Effects of temperature and nutrients on changes in genetic diversity of bacterioplankton communities as revealed by 454 pyrosequencing in a semi-closed bay, South Korea

DC Field Value Language
dc.contributor.author 김현정 -
dc.contributor.author 정승원 -
dc.contributor.author 서승석 -
dc.contributor.author 이택견 -
dc.date.accessioned 2020-07-15T23:52:36Z -
dc.date.available 2020-07-15T23:52:36Z -
dc.date.created 2020-02-11 -
dc.date.issued 2015-10-20 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/25245 -
dc.description.abstract Bacterioplankton play critical roles in controlling nutrients and dissolved inorganic nitrogen, as well as facilitating interactions among other biota in marine ecosystems, and can also serve as indicators of the health of the marine environment. Bacterioplankton communities in the surface seawater of a semi-closed bay (Jangmok Bay, South Korea) were analysed using a 16S rDNA multiplex 454 pyrosequencing approach. The following conclusions were drawn: 1) Diversity and operational taxonomic units (OTUs) are highest in cold water seasons and lowest in warm water ones. 2) During cold water seasons, alpha-proteobacteria respond rapidly to pulses of the concentration of inorganic nutrients. 3) During warm water seasons, gamma-proteobacteria are the most active type of bacterioplankton present in the prevailing conditions, which include high dissolved organic carbon,rainfall, chemical oxygen demand and primary production, but low nutrient concentration. 4) Cyanobacteria, a minor group constituting 4.58% of the total bacterioplankton, are more abundant at low temperatures. 5) The Cytophagia-Flavobacteria group is more abundant in nutrient-rich conditions, including high concentrations of dissolved organic carbon and inorganic nutrients the abundance of this group also demonstrated a delayed decline following summer phytoplankton blooms. The pronounced seasonal oscillations in phosphorus concentration and temperature exert nment. Bacterioplankton communities in the surface seawater of a semi-closed bay (Jangmok Bay, South Korea) were analysed using a 16S rDNA multiplex 454 pyrosequencing approach. The following conclusions were drawn: 1) Diversity and operational taxonomic units (OTUs) are highest in cold water seasons and lowest in warm water ones. 2) During cold water seasons, alpha-proteobacteria respond rapidly to pulses of the concentration of inorganic nutrients. 3) During warm water seasons, gamma-proteobacteria are the most active type of bacterioplankton present in the prevailing conditions, which include high dissolved organic carbon,rainfall, chemical oxygen demand and primary production, but low nutrient concentration. 4) Cyanobacteria, a minor group constituting 4.58% of the total bacterioplankton, are more abundant at low temperatures. 5) The Cytophagia-Flavobacteria group is more abundant in nutrient-rich conditions, including high concentrations of dissolved organic carbon and inorganic nutrients the abundance of this group also demonstrated a delayed decline following summer phytoplankton blooms. The pronounced seasonal oscillations in phosphorus concentration and temperature exert -
dc.description.uri 1 -
dc.language English -
dc.publisher PICES-2015 -
dc.relation.isPartOf PICES-2015 -
dc.title Effects of temperature and nutrients on changes in genetic diversity of bacterioplankton communities as revealed by 454 pyrosequencing in a semi-closed bay, South Korea -
dc.type Conference -
dc.citation.conferencePlace CC -
dc.citation.endPage 238 -
dc.citation.startPage 238 -
dc.citation.title PICES-2015 -
dc.contributor.alternativeName 김현정 -
dc.contributor.alternativeName 정승원 -
dc.contributor.alternativeName 서승석 -
dc.contributor.alternativeName 이택견 -
dc.identifier.bibliographicCitation PICES-2015, pp.238 -
dc.description.journalClass 1 -
Appears in Collections:
South Sea Research Institute > Library of Marine Samples > 2. Conference Papers
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