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- Title
Measuring external mycelia production of ectomycorrhizal fungi in the field: the soil matrix matters.
- Authors
Hendricks, Joseph J.; Mitchell, Robert J.; Kuehn, Kevin A.; Pecot, Stephen D.; Sims, Stephanie E.
- Abstract
• Assessing mycorrhizal fungi production in field settings has been hindered by the inability to measure external mycelia. Recently, external mycelia production was measured in the field using a novel in-growth core technique with acid-washed sand as the in-growth matrix. Here, we tested the assumption that external mycelia production in acid-washed sand is representative of that in native soil. • External mycelia production was estimated as the difference in fungal growth between closed (allowing only saprotrophic fungal production) and open (allowing mycorrhizal and saprotrophic fungal production) cores using a factorial design of soil matrices (acid-washed sand vs native) and fertilization treatments (control vs nitrogen (N)) in a longleaf pine ( Pinus palustris) plantation. • In native soils, the ectomycorrhizal to saprotrophic fungal biomass signal was strong and consistent facilitating the assessment of external mycelia production, which was 300% higher than corresponding rates in acid-washed sand and inversely correlated with soil N. • These results demonstrate the efficacy and importance of using native soil as the in-growth matrix to measure ectomycorrhizal fungi external mycelia production in field settings.
- Subjects
ERGOSTEROL; LONGLEAF pine; MYCORRHIZAL fungi; NITROGEN; PHOSPHOLIPIDS
- Publication
New Phytologist, 2006, Vol 171, Issue 2, p179
- ISSN
0028-646X
- Publication type
Article
- DOI
10.1111/j.1469-8137.2006.01742.x