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Peat-Based Inoculum of Bradyrhizobium japonicum and Sinorhizobium fredii Supplemented with Xanthan Gum

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Abstract

The addition of xanthan to high water retention capacity peat (HWRC) inoculants did not show differences on the survival of Bradyrhizobium japonicum E109. In low water retention capacity peats (LWRC) however, xanthan increased the survival of B.japonicum significantly. Xanthan showed the best effect at 0.1 g/l for B. japonicum, in contrast to Sinorhizobium fredii USDA205 where the concentrations evaluated (0–1.0 g/l) did not affected significantly its survival. Nevertheless, when the symbiotic performance on soybean was evaluated, the presence of 0.1 g xanthan/l increased the nodule number for both strains.

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Acknowledgements

We extend our thanks to the Consejo Nacional de Investigaciones Científicas y Ténicas (CONICET).

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Correspondence to M. D. Pastor.

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Lorda, G., Breccia, J.D., Barbeito, V. et al. Peat-Based Inoculum of Bradyrhizobium japonicum and Sinorhizobium fredii Supplemented with Xanthan Gum. World J Microbiol Biotechnol 23, 1–5 (2007). https://doi.org/10.1007/s11274-006-9186-5

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  • DOI: https://doi.org/10.1007/s11274-006-9186-5

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