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Microbial diversity determines the invasion of soil by a bacterial pathogen

Open access
van Elsas, Jan Dirk, Chiurazzi, Mario, Mallon, Cyrus A., Elhottovā, Dana, Krištůfek, Václav, Salles, Joana Falcão·2012·Proceedings of the National Academy of Sciences

Abstract

Natural ecosystems show variable resistance to invasion by alien species, and this resistance can relate to the species diversity in the system. In soil, microorganisms are key components that determine life support functions, but the functional redundancy in the microbiota of most soils has long been thought to overwhelm microbial diversity–function relationships. We here show an inverse relationship between soil microbial diversity and survival of the invading species Escherichia coli O157:H7, assessed by using the marked derivative strain T. The invader's fate in soil was determined in the presence of ( i ) differentially constructed culturable bacterial communities, and ( ii ) microbial communities established using a dilution-to-extinction approach. Both approaches revealed a negative correlation between the diversity of the soil microbiota and survival of the invader. The relationship could be explained by a decrease in the competitive ability of the invader in species-rich vs. species-poor bacterial communities, reflected in the amount of resources used and the rate of their consumption. Soil microbial diversity is a key factor that controls the extent to which bacterial invaders can establish.

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Metadata

Authors
van Elsas, J. D., Chiurazzi, M., Mallon, C. A., Elhottovā, D., Krištůfek, V., & Salles, J. F.
Venue
Proceedings of the National Academy of Sciences
Published
2012-01-09
Volume
109
Issue
4
Pages
1159-1164
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2166855726
Cited by
1,051
References
40
FWCI
30.33
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Microbial diversity determines the invasion of soil by a bacterial pathogen. https://app.cochat.ai/papers/10.1073/pnas.1109326109
The paper
van Elsas, J. D., Chiurazzi, M., Mallon, C. A., Elhottovā, D., Krištůfek, V., & Salles, J. F. (2012). Microbial diversity determines the invasion of soil by a bacterial pathogen. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1109326109

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