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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)
Please use this url to cite or link to this publication:
author
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
2007-12-07 12:30:59
date last changed
2017-04-16 03:26:40
@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},
  keyword      = {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},
  volume       = {9},
  year         = {2007},
}