background petroleum hydrocarbons are mix compounds and divided into four groups: saturates, aromatics, resins and asphalten. among various phases of crude-oil, the alkanes with medium length chain are favorable substrates that rapidly degraded, although short-chain alkanes are very toxic and long-chain alkanes have low solubility in water that reduce its bioavailability and make resistant to b...

The genetic basis for bacterial mercury methylation has been described recently. For insights into the physiology of mercury-methylating bacteria, we present genome sequences for Desulfococcus multivorans strain DSM 2059, Desulfovibrio alkalitolerans strain DSM 16529, and Desulfovibrio species strain X2.

A strain of Francisella endociliophora was isolated from a laboratory culture of the marine ciliate Euplotes raikovi. Here, we report the complete genome sequence of the bacterial strain FSC1006 (Francisella Strain Collection, Swedish Defence Research Agency, Umeå, Sweden).

considering the emerging importance of phenotypic markers as indicators of cell function and differentiation, we studied patterns ofcd44 and cd45rb expression in cd8+ murine t cells with prior exposure to antigen or staphylococcal enterotoxin b ( seb ). following in vivo priming with two purified protein derivatives (one from a virulent who strain and the other from an avirulent strain), t cell...

Background: Polygalacturonase is an important pectin degrading enzyme. The western honey bee (Apis mellifera L.) collects pollens from different flowers which are rich source of pectin. The microbiota in the gut of honey bee, release polygalacturonase enzyme and help in pectin digestion. This study aims to isolate and characterize novel polygalacturonase producing bacterial strain from honey be...

To cause infections, bacteria must colonize their host. Bacterial pathogens express various molecules or structures able to promote attachment to host cells(1). These adhesins rely on interactions with host cell surface receptors or soluble proteins acting as a bridge between bacteria and host. Adhesion is a critical first step prior to invasion and/or secretion of toxins, thus it is a key even...

Volatile compounds, such as short chain alcohols, acetoin, and 2,3-butanediol, produced by certain strains of root-associated bacteria (rhizobacteria) elicit induced systemic resistance in plants. The effects of bacterial volatile compounds (BVCs) on plant and fungal growth have been extensively studied; however, the impact of bacterial BVCs on bacterial growth remains poorly understood. In thi...

Bacterial cold water disease (BCWD) in ayu (Plecoglossus altivelis altivelis) has a serious impact on aquaculture and fisheries. There is known to be a significant difference among ayu strains with regard to mortality caused by BCWD. In this study, the immune response of different ayu strains against Flavobacterium psychrophilum infection was observed. One strain was resistant to infection by F...