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The interplay between bacterial community composition and the environment determining function of inland water bacteria

Lindstrom, Eva S.; Feng, Xin Mei; Granéli, Wilhelm LU and Kritzberg, Emma LU (2010) In Limnology and Oceanography 55(5). p.2052-2060
Abstract
We hypothesized that habitats differing in water flow regime would differ in bacterial function either because of differences in the local environment, in bacterial community composition (BCC), or in the mechanism shaping BCC (community assembly). In 20 lakes and 17 inlet streams BCC was analyzed by terminal restriction fragment length polymorphism of the gene coding for 16S ribosomal RNA, and bacterial function was estimated as bacterial production rate (BP, measured as leucine incorporation) per content of dissolved organic carbon (DOC) (BP : DOC). BCC in both lakes and streams appeared to be shaped by local environmental forces (i.e., species sorting according to metacommunity theory), but not by massive introduction of cells from the... (More)
We hypothesized that habitats differing in water flow regime would differ in bacterial function either because of differences in the local environment, in bacterial community composition (BCC), or in the mechanism shaping BCC (community assembly). In 20 lakes and 17 inlet streams BCC was analyzed by terminal restriction fragment length polymorphism of the gene coding for 16S ribosomal RNA, and bacterial function was estimated as bacterial production rate (BP, measured as leucine incorporation) per content of dissolved organic carbon (DOC) (BP : DOC). BCC in both lakes and streams appeared to be shaped by local environmental forces (i.e., species sorting according to metacommunity theory), but not by massive introduction of cells from the drainage area (mass effect). BP : DOC was lower in streams than in lakes, which appeared to be both because of differences in BCC and environment between lakes and streams, independent of each other. We found no support for an effect of water flow regime in itself (i.e., cell dispersal rate) causing the lower functionality of the streams. In streams, BP : DOC was correlated to both BCC and environment, independent of each other, while in lakes function could not be explained by either BCC or environment. The greater environmental variability among our streams than among our lakes may be the cause for the stronger BCC-function coupling in our streams, since smaller environmental variation among our lakes would allow a greater functional redundancy. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Limnology and Oceanography
volume
55
issue
5
pages
2052 - 2060
publisher
ASLO
external identifiers
  • wos:000283667100022
ISSN
1939-5590
DOI
10.4319/lo.2010.55.5.2052
project
BECC
language
English
LU publication?
yes
id
c032fa25-c0a3-43d0-8de3-d6f55f407c1d (old id 1753105)
date added to LUP
2010-12-29 15:19:11
date last changed
2018-05-29 10:58:43
@article{c032fa25-c0a3-43d0-8de3-d6f55f407c1d,
  abstract     = {We hypothesized that habitats differing in water flow regime would differ in bacterial function either because of differences in the local environment, in bacterial community composition (BCC), or in the mechanism shaping BCC (community assembly). In 20 lakes and 17 inlet streams BCC was analyzed by terminal restriction fragment length polymorphism of the gene coding for 16S ribosomal RNA, and bacterial function was estimated as bacterial production rate (BP, measured as leucine incorporation) per content of dissolved organic carbon (DOC) (BP : DOC). BCC in both lakes and streams appeared to be shaped by local environmental forces (i.e., species sorting according to metacommunity theory), but not by massive introduction of cells from the drainage area (mass effect). BP : DOC was lower in streams than in lakes, which appeared to be both because of differences in BCC and environment between lakes and streams, independent of each other. We found no support for an effect of water flow regime in itself (i.e., cell dispersal rate) causing the lower functionality of the streams. In streams, BP : DOC was correlated to both BCC and environment, independent of each other, while in lakes function could not be explained by either BCC or environment. The greater environmental variability among our streams than among our lakes may be the cause for the stronger BCC-function coupling in our streams, since smaller environmental variation among our lakes would allow a greater functional redundancy.},
  author       = {Lindstrom, Eva S. and Feng, Xin Mei and Granéli, Wilhelm and Kritzberg, Emma},
  issn         = {1939-5590},
  language     = {eng},
  number       = {5},
  pages        = {2052--2060},
  publisher    = {ASLO},
  series       = {Limnology and Oceanography},
  title        = {The interplay between bacterial community composition and the environment determining function of inland water bacteria},
  url          = {http://dx.doi.org/10.4319/lo.2010.55.5.2052},
  volume       = {55},
  year         = {2010},
}