Identification of Quorum Quenching N-Acyl Homoserine Lactonases from Priestia aryabhattai J1D and Bacillus cereus G Isolated from the Rhizosphere.

Several pathogenic bacteria communicate using N-acyl homoserine lactone (AHL) as a quorum sensing (QS) molecule. The process of interfering with the QS system is known as quorum quenching (QQ), it is an effective tool to control QS-dependent virulence in pathogens. In the present study, rhizosphere bacterial isolates were screened for their ability to produce AHL lactonase enzyme as QQ molecules, which hydrolyses AHL signalling molecules and consequently blocks the QS system.

Lactic Acid Bacteria in the Management of Oily Spot Disease of Pomegranate.

The bacterial pathogen of oily spot disease, a major threat to pomegranate growers, was isolated from infected plant parts of pomegranate collected from orchards in Maharashtra, India. The pathogen was identified as Xanthomonas axonopodis pv. punicae (Xap) following phenotypic and molecular characterization by 16S rRNA gene sequencing.

Isolation and characterization of a rare waterborne lytic phage of Salmonella enterica serovar Paratyphi B.

A lytic phage of Salmonella serovar Paratyphi B, named φSPB, was isolated from surface waters of the Pavana River in India. Phage φSPB is a member of the Podoviridae family and is morphologically similar to the 7-11 phages of the C3 morphotype of tailed phages, characterized by a very long, cigar-shaped head. The head measured approximately 153 × 57 nm, and the tail size was 12 × 7 nm.

Removal of Ni (II) ions from aqueous solutions by biosorption onto two strains of Yarrowia lipolytica.

The removal of Ni (II) ions from aqueous solutions by two strains of Yarrowia lipolytica (NCIM 3589 and NCIM 3590) under different environmental conditions was studied. Biosorption of Ni (II) was enhanced with an increase in pH, temperature, agitation, contact time and initial concentration of the metal ion. NCIM 3589 and NCIM 3590 at pH 7.

Environmental and industrial applications of Yarrowia lipolytica.

Yarrowia lipolytica is a fungus that degrades hydrophobic substrates very efficiently. The fungus displays several important characteristics that have encouraged researchers to study various basic biological and biotechnological applications in detail. Although the organism has been used as model system for studying dimorphism, salt tolerance, heterologous protein expression, and lipid accumulation, there are no recent reviews on the environmental and industrial applications of this organism.

Removal of chromium (VI) ions from aqueous solution by adsorption onto two marine isolates of Yarrowia lipolytica.

The removal of chromium (VI) ions from aqueous solutions by the biomass of two marine strains of Yarrowia lipolytica (NCIM 3589 and 3590) was studied with respect to pH, temperature, biomass, sea salt concentration, agitation speed, contact time and initial concentration of chromium (VI) ions. Maximum biosorption was observed at pH 1.0 and at a temperature of 35 degrees C.