ISSN 2167-0447
International Journal of Agricultural Sciences ISSN: 2167-0447 Vol. 9 (8), pp. 001-007, August, 2019. © International Scholars Journals
Full Length Research Paper
Molecular genosystematic and physiological characteristics of fluorescent pseudomonads isolated from the rice rhizosphere of Iranian paddy fields
Mahmoud Reza Ramezanpour1*, Yuri Popov2, Kazem Khavazi3 and Hadi Asadi Rahmani3
1Agricultural and Natural Resources Research Center, Mazandaran Province, Iran.
2Microbiology and Biotechnology Department, Yerevan State University, Armenia.
3Soil and Water Research Institute, Iran.
Accepted 20 April, 2019
Abstract
The great progress achieved in the use of molecular genosystematics permits the study to solve many problems of specificity in the relationship between plant and microbial population of the rhizosphere. In this study, the plant growth promoting properties (indolileacetic acid production, phosphate solubilization and siderophore production) and genetic diversity of isolated Pseudomonas strains were examined. Bacterial strains were isolated from the rice rhizosphere of paddy fields in three Northern Provinces (Mazandaran, Gollestan and Guillan) of Iran. Our studies revealed that pseudomonads have plant growth promoting properties. Isolated strains showed high ability of IAA production, phosphate solubilization and siderophore production, while genotyping analysis showed that pseudomonads isolated from the rhizosphere of rice are genetically diverse. Nevertheless, the strains were distributed into 11 genotypes, including five groups of fluorescent pseudomonads.
Key words: Fluorescent pseudomonads, rice rhizosphere, IAA production, phosphate solubilization, siderophore production, gene typing.