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Among 21 different nitrogen-fixing Bacillus isolates obtained from soil, 6 exhibited co-production of indole-3-acetic acid (IAA) and bacteriocin-like inhibitory substance (BLIS). One of these isolates was identified as Bacillus pumilus based on its phenotypical and biochemical properties as well as its 16S rRNA gene sequence; this isolate yielded 5.6(More)
Conventional polyurethanes (PUs) are among biomaterials not intended to degrade but are susceptible to hydrolytic, oxidative and enzymatic degradation in vivo. Biodegradable PUs are typically prepared from polyester polyols, aliphatic diisocyanates and chain extenders. In this work we have developed a degradable monomer based on α-amino acid to accelerate(More)
Lactococcosis, a significant emerging disease of fish caused by Lactococcus garvieae, has become one of the devastating problems due to its serious economic damage in aquaculture. The aim of this study was to isolate and characterize a lytic phage infecting L. garvieae as a potential bioagent for the treatment of lactococcosis. In this regard, one strain of(More)
Six nitrogen-fixing bacteria, isolated from roots of cultivated rice and wheat and also one strain from commercial biofertilizer, were identified using PCR amplification of 16S rDNA gene. Azospirillum strains isolating from rice (Tarom cultivar) and wheat (Golestan cultivar) roots that showed more growth in cellulose agar, CMC (Carboxymethylcellulose) (CM(More)
Gasoline-contaminated soil from Isfahan, Iran was selected to isolate a bacterium capable of desulfurizing dibenzothiophene (DBT). The isolated strain was named R1 and identified as Rhodococcus erythropolis through biochemical tests as well as sequencing of 16S rRNA gene. This strain could efficiently produce 2-hydroxybiphenyl (HBP) from DBT via the 4S(More)
To improve the production and activity of an alkaline zinc metalloprotease from Salinivibrio proteolyticus in response to ZnSO4 (ionic and nanoparticle forms) and low intensity direct electric current (LIDC). A DC of 50 µA for 10 min increased enzyme production from 35 to 53 U ml−1 when applied to the stationary phase bacterial cells. Zn2+ improved enzyme(More)
Coal is the most abundant fossil fuel containing sulfur and other elements which promote environmental pollution after burning. Also the silicon impurities make the transportation of coal expensive. In this research, two isolated fungi from oil contaminated soil with accessory number KF554100 (Fusarium oxysporum FE) and KC925672 (Exophiala spinifera FM)(More)
The Bacillus species have many applications in the preparation of various enzymes, probiotic, biofertilizer, and biomarkers for which the survival of resting cells and spore formation under different conditions are important. In this study, water and saline along with different mineral substances such as calcium carbonate, calcium phosphate, and silica were(More)
BACKGROUND Halomethanes are toxic and carcinogenic chemicals, which are widely used in industry. Also they can be formed during water disinfection by chlorine. Biodegradation by methylotrophs is the most important way to remove these pollutants from the environment. OBJECTIVES This study aimed to represent a simple and rapid method for quantitative study(More)
One of the most economically important bacterial pathogens of plants and plant products is Dickeya dadantii. This bacterium causes soft rot disease in tubers and other parts of the potato and other plants of the Solanaceae family. The application of restricted host range bacteriophages as biocontrol agents has recently gained widespread interest. This study(More)