In this paper, the production of humic substances (HS) through the bacterial solubilization of low rank coal (LRC) was evaluated. The evaluation was carried out by 19 bacterial strains isolated in microenvironments with high contents of coal wastes. The biotransformed LRC and the HS produced were quantified in vitro in a liquid growth medium. The humic acids (HA) obtained from the most active b...

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Abstract The aim of this study was to isolate and characterize the Phosphate solubilizing bacteria from rhizosphere Zea mays L., Jeneponto Regency. This research conducted in several stages; i.e, sampling, medium preparation, sample dilution, isolation, characterization form gram staining, biochemical tests, quantitative tests phosphate solubility. Soil samples were diluted 0.9% NaCl soil conta...

The effect of seed inoculation by phosphate solubilizing microorganisms and different levels of phosphorus chemical fertilizer on forage and grain quality of barley (Karoon x Kavir cultivar) was studied in Experimental Farm of College of Agronomy and Animal Sciences, University of Tehran during 2006-2007 growing seasons. Three phosphorus fertilizer levels of 0 (control), 30 and 60 kg ha were al...

A total of twenty five endophytic bacteria were isolated from green gram Vigna radiata (L.) plant. Four isolates which have shown better response for plant growth promoting effects on green gram plants were used as Plant Growth Promoting Bacteria (PGPB) in this study. It has been detected that up to 40% of the genomic 16S rRNA of isolated bacteria belongs to the Azotobacter genus. The result fo...

Phosphatase Producing Bacteria (PPB) and Inorganic Phosphate Solubilizing Bacteria (IPSB) are important to reef nutrition. These microbes and phosphate concentration play a significant role in the productivity of coral reef ecosystems. A study was conducted in Gulf of Mannar coral reef ecosystem to understand the diversity of these groups of bacteria and their competence in mineralizing the pho...

Zinc deficiency in cereal crops is a significant issue for human health. Rice, being staple food crop, could cause severe zinc deficiency. The use of zinc-solubilizing bacteria (ZSB) an ecological tactic to raise bioavailable the soil that may alleviate yield loss and, subsequently, enhance nutritional value rice. In presented study, treating rice plants with plant growth-promoting rhizobacteri...