期刊
MARINE POLLUTION BULLETIN
卷 106, 期 1-2, 页码 139-148出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.03.015
关键词
16 s rDNA; Bacterioplankton diversity; 454 pyrosequencing; Semi-closed bay; Environmental change
资金
- Public Welfare & Safety Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning of Korea (Development of autonomous microalgal identification syste [PN66430]
- Research Program of Korea Institute of Marine Science & Technology (Construction of test, evaluation and certification systems for USCG Phase II standard) [PM58580]
- Korea Ministry of Environment(MOE) as Eco-Innovation Program [416-111-008]
- Korea Environmental Industry & Technology Institute (KEITI) [416-111-008] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Bacterioplankton communities in a semi-closed bay (Jangmok Bay, South Korea) were analysed using a 16S rDNA multiplex 454 pyrosequencing approach. Diversity and operational taxonomic units of bacterioplankton communities in the Jangmok Bay are highest in cold water seasons and lowest in warm water ones. During cold seasons, alpha-proteobacteria respond rapidly to pulses of the concentration of inorganic nutrients, while gamma-proteobacteria during warm water seasons are the most active type of bacterioplankton resent in the prevailing conditions, which include high dissolved organic carbon, chemical oxygen demand and primary production. Cyanobacteria, a minor group constituting 4.58% of the total bacterioplankton, are more abundant at low temperature. Flavobacteria are more abundant in nutrient-rich conditions and the abundance of this group also demonstrated a delayed decline following summer phytoplankton blooms. The pronounced seasonal oscillations in phosphorus concentration and temperature exert strong selection pressure on bacterioplankton communities. (C) 2016 Elsevier Ltd. All rights reserved.
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