Title: Co-tolerance to zinc and copper of the soil nitrifying community and its relationship with the community structure
Authors: Ruyters, Stefan
Springael, Dirk
Smolders, Erik #
Issue Date: 28-Apr-2011
Conference: FEMS Ecology of soil microorganisms edition:1 location:Prague date:27/04-01/05
Abstract: Previous studies showed that microbial communities develop trace metal tolerance after long term exposure to increased trace metal concentrations in soil. Co-tolerance is the development of tolerance to other trace metals than those to which the microbial community had been exposed to due to, e.g., similar physiological tolerance mechanisms. We determined co-tolerance of nitrifying communities to Zn and Cu in different soils and assessed the nitrifying community structure using AOB amoA DGGE. We selected soils from five locations which were contaminated with either Cu or Zn or with both. Increased Zn and Cu tolerance was observed in response to corresponding soil contamination, however, co-tolerance was only detected in few cases. Similarly contaminating soil with either Zn or Cu selected for identical phylotypes in one soil, however, co-tolerance was not observed in the Zn contaminated treatment. In contrast, similar Zn and Cu contamination in a second soil both resulted in the development of a co-tolerant nitrifying community that was composed of different dominant phylotypes. The Zn tolerant nitrifying community structures from different soils that inherently have a different native community did not converge to a similar community structure.
Description: poster
Publication status: published
KU Leuven publication type: IMa
Appears in Collections:Division Soil and Water Management
# (joint) last author

Files in This Item:
File Description Status SizeFormat
Poster FEMS Prague.pdf Published 988KbAdobe PDFView/Open

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.