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Use of the Signature Fatty Acid 16 : 1ω5 as a Tool to Determine the Distribution of Arbuscular Mycorrhizal Fungi in Soil
Joint Authors
Ruess, Liliane
Gabriel, Elke
Ngosong, Christopher
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-04
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Biomass estimation of arbuscular mycorrhiza (AM) fungi, widespread plant root symbionts, commonly employs lipid biomarkers, predominantly the fatty acid 16:1ω5.
We briefly reviewed the application of this signature fatty acid, followed by a case study comparing biochemical markers with microscopic techniques in an arable soil following a change to AM non-host plants after 27 years of continuous host crops, that is, two successive cropping seasons with wheat followed by amaranth.
After switching to the non-host amaranth, spore biomass estimated by the neutral lipid fatty acid (NLFA) 16:1ω5 decreased to almost nil, whereas microscopic spore counts decreased by about 50% only.
In contrast, AM hyphal biomass assessed by the phospholipid (PLFA) 16:1ω5 was greater under amaranth than wheat.
The application of PLFA 16:1ω5 as biomarker was hampered by background level derived from bacteria, and further enhanced by its incorporation from degrading spores used as microbial resource.
Meanwhile, biochemical and morphological assessments showed negative correlation for spores and none for hyphal biomass.
In conclusion, the NLFA 16:1ω5 appears to be a feasible indicator for AM fungi of the Glomales group in the complex field soils, whereas the use of PLFA 16:1ω5 for hyphae is unsuitable and should be restricted to controlled laboratory studies.
American Psychological Association (APA)
Ngosong, Christopher& Gabriel, Elke& Ruess, Liliane. 2012. Use of the Signature Fatty Acid 16 : 1ω5 as a Tool to Determine the Distribution of Arbuscular Mycorrhizal Fungi in Soil. Journal of Lipids،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-456190
Modern Language Association (MLA)
Ngosong, Christopher…[et al.]. Use of the Signature Fatty Acid 16 : 1ω5 as a Tool to Determine the Distribution of Arbuscular Mycorrhizal Fungi in Soil. Journal of Lipids No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-456190
American Medical Association (AMA)
Ngosong, Christopher& Gabriel, Elke& Ruess, Liliane. Use of the Signature Fatty Acid 16 : 1ω5 as a Tool to Determine the Distribution of Arbuscular Mycorrhizal Fungi in Soil. Journal of Lipids. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-456190
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-456190