The biosynthetic pathway for the rare compatible solute mannosylglucosylglycerate (MGG) accumulated by Rhodopirellula baltica, a marine member of the phylum Planctomycetes, has been elucidated. Like one of the pathways used in the thermophilic bacterium Petrotoga mobilis, it has genes coding for glucosyl-3-phosphoglycerate synthase (GpgS) and mannosylglucosyl-3-phosphoglycerate (MGPG) synthase ...

The expression of the neutral protease gene (npr) from the thermophilic Bacillus sp. BT1 strain was studied in its natural host and in mesophilic Bacillus subtilis. In the thermophilic BT1 strain, the transcription of the protease gene is initiated from its own promoter, just 5' to the gene. In contrast, in heterologous B. subtilis this thermophilic npr promoter does not function, and expressio...

Six laboratory experiments were carried out to investigate the effect of the fungicide Benomyl on pure cultures of some plant growth promoting bacteria (PGPB) and some fungi. The highest LD50 was recorded for Bacillus circulans and proved to be the most resistant to the fungicide, followed by Azospirillum braziliense, while Penicillium sp. was the most affected microorganism. LD50 values for th...

Growth-dependent cell-cell communication termed quorum sensing is a key regulatory system in bacteria for controlling gene expression including virulence factors. In this study five potential bacterial pathogens including Bacillus sp. W2.2, Klebsiella sp. W4.2, Pseudomonas sp. W3 and W3.1 and Serratia sp. W2.3 were isolated from diseased Tilapia fish in Malaysia, supplied by the leading global ...

Bacillus is a rhizobacterium that can help with the nutrient cycle in soil. Plant growth-promoting rhizobacteria (PGPR) be found rhizosphere of many plants. This research was divided into two parts: (1) test ability genus isolates to withstand various NaCl concentrations saline and acidic soils; (2) quantification secondary metabolites produced by form hormones organic acids. valezensis (BPF2),...

Development of multi drug resistant organism has been high due to improper use of antibiotics. That made the necessity to develop new drug molecules. In this study an effort was made to find a new alternative. A wild type microorganism was isolated from soil and was identified as Bacillus and confirmed as Bacillus subtilis species by 16S r RNA sequencing. The strain was identified to have the a...

In this study, a total of twenty four phosphate solubilizing bacterial (PSB) colonies were isolated on the Pikovskaya’s agar medium from different effluent exposed sediment of river Ganga. The bacteria showing clear halo zones around their colonies were considered as phosphate solubilizers. Out of 24 phosphate solubilizing bacterial isolates, 4 potential isolates showing highest halo zone on Pi...