• Zakiryaeva Saidakhon Ikramovna The Institute of Microbiology, Academy of Sciences of the Republic of Uzbekistan, Tashkent
Keywords: Free and immobilized cells, cotton rhizobacteria, phytohormonal activity, auxin, gibberellin, Indole-3-Acetic Acid


The phytohormonal activity of free and immobilized cells of B. subtilis BS-80, B. licheniformis BL-83, P. polymyxa PP-113 and P. amylolyticus PA-118 on phosphate flour have been studied. It was found that immobilized cells more actively synthesized IAA and gibberellins in comparison with free cells. The data obtained indicates that the phytohormonal activity of the salt-resistant cells of cotton rhizobacteria can be kept much better in the immobilized form than in the free form (in a refrigerator on jambs).


Polevoy V. V. Plant Physiology. M., "Higher school". 1989. 464 PP (In Russian).

Tsavkelova E. A., Klimova S. Yu., Cherdyntsev T. A., Netrusov A. I. Hormones and hormone-like compounds of microorganisms // Applied biochemistry and microbiology. — 2006. — 42, No 3. — P. 261- 268. (In Russian).

Kravchenko L. V., Azarova T. S., Makarova N. M., Tikhonovich I. A. The role of tryptophan in root exometabolites for phyto-stimulating activity of rhizobacteria. Microbiology. — 2004. — 73, No 2. — P. 195-198. (in Russian).

Morgun V. V., Kots S. Ya., Kirichenko E. V. Growth-stimulating rhizobacteria and their practical application // Physiology and biochemistry cult. plants'. 2009. Vol. 41. No. 3. P. 187-207. (in Russian).

Cozzolino L., Rufolo A., Zeina A. et al. Biocontrol activity of Bacillus spp. strains isolated from the rhizosphere of vegetable crops // J. Plant Pathol. — 2005. — 87, N 4. Spec. Issue. —P. 292.

Kang S. H., Cho K. K., Bok, J. D. et al. Cloning, sequencing and characterization of a novel phosphatase gene, phoI, from soil bacterium Enterobacter sp.4 // Curr. Microbiol. — 2006. — 52, N 4. — P. 243-248.

Derfling K. Hormones of the plants. Systematical approach. — M.: Mir, 1985. — 304 p. (In Russian).

Kurdish I. K. Granular microbial preparations for crop production: Science and practice. Kiev. 2001. 142 PP. (In Russian).

Gordon S. A., Weber R. P. Colometric estimation of indol acetic acid // Plant Physiol., 1951. – Vol. 26. – P. 192-195.

Muromtsev G. S., Nestiuk M. M. Method of quantitative determination of gibberellins // Bulletin of inventions, 1960. - No60. (in Russian).

Larkin M. A., Blackshields G., Brown N. P., Chenna R. and et al. Version 2.0. Bioinformatics, 2007. Vol. 23. – P. 2947-2948.

How to Cite
Zakiryaeva Saidakhon Ikramovna. (2020). PHYTOHORMONAL ACTIVITY OF IMMOBILIZED CELLS OF SALT-TOLERANT COTTON RHIZOBACTERIA AFTER LONG TERM STORAGE. International Academy Journal Web of Scholar, (3(45), 3-5.