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High viral infection rates in Antarctic and Arctic bacterioplankton

Säwström, Christin LU ; Granéli, Wilhelm LU ; Laybourn-Parry, Johanna and Anesio, Alexandre Magno LU (2007) In Environmental Microbiology 9(1). p.250-255
Abstract
The frequency of visibly phage-infected bacterial cells (FVIB) and the average number of phages per cell [i.e. burst size (BS)] were determined in Antarctic and Arctic ultra-oligotrophic freshwater environments. Water samples were collected from two Antarctic freshwater lakes and cryoconite holes from a glacier in the Arctic. Data from this bipolar study show the highest FVIB (average 26.1%, range 5.1% to 66.7%) and the lowest BS (average 4, range 2–15) ever reported in the literature. The bacterial density is low in these ultra-oligotrophic freshwater environments but a large proportion of the bacteria are visibly infected. Our results suggest that a constant virioplankton population can be maintained in these extreme environments even... (More)
The frequency of visibly phage-infected bacterial cells (FVIB) and the average number of phages per cell [i.e. burst size (BS)] were determined in Antarctic and Arctic ultra-oligotrophic freshwater environments. Water samples were collected from two Antarctic freshwater lakes and cryoconite holes from a glacier in the Arctic. Data from this bipolar study show the highest FVIB (average 26.1%, range 5.1% to 66.7%) and the lowest BS (average 4, range 2–15) ever reported in the literature. The bacterial density is low in these ultra-oligotrophic freshwater environments but a large proportion of the bacteria are visibly infected. Our results suggest that a constant virioplankton population can be maintained in these extreme environments even though host density is low and often slow growing. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
bacteria, antarctic, virus, arctic, lake
in
Environmental Microbiology
volume
9
issue
1
pages
250 - 255
publisher
Wiley-Blackwell
external identifiers
  • wos:000243294900032
  • scopus:33846105433
ISSN
1462-2920
DOI
10.1111/j.1462-2920.2006.01135.x
language
English
LU publication?
yes
id
87ba393c-1a62-4888-9a10-97cafa87b780 (old id 698112)
date added to LUP
2016-04-01 11:41:57
date last changed
2022-03-28 01:47:50
@article{87ba393c-1a62-4888-9a10-97cafa87b780,
  abstract     = {{The frequency of visibly phage-infected bacterial cells (FVIB) and the average number of phages per cell [i.e. burst size (BS)] were determined in Antarctic and Arctic ultra-oligotrophic freshwater environments. Water samples were collected from two Antarctic freshwater lakes and cryoconite holes from a glacier in the Arctic. Data from this bipolar study show the highest FVIB (average 26.1%, range 5.1% to 66.7%) and the lowest BS (average 4, range 2–15) ever reported in the literature. The bacterial density is low in these ultra-oligotrophic freshwater environments but a large proportion of the bacteria are visibly infected. Our results suggest that a constant virioplankton population can be maintained in these extreme environments even though host density is low and often slow growing.}},
  author       = {{Säwström, Christin and Granéli, Wilhelm and Laybourn-Parry, Johanna and Anesio, Alexandre Magno}},
  issn         = {{1462-2920}},
  keywords     = {{bacteria; antarctic; virus; arctic; lake}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{250--255}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Environmental Microbiology}},
  title        = {{High viral infection rates in Antarctic and Arctic bacterioplankton}},
  url          = {{http://dx.doi.org/10.1111/j.1462-2920.2006.01135.x}},
  doi          = {{10.1111/j.1462-2920.2006.01135.x}},
  volume       = {{9}},
  year         = {{2007}},
}