Environmental Microbiology Reports

Tue, 02/02/2021 - 22:08
Cadmium (Cd) is a common toxic heavy metal in the environment, and bacteria have evolved different strategies to deal with Cd‐toxicity. Here, a bacterium designated Pseudoalteromonas sp. MT33b possessing strong Cd‐resistance was isolated from the Mariana Trench sediments. Supplement of cysteine significantly increased bacterial Cd‐resistance and removal rate. Biofilm formation was demonstrated to...
Thu, 01/07/2021 - 22:09
This work aimed at studying the unconfirmed hypothesis predicting the existence of a connection between coffee farm microbiome and the resulting spontaneous fermentation process. Using Illumina‐based amplicon sequencing, 360 prokaryotes and 397 eukaryotes were identified from coffee fruits and leaves, over‐ripe fruits, water used for coffee de‐pulping, depulped coffee beans, soil, and temporal...
Wed, 12/16/2020 - 22:09
Coxiellosis or Q fever is an important global occupational zoonotic disease caused by one of the most contagious bacterial pathogens‐ Coxiella burnetii, which ranks one among the 13 global priority zoonoses. The detection of C. burnetii infection is exhibiting an increasing trend in high‐ risk personnel around the globe. It has increasingly been detected from foods of animal origin (including...
Thu, 12/03/2020 - 22:10
The environmental reservoirs of different serogroups of V.cholerae causing cholera in the flowing freshwater bodies of the tribal areas of Odisha are not known. So the present study was conducted from June‐2017 to March‐2020 to find out the environmental reservoirs of V.cholerae serogroups in the water and plankton samples collected from the river, nala, stream and chua from Rayagada district....
Tue, 10/13/2020 - 22:12
Sponges have co‐evolved for billions of years alongside several types of microorganisms, which aside from participating in the animal's diet, are mostly symbionts. Since most of the genetic repertoire in the holobiont genome is provided by microbes, it is expected that the host‐associated microbiome will be at least partially heritable. Sponges can therefore acquire their symbionts in different...
Thu, 10/08/2020 - 22:12
During the 2019 United Nations Summit on Climate Change held in Madrid, also known as COP25, the European Commission announced new support for projects to improve soil health and fight global warming through sustainable agriculture. Discussions at the summit laid the foundation for defining the steps and guidelines necessary to ensure that agriculture and forestry practices adopt more...
Wed, 08/12/2020 - 22:12
Escherichia coli O157:H7, a causative agent of haemolytic uremic syndrome, can enter into a viable but non‐culturable (VBNC) state in response to harsh stress. Bacteria in this state can retain membrane integrity, metabolic activity and virulence expression, which may present health risks. However, virulence expression and resuscitation ability of the VBNC state are not well understood. Here, we...
Wed, 08/05/2020 - 22:12
Antimicrobial resistance among isolates from wild animals is increasingly reported. Extended‐spectrum beta‐lactamase (ESBL)‐producing Enterobacteriaceae, and particularly Escherichia coli, have spread worldwide as one of the most common multidrug resistant organisms. The aim of this study was to determine the carriage rate of ESBL‐producing E. coli isolates and genetic characteristics in wild...
Tue, 07/21/2020 - 22:10
V. cholerae form biofilm, which is essential for their survival under harsh environmental conditions. The eDNA produced during biofilm formation and interaction with other components like vibrio polysaccharide is less studied in Vibrio cholerae despite its importance in biofilm structure and stability. In this study, we selected two strains of V. cholerae, which produced sufficient extracellular...
Tue, 06/16/2020 - 22:11
Vibrio cholerae O1, a natural inhabitant of estuarine environments, is found in a dormant, viable but nonculturable (VBNC) state during interepidemic periods. Although the individual roles of abiotic factors affecting VBNC formation have been extensively studied, their interplay in driving this phenomenon remains largely unaddressed. Here, we identified that major abiotic factors synergize with...
Wed, 05/27/2020 - 03:27
The recent emergence of Vibrio infections at high latitudes represents a clear human health risk attributable to climate change. Here, we investigate the population dynamics of three Vibrio species: Vibrio parahaemolyticus, Vibrio vulnificus and Vibrio cholerae within a British coastal estuarine site, with contrasting salinity and temperature regimes during an intense heatwave event. Water...
Mon, 02/24/2020 - 03:33
Methylmercury is a neurotoxin that bioaccumulates from seawater to high concentrations in marine fish, putting human and ecosystem health at risk. High methylmercury levels have been found in the oxic subsurface waters of all oceans, but only anaerobic microorganisms have been shown to efficiently produce methylmercury in anoxic environments. The microaerophilic nitrite oxidizing bacteria...
Mon, 02/24/2020 - 03:33
Copper is an essential element but in excess is highly toxic and therefore cytoplasmic levels must be tightly controlled. Member of the genus Burkholderia are highly resistant to various heavy metals and are often isolated from acidic soils where copper bioavailability is high. In this study, we employed transposon sequencing (Tn‐Seq) to identify copper resistance genes in Burkholderia...