Environmental microbiology as a mosaic of explored ecosystems and issues

Faure, Denis; Bonin, Patricia; Duran, Robert

doi:10.1007/s11356-015-5164-5

Cited by 13 publications

(5 citation statements)

References 130 publications

(113 reference statements)

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“…In contrast, the rocks found at the Agriculture, Capingui Outlet, Marau Grain, and Marau Animal sample sites had significantly less biofilm biomass (Table 2) have repercussions on the quantity and functioning of biofilms and even on ecosystem processes (Bier et al, 2015;Faure et al, 2015;Zhang et al, 2015;Battin et al, 2016).…”

Section: Accepted Manuscriptmentioning

confidence: 98%

Indiscriminate use of glyphosate impregnates river epilithic biofilms in southern Brazil

Fernandes

Aparicio

Bastos

et al. 2019

Science of The Total Environment

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Indiscriminate use of glyphosate impregnates river epilithic biofilms in southern Brazil ABSTRACT: Epilithic biofilms are communities of microorganisms composed mainly of microbial cells, extracellular polymeric substances from the metabolism of microorganisms, and inorganic materials. Biofilms are a useful tool to assess the impact of anthropic action on aquatic environments including the presence of pesticide residues such as glyphosate. The present work seeks to monitor the occurrence of glyphosate and AMPA residues in epilithic biofilms occurring in a watershed. For this, epilithic biofilm samples were collected in the Guaporé River watershed in the fall and spring seasons of 2016 at eight points. Physicochemical properties of the water and biofilms were determined. The determination of glyphosate and AMPA was performed using an ultra-high performance liquid chromatograph coupled to a tandem mass spectrometer. The concentrations of glyphosate and AMPA detected in epilithic biofilms vary with the season (from 90 to 305 μg kg-1 for glyphosate and from 50 to 240 μg kg-1 for AMPA, in fall and spring, respectively) and are strongly influenced by the amount of herbicide applications. Protected locations and those with poor access not demonstrate the presence of these contaminants. In the other seven points of the Guaporé River watershed, glyphosate was detected in concentrations ranging from 10 to 305 μg kg-1 , and concentrations of AMPA ranged from 50 to 670 μg kg-1. An overview of the contamination in the Guaporé watershed shows that the most affected areas are located in the Marau sub-watershed, which are strongly influenced by the presence of the city of Marau. This confirms the indiscriminate use of glyphosate in the urban area (weed control, domestic gardens and horticulture) and constitutes a problem for human and animal health. The results showed that biofilms can accumulate glyphosate resulting from the contamination of water courses and are sensitive to the sources of pollution and pesticides present in rivers.

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Section: Accepted Manuscriptmentioning

confidence: 98%

Indiscriminate use of glyphosate impregnates river epilithic biofilms in southern Brazil

Fernandes

Aparicio

Bastos

et al. 2019

Science of The Total Environment

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“…In recent times, the integrative studies of microbial interactions are exploring the diversity and complexity of bacterial relationships (which included microbial signal transduction and sensing) at various levels (cellular, population, community, or even at the holobiont level) (Faure et al 2015). (Lüttge and Scarano 2004) reported that ecophysiological performance varied largely at intra-specific level in time and space, often (but not always) at inter-species level, ecophysiological performance was related to species dominance in the community.…”

Section: Resultsmentioning

confidence: 99%

“…The lack of isolates from saltern sample may be due to the hygiene standards that are maintained for salterns or due to prevalent extreme environmental conditions. Many isolates, although being low abundance that dominated the community in an intertidal zone either appeared occasionally or persisted at low frequencies, functioning as a seed bank (Faure et al 2015).…”

Section: Isolation and Identification Of Isolatesmentioning

confidence: 99%

Microcosm-based interaction studies between members of two ecophysiological groups of bioemulsifier producer and a hydrocarbon degrader from the Indian intertidal zone

Markande

Nerurkar

2016

Environ Sci Pollut Res

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Isolates were obtained from intertidal zone site samples from all five western and one eastern coastal states of India and were screened. These ecophysiological groups of aerobic, mesophilic, heterotrophic, sporulating, and bioemulsifier-producing bacteria were from Planococcaceae and Bacillaceae. This is the first report of bioemulsifier production by Sporosarcina spp., Lysinibacillus spp., B. thuringiensis, and B. flexus. In this group, Solibacillus silvestris AM1 was found to produce the highest emulsification activity (62.5 %EI) and the sample that yielded it was used to isolate the ecophysiological group of non-bioemulsifier-producing, hydrocarbon-degrading bacteria (belonging to Chromatiales and Bacillales). These yielded hitherto unreported degrader, Rheinheimera sp. CO6 which was selected for the interaction studies (in a microcosm) with bioemulsifier-producing S. silvestris AM1. The gas chromatographic study of these microcosm experiments revealed increased degradation of benzene, toluene, and xylene (BTX) and the growth of Rheinheimera sp. CO6 in the presence of bioemulsifier produced by S. silvestris AM1. Enhancement of the growth of S. silvestris AM1 in the presence of Rheinheimera sp. CO6 was observed possibly due to reduced toxicity of BTX suggesting mutualistic association between the two. This study elucidates the presence and interaction between enhancers and degraders in a hydrocarbon-contaminated intertidal zone and contributes to the knowledge during application of the two in remediation processes.

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“…Both chemical and microbial pollutants reach surface waters via point sources (such as urban sewage) or diffuse sources (linked to runoff) of pollution. It is well known that during rainfall events, particles from terrestrial soils and river basin sediments remobilize, and affect water quality (Garcia-Esteves et al 2007;Dumas et al 2015;Faure et al 2015) because soils and sediments store pathogens, nutrients and pollutants. Thus, suspended particles have a crucial role in the transfer of contaminants to surface waters through runoff and in the resuspension of river sediments during storms (Turner and Millward 2002;Amalfitano et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Insights on the particle-attached riverine archaeal community shifts linked to seasons and to multipollution during a Mediterranean extreme storm event

Noyer

Bernard

Verneau

et al. 2023

Environ Sci Pollut Res

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Delsaut, S. Kunesch and C. Menniti (CEFREM laboratory) for helping us during sampling. We thank Research and Testing Laboratories for kindly providing NGS primer assay list. We would like to acknowledge the Genotoul bioinformatics platform Toulouse Midi-Pyrénées and Sigenae group (http://bioinfo.genotoul.fr; Toulouse, France) for computing and storage resources. We also thank D. Ning and N. Xiao for MENAP support (http://ieg4.rccc.ou.edu/mena/main.cgi).

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Environmental microbiology as a mosaic of explored ecosystems and issues

Cited by 13 publications

References 130 publications

Indiscriminate use of glyphosate impregnates river epilithic biofilms in southern Brazil

Indiscriminate use of glyphosate impregnates river epilithic biofilms in southern Brazil

Microcosm-based interaction studies between members of two ecophysiological groups of bioemulsifier producer and a hydrocarbon degrader from the Indian intertidal zone

Insights on the particle-attached riverine archaeal community shifts linked to seasons and to multipollution during a Mediterranean extreme storm event

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