Advanced

Carbon allocation in mycelia of arbuscular mycorrhizal fungi during colonisation of plant seedlings

Nakano, Aiko LU and Olsson, Pål Axel LU (2007) In Soil Biology & Biochemistry 39(7). p.1450-1458
Abstract
The direction of carbon (C) allocation in mycorrhizal mycelia is of fundamental importance to coexistence of individual plants. We therefore investigated the transfer of C from established plants to plant seedlings through fungal mycelia. C allocation by the arbuscular mycorrhizal (AM) fungus Glomus intraradices, from 'donor' plants to mycelia in soil and two different species of introduced 'receiver' seedlings, was investigated in a pot experiment using C-13 labelling and fatty acid analysis. After (CO2)-C-13 application to the shoots of Trifolium subterraneum or Plantago lanceolata, used as donor plants, T subterraneum and P. lanceolata receiver seedlings were introduced. Samples were collected 4-20 days after (CO2)-C-13 application and... (More)
The direction of carbon (C) allocation in mycorrhizal mycelia is of fundamental importance to coexistence of individual plants. We therefore investigated the transfer of C from established plants to plant seedlings through fungal mycelia. C allocation by the arbuscular mycorrhizal (AM) fungus Glomus intraradices, from 'donor' plants to mycelia in soil and two different species of introduced 'receiver' seedlings, was investigated in a pot experiment using C-13 labelling and fatty acid analysis. After (CO2)-C-13 application to the shoots of Trifolium subterraneum or Plantago lanceolata, used as donor plants, T subterraneum and P. lanceolata receiver seedlings were introduced. Samples were collected 4-20 days after (CO2)-C-13 application and analysed regarding C-13 and the fatty acid 16:1 omega 5, the signature of AM fungi. C-13 transfer from T subterraneum donor plants was demonstrated by C-13 enrichment of the roots of the receiver seedlings, but not from the P. lanceolata donor plants. C-13 allocation to the neutral lipid fatty acid 16:1 omega 5 was only 1 ng in each receiver seedling, but 2 mu g of the fatty acid in whole soil. The results indicate that C allocation through mycelial networks is influenced by the donor plant species, but is not directed towards receiver seedlings to any higher degree than towards other directions. The importanice of the extraradical AM fungal mycelium as a C sink was demonstrated. (c) 2007 Elsevier Ltd. All rights reserved. (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
C allocation, arbuscular mycorrhizal (AM) fungi, C-13, fatty acid, lipid, mycelial network
in
Soil Biology & Biochemistry
volume
39
issue
7
pages
1450 - 1458
publisher
Elsevier
external identifiers
  • wos:000246633700006
  • scopus:34247198423
ISSN
0038-0717
DOI
10.1016/j.soilbio.2006.12.031
language
English
LU publication?
yes
id
8e5eb57d-0333-49b2-bd6b-8e296697ff10 (old id 658036)
date added to LUP
2007-12-18 12:31:05
date last changed
2017-11-19 04:13:50
@article{8e5eb57d-0333-49b2-bd6b-8e296697ff10,
  abstract     = {The direction of carbon (C) allocation in mycorrhizal mycelia is of fundamental importance to coexistence of individual plants. We therefore investigated the transfer of C from established plants to plant seedlings through fungal mycelia. C allocation by the arbuscular mycorrhizal (AM) fungus Glomus intraradices, from 'donor' plants to mycelia in soil and two different species of introduced 'receiver' seedlings, was investigated in a pot experiment using C-13 labelling and fatty acid analysis. After (CO2)-C-13 application to the shoots of Trifolium subterraneum or Plantago lanceolata, used as donor plants, T subterraneum and P. lanceolata receiver seedlings were introduced. Samples were collected 4-20 days after (CO2)-C-13 application and analysed regarding C-13 and the fatty acid 16:1 omega 5, the signature of AM fungi. C-13 transfer from T subterraneum donor plants was demonstrated by C-13 enrichment of the roots of the receiver seedlings, but not from the P. lanceolata donor plants. C-13 allocation to the neutral lipid fatty acid 16:1 omega 5 was only 1 ng in each receiver seedling, but 2 mu g of the fatty acid in whole soil. The results indicate that C allocation through mycelial networks is influenced by the donor plant species, but is not directed towards receiver seedlings to any higher degree than towards other directions. The importanice of the extraradical AM fungal mycelium as a C sink was demonstrated. (c) 2007 Elsevier Ltd. All rights reserved.},
  author       = {Nakano, Aiko and Olsson, Pål Axel},
  issn         = {0038-0717},
  keyword      = {C allocation,arbuscular mycorrhizal (AM) fungi,C-13,fatty acid,lipid,mycelial network},
  language     = {eng},
  number       = {7},
  pages        = {1450--1458},
  publisher    = {Elsevier},
  series       = {Soil Biology & Biochemistry},
  title        = {Carbon allocation in mycelia of arbuscular mycorrhizal fungi during colonisation of plant seedlings},
  url          = {http://dx.doi.org/10.1016/j.soilbio.2006.12.031},
  volume       = {39},
  year         = {2007},
}