Many Gram-negative plant pathogenic bacteria employ a N-acylhomoserine lactone (AHL)-based quorum sensing (QS) system to regulate their virulence traits. A sustainable biocontrol strategy has been developed using quorum quenching (QQ) bacteria to interfere with QS and protect plants from pathogens. Here, the prevalence and the diversity of QQ strains inhabiting tobacco leaf surfaces were explor...

Microorganisms are major key players for sustaining the soil quality degraded by intensive use of synthetic chemicals for increasing crop production and therefore, use of them as inoculants or biofertilizers is an integral part of sustainable agriculture. An effort was, therefore, made to examine the effect of cellulose degrading bacterial isolates on legume (Chickpea) based cropping systems. N...

The antifungal compound 2,4-diacetylphloroglucinol-producing bacterium, Pseudomonas fluorescens strain LRB3W1, inhibits the growth of Fusarium oxysporum f. sp. lycopersici, and controls Fusarium wilt of tomato caused by F. oxysporum f. sp. lycopersici. On the other hand, Serratia marcescens strain B2, which produces cell wall-degrading enzyme chitinases, did not inhibit fungal growth and the su...

Pine wilt disease (PWD) has a tremendous impact on worldwide forestlands, both from the environmental and economical viewpoints. Monochamus sp., a xylophagous insect from the Cerambycidae family, plays an important role in dissemination of the pinewood nematode, Bursaphelenchus xylophilus, the primary pathogenic agent of PWD. This study investigates, for the first time, the bacterial communitie...

Tobramycin, a new aminoglycoside antimicrobial, was evaluated as therapy for infections due to Gram-negative bacilli in 15 seriously ill patients with underlying diseases. Three of 10 patients with Gram-negative bacteraemia also had a urinary tract infection. Two patients had a respiratory tract infection, one had cellulitis, one had a urinary tract infection, and another had septic phlebitis. ...

This study was carried out to investigate the effects of plant growth promoting rhizobacteria (PGPR) on the antioxidant status, photosynthesis, mineral content and growth of lettuce (Lactuca sativa L.) under different soil salinity conditions. Increasing salinity in the soil decreased plant growth, photosynthesis, stomatal conductance, chlorophyll content, and mineral uptake compared to soil wi...

Indiscriminate disposal of wood shavings and sawdust into the Lagos lagoon usually constitute environmental hazard varying degree threats to marine biotic communities. In this study we applied terminal-restriction fragment length polymorphism (T-RFLP) illumina sequencing 16S ribosomal RNA gene, describe microbial ecology decomposing wastes in lagoon, Nigeria. The terminal restriction fragments ...

Rhizobacteria isolated from wild dipterocarp saplings in Central Kalimantan, Indonesia, were subjected to Salkowski's reagent test, which is often used in detecting indolic substances. Among 69 isolates grown in a low-nitrogen medium supplemented with L-tryptophan (TRP), culture fluids of 29 strains were positive to the test, in which 17 bacteria turned red and other 10 pink. All the red type r...

Biogenic nanoparticles (NPs) derived from microbes present an excellent opportunity to deal with various challenges in medicine, diagnosis, environment and agriculture. In the area of agriculture sciences, researchers are facing related excessive utilization pesticides which can be answered by utilizing plant growth-promoting (PGP) microbes. Herein, we have employed culture filtrate two PBP bac...