This review summarizes the recent advances in understanding the ecophysiological role and structure-function features of methanotrophic bacteria living in various cold ecosystems. The occurrence of methanotrophs in a majority of psychrosphere sites was verified by direct measurement of their methane-utilizing activity, by electron microscopy and immunofluorescent observations, and analyses of s...

Six bacterial isolates from the U.S. DOE Subsurface Science Program and three reference bacteria were tested for resistance to UV light and gamma radiation. The subsurface isolates included three aerobic, pigmented, Gram positive bacteria and three microaerophilic, non-pigmented, Gram negative bacteria. Deinococcus radiodurans was the most resistant bacterium to both types of radiation, with a ...

AbstrakMangrove memiliki mikroorganisme salah satunya bakteri. Lumpur mangrove kandungan hidrogen sulfida. Bakteri aerobik memetabolisme sulfida ini menjadi senyawa sulfat. Isolasi menggunakan medium Thiosulfat Mineral Medium. Isolat yang diamati secara makroskopis. dipilih dari hasil pengamatan mikroskopik, uji katalase dan motilitas. diuji juga kinerja penurunan dengan terbaik dilanjutkan unt...

Improving the aerobic stability of silages M ICRO-ORGANISMS involved in the ensiling process include beneficial bacteria (homolactic acid bacteria), detrimental bacteria (for example, clostridia) and unwanted yeasts and moulds. In a good silage pit (or bun), air is eliminated by respiration from the plant and packing, thus preventing the growth of detrimental aerobic microbes. When air is elimi...

OBJECTIVES The study evaluated the antibacterial effect of VIOlight (VL) Personal Travel Toothbrush Sanitizer on biofilms after toothbrush exposure to human saliva compared to Listerine Antiseptic (LA), 3% hydrogen peroxide (3%HP) and water. METHODS Twenty toothbrush heads (n=5/Gp) were immersed in saliva and to allow for bacterial growth and biofilm formation for 24h. VL sanitizer and antise...

The objective of this study was to determine the aerobic bacteria and fungi associated with raw camel’s milk. Samples were collected from farms in Bahri (Khartoun North) area in the Sudan. The isolated aerobic bacteria (one hundred and fifteen isolates) were identified as (85.26%) Gram–negative, while (14.73%) were Gram-positive. The Gram-negative bacteria were 39.13% Escherichia coli serotypes...

In the reaction of hydrazide of 3,4-dimethoxyphenylacetic acid (1) with isothiocyanate the respective thiosemicarbazide derivatives (2) were obtained. Further cyclization with 2% NaOH led to the formation of 3-[(3,4-dimethoxyphenyl)methyl]-4-substituted-1,2,4-triazoline-5-thiones (3). The structures of all new products were confirmed by analytical and spectroscopic methods. All compounds were s...

In this study, we propose a novel way to describe the variety of environmental adaptations of Archaea. We have clustered 57 Archaea by using a non-redundant set of proteomic features, and verified that the clusters correspond to environmental adaptations to the archaeal habitats. The first cluster consists dominantly of hyperthermophiles and hyperthermoacidophilic aerobes. The second cluster jo...

INTRODUCTION The transmission of harmful pathogens by arthropods is an increasing health concern. More concretely, flies are known to be able to transmit the infectious agent mechanically. OBJECTIVE The present work shows a case report occurred from foodservice establishments where were isolated and identified, at the first time, Megaselia spp. in the food preparation place. Furthermore, micr...