There are increasing applications of diazotrophic rhizobacteria in the sustainable agriculture system. A field experiment on young immature oil palm was conducted to quantify the uptake of N derived from N₂ fixation by the diazotroph Bacillus sphaericus strain UPMB-10, using the ¹⁵N isotope dilution method. Eight months after ¹⁵N application, young immature oil palms that received 67% of standa...

Lysinibacillus sphaericus produces mosquitocidal binary toxins (Bin toxins) deposited within a balloon-like exosporium during sporulation. Unlike Bacillus cereus group strains, the exosporium of L. sphaericus is usually devoid of the hair-like nap, an external filamentous structure formed by a collagen-like protein, BclA. In this study, a new collagen-like exosporium protein encoded by Bsph_041...

Arsenic contamination of global water supplies has come to the forefront in policy decisions in recent decades. However, the effects of arsenic on lower trophic levels of insects inhabiting contaminated ecosystems are not well understood. One approach to document both acute and sublethal effects of toxicants like arsenic is to assay them in combination with microbial pathogens to evaluate shift...

The current paper presents the results of an experimental study on application calcium carbonate precipitation bacteria as a new approach to repairing damaged concrete when exposed high temperatures. To do so, cylindrical and cubic specimens were initially heat in furnace for 1 h, after reaching two different temperatures 600 800 °C. A rate 5.5 °C per minute was used achieve target Then, types ...

Thirty-six strains of aerobic endospore-forming bacteria confirmed by polyphasic taxonomic methods to belong to Bacillus amyloliquefaciens, Bacillus cereus, Bacillus licheniformis, Bacillus megaterium, Bacillus subtilis (including Bacillus niger and Bacillus globigii), Bacillus sphaericus, and Brevi laterosporus were grown axenically on nutrient agar, and vegetative and sporulated biomasses wer...

Two insecticidal bacteria are used as larvicides to control larvae of nuisance and vector mosquitoes in many countries, Bacillus thuringiensis ssp. israelensis and B. sphaericus. Field studies show both are effective, but serious resistance, as high as 50 000-fold, has evolved where B. sphaericus is used against Culex mosquitoes. To improve efficacy and deal with even greater potential problems...

In this study; a total of seven bacterial strains (Bacillus cereus FD-63, Bacillus sphaericus FD-49, subtilis EK-7, thuringiensis subsp. kurstakii FDP-41, Brevibacillus brevis CP-1, Pseudomonas chlororaphis Nem-28 and fluorescens KŞN-1) one fungus isolate (Beauveria bassiana ET-10) were tested for determining biological control activity against on mature (Leptinotarsa decemlineata Say) 1., 2. 3...