Abstract
Azospirilla are generally regarded as rhizosphere bacteria and colonize the root surface and only a few strains are able to infect plants. The stimulatory effect exerted by Azospirillum has been attributed to several mechanisms but under certain environmental and soil conditions, Azospirillum can positively influence plant growth, crop yields, and N-content of the legume. Most Azospirillum–rhizobacteria co-inoculation studies have focused on the final effects on plant growth and nodulation parameters; in contrast, few data are available on the simultaneous effect of double inoculation and stressful conditions on the early signalling exchange between the symbiotic partners. Co-inoculation of legume with rhizobia plus Azospirillum exerted changes on the concentration, content, and/or distribution of several mineral nutrients in roots and/or shoots of plants, change in flavonoids, and can help to tolerate stress. This chapter summarized some effects that occur when legumes are co-inoculated with Azospirillum.
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Acknowledgments
This research was partially supported by the CONICET PIP 112-201101-00309 and PID 2010 MINCyT Córdoba. JCV, LAG, and CK are fellows from CONICET and MSD and NSP are members of the research career of CONICET, Argentina.
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Vicario, J.C., Gallarato, L.A., Paulucci, N.S., Perrig, D.S., Bueno, M.Á., Dardanelli, M.S. (2015). Co-inoculation of Legumes with Azospirillum and Symbiotic Rhizobia. In: Cassán, F., Okon, Y., Creus, C. (eds) Handbook for Azospirillum. Springer, Cham. https://doi.org/10.1007/978-3-319-06542-7_22
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DOI: https://doi.org/10.1007/978-3-319-06542-7_22
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