The effect of phylogenetically different bacteria on the fitness of Pseudomonas fluorescens in sand microcosms

PloS One
Olaf TycPaolina Garbeva

Abstract

In most environments many microorganisms live in close vicinity and can interact in various ways. Recent studies suggest that bacteria are able to sense and respond to the presence of neighbouring bacteria in the environment and alter their response accordingly. This ability might be an important strategy in complex habitats such as soils, with great implications for shaping the microbial community structure. Here, we used a sand microcosm approach to investigate how Pseudomonas fluorescens Pf0-1 responds to the presence of monocultures or mixtures of two phylogenetically different bacteria, a Gram-negative (Pedobacter sp. V48) and a Gram-positive (Bacillus sp. V102) under two nutrient conditions. Results revealed that under both nutrient poor and nutrient rich conditions confrontation with the Gram-positive Bacillus sp. V102 strain led to significant lower cell numbers of Pseudomonas fluorescens Pf0-1, whereas confrontation with the Gram-negative Pedobacter sp. V48 strain did not affect the growth of Pseudomonas fluorescens Pf0-1. However, when Pseudomonas fluorescens Pf0-1 was confronted with the mixture of both strains, no significant effect on the growth of Pseudomonas fluorescens Pf0-1 was observed. Quantitative real-time ...Continue Reading

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Nov 13, 2014·Frontiers in Microbiology·Olaf TycPaolina Garbeva

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Citations

Mar 24, 2016·Trends in Microbiology·Henriette L RøderMette Burmølle
Jan 10, 2018·Frontiers in Microbiology·Kristin Schulz-BohmPaolina Garbeva
May 31, 2017·Microbial Biotechnology·Olaf TycPaolina Garbeva
Dec 11, 2019·Insects·Matteo CalcagnilePietro Alifano
May 14, 2021·FEMS Microbiology Ecology·Daniela MinerdiRenato Fani

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