Tracking carbon from the atmosphere to the rhizosphere
(2005) In Ecology Letters 8(12). p.1264-1270- Abstract
- Turnover rates of arbuscular mycorrhizal (AM) fungi may influence storage of soil organic carbon (SOC). We examined the longevity of AM hyphae in monoxenic cultures; and we also used C-13 incorporation into signature fatty acids to study C dynamics in a mycorrhizal symbiosis involving Glomus intraradices and Plantago lanceolata. C-13 enrichment of signature fatty acids showed rapid transfer of plant assimilates to AM fungi and a gradual release of C from roots to rhizosphere bacteria, but at a much slower rate. Furthermore, most C assimilated by AM fungi remained 32 days after labelling. These findings indicate that C-13 labelled fatty acids can be used to track C flux from the atmosphere to the rhizosphere and that retention of C in AM... (More)
- Turnover rates of arbuscular mycorrhizal (AM) fungi may influence storage of soil organic carbon (SOC). We examined the longevity of AM hyphae in monoxenic cultures; and we also used C-13 incorporation into signature fatty acids to study C dynamics in a mycorrhizal symbiosis involving Glomus intraradices and Plantago lanceolata. C-13 enrichment of signature fatty acids showed rapid transfer of plant assimilates to AM fungi and a gradual release of C from roots to rhizosphere bacteria, but at a much slower rate. Furthermore, most C assimilated by AM fungi remained 32 days after labelling. These findings indicate that C-13 labelled fatty acids can be used to track C flux from the atmosphere to the rhizosphere and that retention of C in AM fungal mycelium may contribute significantly to SOC. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/213228
- author
- Olsson, Pål Axel LU and Johnson, Nancy LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Plantago lanceolata, intraradices, Glomus, carbon cycling, C-13, arbuscular mycorrhiza, bacteria, signature fatty acids, stable isotope
- in
- Ecology Letters
- volume
- 8
- issue
- 12
- pages
- 1264 - 1270
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000233313500003
- scopus:28644446225
- ISSN
- 1461-023X
- DOI
- 10.1111/j.1461-0248.2005.00831.x
- language
- English
- LU publication?
- yes
- id
- f7829756-6b62-423d-b33e-53551dbd1599 (old id 213228)
- date added to LUP
- 2016-04-01 12:18:15
- date last changed
- 2024-04-09 08:35:16
@article{f7829756-6b62-423d-b33e-53551dbd1599, abstract = {{Turnover rates of arbuscular mycorrhizal (AM) fungi may influence storage of soil organic carbon (SOC). We examined the longevity of AM hyphae in monoxenic cultures; and we also used C-13 incorporation into signature fatty acids to study C dynamics in a mycorrhizal symbiosis involving Glomus intraradices and Plantago lanceolata. C-13 enrichment of signature fatty acids showed rapid transfer of plant assimilates to AM fungi and a gradual release of C from roots to rhizosphere bacteria, but at a much slower rate. Furthermore, most C assimilated by AM fungi remained 32 days after labelling. These findings indicate that C-13 labelled fatty acids can be used to track C flux from the atmosphere to the rhizosphere and that retention of C in AM fungal mycelium may contribute significantly to SOC.}}, author = {{Olsson, Pål Axel and Johnson, Nancy}}, issn = {{1461-023X}}, keywords = {{Plantago lanceolata; intraradices; Glomus; carbon cycling; C-13; arbuscular mycorrhiza; bacteria; signature fatty acids; stable isotope}}, language = {{eng}}, number = {{12}}, pages = {{1264--1270}}, publisher = {{Wiley-Blackwell}}, series = {{Ecology Letters}}, title = {{Tracking carbon from the atmosphere to the rhizosphere}}, url = {{http://dx.doi.org/10.1111/j.1461-0248.2005.00831.x}}, doi = {{10.1111/j.1461-0248.2005.00831.x}}, volume = {{8}}, year = {{2005}}, }