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Disentangling seasonal bacterioplankton population dynamics by high-frequency sampling

Lindh, Markus V LU ; Sjöstedt, Johanna LU ; Andersson, Anders F; Baltar, Federico; Hugerth, Luisa W; Lundin, Daniel; Muthusamy, Saraladevi LU ; Legrand, Catherine and Pinhassi, Jarone (2014) In Environmental Microbiology 17(7). p.76-2459
Abstract

Multiyear comparisons of bacterioplankton succession reveal that environmental conditions drive community shifts with repeatable patterns between years. However, corresponding insight into bacterioplankton dynamics at a temporal resolution relevant for detailed examination of variation and characteristics of specific populations within years is essentially lacking. During 1 year, we collected 46 samples in the Baltic Sea for assessing bacterial community composition by 16S rRNA gene pyrosequencing (nearly twice weekly during productive season). Beta-diversity analysis showed distinct clustering of samples, attributable to seemingly synchronous temporal transitions among populations (populations defined by 97% 16S rRNA gene sequence... (More)

Multiyear comparisons of bacterioplankton succession reveal that environmental conditions drive community shifts with repeatable patterns between years. However, corresponding insight into bacterioplankton dynamics at a temporal resolution relevant for detailed examination of variation and characteristics of specific populations within years is essentially lacking. During 1 year, we collected 46 samples in the Baltic Sea for assessing bacterial community composition by 16S rRNA gene pyrosequencing (nearly twice weekly during productive season). Beta-diversity analysis showed distinct clustering of samples, attributable to seemingly synchronous temporal transitions among populations (populations defined by 97% 16S rRNA gene sequence identity). A wide spectrum of bacterioplankton dynamics was evident, where divergent temporal patterns resulted both from pronounced differences in relative abundance and presence/absence of populations. Rates of change in relative abundance calculated for individual populations ranged from 0.23 to 1.79 day(-1) . Populations that were persistently dominant, transiently abundant or generally rare were found in several major bacterial groups, implying evolution has favoured a similar variety of life strategies within these groups. These findings suggest that high temporal resolution sampling allows constraining the timescales and frequencies at which distinct populations transition between being abundant or rare, thus potentially providing clues about physical, chemical or biological forcing on bacterioplankton community structure.

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author
publishing date
type
Contribution to journal
publication status
published
keywords
Aquatic Organisms/genetics, Bacteria/genetics, Baltic States, Biodiversity, Genetic Variation/genetics, Plankton/genetics, Population Dynamics, RNA, Ribosomal, 16S/genetics, Seasons
in
Environmental Microbiology
volume
17
issue
7
pages
76 - 2459
publisher
Wiley-Blackwell
external identifiers
  • scopus:84937073236
ISSN
1462-2920
DOI
10.1111/1462-2920.12720
language
English
LU publication?
no
id
87038122-c6fb-40a7-b21f-d6d81415e8fc
date added to LUP
2019-05-15 14:44:31
date last changed
2019-10-23 06:14:32
@article{87038122-c6fb-40a7-b21f-d6d81415e8fc,
  abstract     = {<p>Multiyear comparisons of bacterioplankton succession reveal that environmental conditions drive community shifts with repeatable patterns between years. However, corresponding insight into bacterioplankton dynamics at a temporal resolution relevant for detailed examination of variation and characteristics of specific populations within years is essentially lacking. During 1 year, we collected 46 samples in the Baltic Sea for assessing bacterial community composition by 16S rRNA gene pyrosequencing (nearly twice weekly during productive season). Beta-diversity analysis showed distinct clustering of samples, attributable to seemingly synchronous temporal transitions among populations (populations defined by 97% 16S rRNA gene sequence identity). A wide spectrum of bacterioplankton dynamics was evident, where divergent temporal patterns resulted both from pronounced differences in relative abundance and presence/absence of populations. Rates of change in relative abundance calculated for individual populations ranged from 0.23 to 1.79 day(-1) . Populations that were persistently dominant, transiently abundant or generally rare were found in several major bacterial groups, implying evolution has favoured a similar variety of life strategies within these groups. These findings suggest that high temporal resolution sampling allows constraining the timescales and frequencies at which distinct populations transition between being abundant or rare, thus potentially providing clues about physical, chemical or biological forcing on bacterioplankton community structure. </p>},
  author       = {Lindh, Markus V and Sjöstedt, Johanna and Andersson, Anders F and Baltar, Federico and Hugerth, Luisa W and Lundin, Daniel and Muthusamy, Saraladevi and Legrand, Catherine and Pinhassi, Jarone},
  issn         = {1462-2920},
  keyword      = {Aquatic Organisms/genetics,Bacteria/genetics,Baltic States,Biodiversity,Genetic Variation/genetics,Plankton/genetics,Population Dynamics,RNA, Ribosomal, 16S/genetics,Seasons},
  language     = {eng},
  month        = {11},
  number       = {7},
  pages        = {76--2459},
  publisher    = {Wiley-Blackwell},
  series       = {Environmental Microbiology},
  title        = {Disentangling seasonal bacterioplankton population dynamics by high-frequency sampling},
  url          = {http://dx.doi.org/10.1111/1462-2920.12720},
  volume       = {17},
  year         = {2014},
}