Abstract
Two plant growth-promoting bacteria, Bacillus subtilis and Pseudomonas corrugata, immobilized in a sodium alginate based formulation were evaluated for their survival, viability and plant growth-promoting ability after 3 years of storage at 4 °C. Populations of both of the bacterial isolates recovered from the immobilized sodium alginate beads were in the order of 108 cfu g−1. The plant-based bioassay indicated that the plant growth promotion ability of both of the bacterial isolates was equal to those of fresh broth-based formulations. The bacterial isolates retained the root colonization, and antifungal and enzyme activities in the alginate-based formulation during storage.
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Acknowledgments
Dr. U. Dhar, the director of the institute is acknowledged for providing the facilities. Dr L. M. S. Palni, former director, is thanked for his support and encouragement. The Department of Biotechnology and the Union Ministry of Environment and Forests, Government of India, New Delhi, are acknowledged for the financial support.
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Trivedi, P., Pandey, A. Recovery of plant growth-promoting rhizobacteria from sodium alginate beads after 3 years following storage at 4 °C. J Ind Microbiol Biotechnol 35, 205–209 (2008). https://doi.org/10.1007/s10295-007-0284-7
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DOI: https://doi.org/10.1007/s10295-007-0284-7