Geographical and climatic distribution of lentil-nodulating rhizobia in Iran.

Lentil is one of the most important legumes cultivated in various provinces of Iran. However, there is limited information about the symbiotic rhizobia of lentils in this country. In this study, molecular identification of lentil-nodulating rhizobia was performed based on 16S-23S rRNA intergenic spacer (IGS) and recA, atpD, glnII, and nodC gene sequencing.

Diversity and abundance of culturable nitrogen-fixing bacteria in the phyllosphere of maize.

Aims: The present study aimed at gaining an insight into the abundance and genetic diversity of culturable N-fixing epiphyte bacteria on the phyllosphere of maize in arid and semi-arid regions of Iran.

Methods And Results: Leaf samples of the maize variety, 'single cross 704' (Zea mays L.) were collected from different locations in Iran.

Identification and molecular characterization of Azotobacter chroococcum and Azotobacter salinestris using ARDRA, REP, ERIC, and BOX.

Azotobacter chroococcum and A. salinestris do not possess significant and distinct morphological and physiological differences and are often mistaken with each other in microbiological research. In this study, 12 isolates of Azotobacter isolated by standard protocol from soils were identified morphologically and physiologically as A.