The present study deals with isolation, taxonomic characterization and biological activity of medicinal mushroom Ganoderma spp. The results of the present study Ganoderma sp. DKR1 and Ganoderma sp. DKR2 were isolated from two hard woods of Casurina equiestifolia and Morinda tinctoria respectively in Cuddalore district, Tamil Nadu, India. The Ganoderma isolate were characterized for macro and mi...

A new insertion element of 1,449 bp with 25-bp perfect terminal repeats, designated IS1409, was identified in the chromosome of 4-chlorobenzoate-degrading Arthrobacter sp. strain TM1 NCIB12013. Upon insertion, IS1409 causes a target duplication of 8 bp. IS1409 carries only a single open reading frame of 435 codons encoding the transposase TnpA. Both TnpA and the overall organization of IS1409 a...

Strains of Bacillus subtilis are plant growth-promoting bacteria (PGPB) of many crops and are used as inoculants. PGPB colonization is an important trait for success of a PGPB on plants. A specific probe, based on the 16 s rRNA of Bacillus subtilis, was designed and evaluated to distinguishing, by fluorescence in situ hybridization (FISH), between this species and the closely related Bacillus a...

The distribution of tryptophanase was studied. The highest observed specific activity, mumoles per minute per milligram (dry weight) cells, is given in parentheses after each species. Tryptophanase was inducible and repressible in Escherichia coli (.914), Paracolobactrum coliforme (.210), Proteus vulgaris (.146), Aeromonas liquefaciens (.030), Photobacterium harveyi (.035), Sphaerophorus varius...

A simple method for detection of radiation-inducible radiation resistance was developed by irradiating aliquots (0.01 ml) of cell suspension on agar plates. Part of each experimental plate was subjected to an induction treatment, and subsequent radiation resistance was compared with that of untreated cells on the same plate. The UV radiation resistance of a Micrococcus sp. was increased approxi...

The mononuclear cobalt(III) complex derived from 1,10-phenanthroline and maltose ([Co(phen)2maltose]Cl2∙3H2O) (1) has been synthesized and characterized in aqueous solution. Its characterization was based on its optical and spectroscopic properties. The antimicrobial activity of this complex was screened in vitro against the microorganisms Escherichia coli DH5a, Salmonella enterica sv Enteritid...