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Role of Fluorescent Pseudomonads Siderophore to Increase Bean Growth Factors

Author

Listed:
  • Mahtab Omidvari
  • Roh Allah Sharifi
  • Masoud Ahmadzadeh
  • Payman Abaszadeh Dahaji

Abstract

Since the Iranian soils are almost limy, application of Fluorescent pseudomonas have a major potential toprovide the microelements needed for crop plants due to their siderophore production ability. In this work threeindigenous high siderophore producing strains, a reference strain 7NSK2 and its pyoverdine mutant, MPFM1,were employed. To explore their efficiency, siderophore production was investigated by CAS-agar method.Effect of bacteria inoculation on the shoot and root dry weight increase as well as chlorophyll content of the cropwere assayed under greenhouse condition. Furthermore, synergistic effects of bacteria strains and iron chelates,Fe-EDDHA and Fe-EDTA, and zinc sulphate on promotion of common bean plants were estimated. StrainUTPF76 with 20.4 mm halo in CAS-agar medium had the highest siderophore production capability. The resultsof the greenhouse experiments revealed that three of strains, 7NSK2, UTPF5 and UTPF76 increased the plantgrowth factors significantly. Addition of iron chelates and zinc sulphate improved bacterial efficacy. StrainsMPFM1 and UTPF61 not only did not have positive effect on the plant growth but also in some cases decreasedthe growth factors. In colonization survey UTPF76 and UTPF5 had the greatest colonization activity. Inconclusion, our results showed that indigenous stains have a high potential in biotechnological applications andtheir industrial application is recommended.

Suggested Citation

  • Mahtab Omidvari & Roh Allah Sharifi & Masoud Ahmadzadeh & Payman Abaszadeh Dahaji, 2010. "Role of Fluorescent Pseudomonads Siderophore to Increase Bean Growth Factors," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 2(3), pages 242-242, August.
  • Handle: RePEc:ibn:jasjnl:v:2:y:2010:i:3:p:242
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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