Effect of the Nanoclay Treated Streptomyces sp. UTMC 3136 as a Bioformulation on the Growth of Helianthus annuus
2022
Zahra, Tamkeen | Badiei, Alireza | Hamedi, Javad
Biofertilizers based on plant growth-promoting actinobacteria are used as potential alternatives to chemical fertilizers for sustainable agricultural systems. However, successful application of PGPA to agricultural land is challenging. The present study was an attempt to develop and evaluate the effect of a low-cost biofertilizer named NCTS (nanoclay-treated-Streptomyces) based on Streptomyces sp. UTMC 3136 spores amalgamated in a hybrid material of nanoclay Na-montmorillonite K10-glycerol-water substrate. In addition, the effect of NCTS on sunflower growth was investigated. In vivo tests showed a statistically significant increase in the agronomic characteristics of sunflowers treated with NCTS. Characterization of NCTS by FTIR, Raman spectroscopy, and scanning electron microscopy testified to the structural alignment and good adhesion of NCTS components. The viability of NCTS was 100% after 72 h of storage at 4 °C. Overall, the present study attempted to validate the efficacy of the formulation of Streptomyces sp. UTMC 3136 in nanoclay for growth improvement of sunflower. It was the first study to show the administration of PGPA in combination with nanomaterials as a growth enhancing biofertilization agent for sunflower.
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