoplatnkon taxonomy,Phytoplatnkon physiology,Phycosphere,식물플랑크톤 분류,식물플랑크톤 생리,식물플랑크톤, 바이러스, 박테리아 관계

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse