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Ergosterol content in ericaceous hair roots correlates with dark septate endophytes but not with ericold mycorrhizal colonization

Olsrud, Maria LU ; Michelsen, A and Wallander, Håkan LU (2007) In Soil Biology & Biochemistry 39(5). p.1218-1221
Abstract
The relationship between ergosterol content in ericaceous hair roots and ericoid mycorrhizal (ErM) colonization versus dark septate endophytic (DSE) hyphal colonization was examined in a dwarf shrub-dominated subarctic mire in Northern Sweden. Ergosterol content in hair roots did not correlate with ErM colonization in corresponding root samples. However, a significant positive relationship was found between hair root DSE hyphal colonization and ergosterol content. This is the first study to demonstrate that ergosterol cannot be used as a colonization indicator for ErM in hair roots growing under natural conditions. It also suggests the possibility of using ergosterol as an estimate of DSE hyphal colonization in ericaceous dwarf shrubs.... (More)
The relationship between ergosterol content in ericaceous hair roots and ericoid mycorrhizal (ErM) colonization versus dark septate endophytic (DSE) hyphal colonization was examined in a dwarf shrub-dominated subarctic mire in Northern Sweden. Ergosterol content in hair roots did not correlate with ErM colonization in corresponding root samples. However, a significant positive relationship was found between hair root DSE hyphal colonization and ergosterol content. This is the first study to demonstrate that ergosterol cannot be used as a colonization indicator for ErM in hair roots growing under natural conditions. It also suggests the possibility of using ergosterol as an estimate of DSE hyphal colonization in ericaceous dwarf shrubs. This study has implications for the interpretation of results in field studies where ergosterol was used as a sole proxy for ErM colonization. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Soil Biology & Biochemistry
volume
39
issue
5
pages
1218 - 1221
publisher
Elsevier
external identifiers
  • wos:000245415900027
  • scopus:33847338033
ISSN
0038-0717
DOI
10.1016/j.soilbio.2006.11.018
language
English
LU publication?
yes
id
4d735b96-b681-4d37-ab5d-fba715945f13 (old id 168619)
date added to LUP
2007-06-29 13:54:37
date last changed
2017-10-22 04:40:51
@article{4d735b96-b681-4d37-ab5d-fba715945f13,
  abstract     = {The relationship between ergosterol content in ericaceous hair roots and ericoid mycorrhizal (ErM) colonization versus dark septate endophytic (DSE) hyphal colonization was examined in a dwarf shrub-dominated subarctic mire in Northern Sweden. Ergosterol content in hair roots did not correlate with ErM colonization in corresponding root samples. However, a significant positive relationship was found between hair root DSE hyphal colonization and ergosterol content. This is the first study to demonstrate that ergosterol cannot be used as a colonization indicator for ErM in hair roots growing under natural conditions. It also suggests the possibility of using ergosterol as an estimate of DSE hyphal colonization in ericaceous dwarf shrubs. This study has implications for the interpretation of results in field studies where ergosterol was used as a sole proxy for ErM colonization.},
  author       = {Olsrud, Maria and Michelsen, A and Wallander, Håkan},
  issn         = {0038-0717},
  language     = {eng},
  number       = {5},
  pages        = {1218--1221},
  publisher    = {Elsevier},
  series       = {Soil Biology & Biochemistry},
  title        = {Ergosterol content in ericaceous hair roots correlates with dark septate endophytes but not with ericold mycorrhizal colonization},
  url          = {http://dx.doi.org/10.1016/j.soilbio.2006.11.018},
  volume       = {39},
  year         = {2007},
}