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Temperature constraints on the growth and functioning of root organ cultures with arbuscular mycorrhizal fungi

Gavito, Mayra LU ; Olsson, Pål Axel LU ; Rouhier, Hervé LU ; Medina-Penafiel, A; Jakobsen, I; Bago, A and Azcon-Aguilar, C (2005) In New Phytologist 168(1). p.179-188
Abstract
(.) In this study we investigated the effects of temperature on fungal growth and tested whether the differences in fungal growth were related to the effects of temperature on carbon movement to, or within, the fungus. (.) Growth curves and C uptake-transfer-translocation measurements were obtained for three arbuscular mycorrhizal fungi (AMF) isolates cultured within a 6-30 degrees C temperature range. A series of experiments with a model fungal isolate, Glomus intraradices, was used to examine the effects of temperature on lipid body and 33 P movement, and to investigate the role of acclimation and incubation time. (.) Temperature effects on AMF growth were both direct and indirect because, despite clear independent root and AMF growth... (More)
(.) In this study we investigated the effects of temperature on fungal growth and tested whether the differences in fungal growth were related to the effects of temperature on carbon movement to, or within, the fungus. (.) Growth curves and C uptake-transfer-translocation measurements were obtained for three arbuscular mycorrhizal fungi (AMF) isolates cultured within a 6-30 degrees C temperature range. A series of experiments with a model fungal isolate, Glomus intraradices, was used to examine the effects of temperature on lipid body and 33 P movement, and to investigate the role of acclimation and incubation time. (.) Temperature effects on AMF growth were both direct and indirect because, despite clear independent root and AMF growth responses in some cases, the uptake and translocation of 13 C was also affected within the temperature range tested. Root C uptake and, to a lesser extent, C translocation in the fungus, were reduced by low temperatures (< 18 C). Uptake and translocation of 33 P by fungal hyphae were, by contrast, similar between 10 and 25 C. (.) We conclude that temperature, between 6 and 18 C, reduces AMF growth, and that C movement to the fungus is involved in this response. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
New Phytologist
volume
168
issue
1
pages
179 - 188
publisher
Wiley-Blackwell
external identifiers
  • pmid:16159332
  • wos:000231707700018
  • scopus:32944466773
ISSN
1469-8137
DOI
10.1111/j.1469-8137.2005.01481.x
language
English
LU publication?
yes
id
a03878ef-c510-44a6-9ab6-9244d71617c4 (old id 146753)
date added to LUP
2007-06-29 09:39:56
date last changed
2017-08-13 03:32:39
@article{a03878ef-c510-44a6-9ab6-9244d71617c4,
  abstract     = {(.) In this study we investigated the effects of temperature on fungal growth and tested whether the differences in fungal growth were related to the effects of temperature on carbon movement to, or within, the fungus. (.) Growth curves and C uptake-transfer-translocation measurements were obtained for three arbuscular mycorrhizal fungi (AMF) isolates cultured within a 6-30 degrees C temperature range. A series of experiments with a model fungal isolate, Glomus intraradices, was used to examine the effects of temperature on lipid body and 33 P movement, and to investigate the role of acclimation and incubation time. (.) Temperature effects on AMF growth were both direct and indirect because, despite clear independent root and AMF growth responses in some cases, the uptake and translocation of 13 C was also affected within the temperature range tested. Root C uptake and, to a lesser extent, C translocation in the fungus, were reduced by low temperatures (&lt; 18 C). Uptake and translocation of 33 P by fungal hyphae were, by contrast, similar between 10 and 25 C. (.) We conclude that temperature, between 6 and 18 C, reduces AMF growth, and that C movement to the fungus is involved in this response.},
  author       = {Gavito, Mayra and Olsson, Pål Axel and Rouhier, Hervé and Medina-Penafiel, A and Jakobsen, I and Bago, A and Azcon-Aguilar, C},
  issn         = {1469-8137},
  language     = {eng},
  number       = {1},
  pages        = {179--188},
  publisher    = {Wiley-Blackwell},
  series       = {New Phytologist},
  title        = {Temperature constraints on the growth and functioning of root organ cultures with arbuscular mycorrhizal fungi},
  url          = {http://dx.doi.org/10.1111/j.1469-8137.2005.01481.x},
  volume       = {168},
  year         = {2005},
}