Concept

Phyllosphère

Publications associées (31)

Linking microbial population dynamics and nutrient removal during wastewater treatment

Christof Holliger, David Gregory Weissbrodt

A methodology combining molecular fingerprinting, pyrosequencing-based identification of phylotypes with PyroTRF-ID, and multivariate statistics was developed to investigate on the long run, with high resolution and low cost, the dynamics of bacterial popu ...

2013

Bacterial Resource Management for Nutrient Removal in Aerobic Granular Sludge Wastewater Treatment Systems

David Gregory Weissbrodt

The approach of wastewater treatment has shifted towards a holistic view in order to achieve sustainability in addition to environmental protection. The aerobic granular sludge (AGS) technology, which relies on the use of fast-settling granular biofilms ca ...

EPFL2013

Bacterial selection for nutrient removal in aerobic granular sludge wastewater treatment systems

Christof Holliger, David Gregory Weissbrodt

The mechanism of bacterial selection was investigated in aerobic granular sludge wastewater treatment systems (i) to determine why biological nutrient removal (BNR) gets deteriorated during granulation start-up under wash-out dynamics, and (ii) to identify ...

2013

Bacterial communities associated with chloroethene–contaminated aquifers present both geographical isolation and strong correlations to local environmental variables

Christof Holliger, Pierre Rossi, Noam Shani

Numerous industries and facilities have been using chlorinated ethenes (CEs) as non-flammable solvents during manufacturing. Massive usage, careless handling and storage, spills and leakages made them one of the most frequent aquifer contaminants. CEs are ...

2010

Performance and microbial community composition dynamics of aerobic granular sludge from sequencing batch bubble column reactors operated at 20, 30, and 35°

Christof Holliger, Julien Maillard, Pierre Rossi, Emmanuelle Rohrbach, Sirous Ebrahimi, Sébastien Gabus, Maryam Hosseini

Two bubble column sequencing batch reactors fed with an artificial wastewater were operated at 20, 30 and 35°C. In a first stage, stable granules were obtained at 20°C whereas fluffy structures were observed at 30°C. Molecular analysis revealed high abunda ...

Springer-Verlag2010

Species-specific effects of polyploidisation and plant traits of Centaurea maculosa and Senecio inaequidens on rhizosphere microorganisms

Alexandre Buttler, Edward Mitchell, Aurélie Thébault

Invasive plant species represent a threat to terrestrial ecosystems, but their effects on the soil biota and the mechanisms involved are not yet well understood. Many invasive species have undergone polyploidisation, leading to the coexistence of various c ...

Springer Verlag2010

Influence of environmental factors on the structures of bacterial communities in a chloroethene – contaminated aquifer

Christof Holliger, Pierre Rossi, Noam Shani

Numerous industries have been using chloroethenes (CEs), mainly tetrachloroethene and trichloroethene, as non-flammable solvents since the beginning of the 20th century. Massive usage, along with careless handling and storage, made CEs one of the most abun ...

2009

Soil microbial community changes in wooded mountain pastures due to simulated effects of cattle grazing

Alexandre Buttler, François Gillet, Jean-Michel Gobat

The effect of cattle activity on pastures can be subdivided into three categories of disturbances: herbage removal, dunging and trampling. The objective of this study was to assess separately or in combination the effect of these factors on the potential a ...

2005

Analysis of microbial community structures and functions in heavy metal-contaminated soils using molecular methods

Fabienne Gremion

The contamination of agricultural land and groundwater by heavy metals is essentially linked to human activities. A major problem with heavy metals is that they cannot be biodegraded and therefore reside in the environment for long periods of time if they ...

EPFL2003

Comparative 16S rDNA and 16S rRNA sequence analysis indicates that Actinobacteria might be a dominant part of the metabolically active bacteria in heavy metal-contaminated bulk and rhizosphere soil

Fabienne Gremion

Bacterial diversity in 16S ribosomal DNA and reverse-transcribed 16S rRNA clone libraries originating from the heavy metal-contaminated rhizosphere of the metal-hyperaccumulating plant Thlaspi caerulescens was analysed and compared with that of contaminate ...

Wiley-Blackwell2003

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