Plant productivity, ectomycorrhizae, and metal contamination in urban brownfield soils

Jessica M. Evans, Adam Parker, Frank Gallagher, Jennifer Krumins

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)

Abstract

The soil contamination legacy of postindustrial sites has become an issue of increasing ecological and public health concern. This study examines the ectomycorrhizal and above-ground plant relationships in the metaliferous soil of an urban brownfield. Ectomycorrhizal fungi (EMF) were microscopically identified by physical morphotyping followed by sequencing of ribosomal DNA. Plant productivity was assessed through Leaf Area Index (LAI) measurements taken fromMay through July 2012 and 2013. Results indicate that therewere significant changes in EMF community composition and plant productivity based on their position along a total soil metal load gradient. Cenococcum geophilum was the dominant species in the soilswhere total soilmetal load was belowpreviously established threshold values, and Russula species were the dominant genera in soilswhere the total soil metal load was above the threshold value. Higher LAI values are seen in environments with higher soil metal levels. However, higher LAI could be due to multiple factors such as increased moisture and the dominance of metal-tolerant tree species. This study suggests that soil metal contamination affects plant productivity and EMFcommunity composition and supports the idea that EMF species have varying levels of tolerance for metals.

Original languageEnglish
Pages (from-to)198-206
Number of pages9
JournalSoil Science
Volume180
Issue number4-5
DOIs
StatePublished - 1 Jan 2015

Fingerprint

brownfields
ectomycorrhiza
ectomycorrhizae
metals
productivity
leaf area index
metal
soil
fungi
fungus
Cenococcum geophilum
soil-plant interactions
Russula
metal tolerance
soil pollution
ribosomal DNA
public health
community composition
contamination
tolerance

Keywords

  • Heavy metals
  • Mycorrhizae
  • Plant productivity
  • Restoration

Cite this

Evans, Jessica M. ; Parker, Adam ; Gallagher, Frank ; Krumins, Jennifer. / Plant productivity, ectomycorrhizae, and metal contamination in urban brownfield soils. In: Soil Science. 2015 ; Vol. 180, No. 4-5. pp. 198-206.
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Plant productivity, ectomycorrhizae, and metal contamination in urban brownfield soils. / Evans, Jessica M.; Parker, Adam; Gallagher, Frank; Krumins, Jennifer.

In: Soil Science, Vol. 180, No. 4-5, 01.01.2015, p. 198-206.

Research output: Contribution to journalArticleResearchpeer-review

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