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Signals in the Rhizosphere and Their Effects on the Interactions Between Microorganisms and Plants

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Bacteria in Agrobiology: Plant Probiotics

Abstract

Plants exude a variety of organic compounds and inorganic ions into the rhizosphere, which change the chemistry and biology of the root microenvironment. The rhizosphere is the zone of soil surrounding a plant root, where the biology and chemistry of the soil are influenced by the root. All chemical compounds secreted by plants into the rhizosphere are collectively named rhizodepositions. Microorganisms modify the biochemical and physical properties of the rhizosphere and contribute to root growth and plant survival. However, the fate of root exudates in the rhizosphere and the nature of their reactions in the soil remain poorly understood. In this chapter, we analyze different types of molecules produced by roots and their interaction with the rhizosphere.

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Acknowledgments

This research was partially supported by the Secretaría de Ciencia y Técnica de la Universidad Nacional de Río Cuarto (SECyT-UNRC) and CONICET PIP 112-200801-00537. NP is a doctoral fellow of CONICET; JV is a doctoral fellow of Agencia Nacional de Investigaciones Científicas (ANPCyT). MSD and WG are members of the research career of CONICET, Argentina.

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Authors and Affiliations

  1. Departamento de Biología Molecular, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional N36, Km. 601, CP X5804BYA, Río Cuarto, Córdoba, Argentina

    N. S. Paulucci, J. C. Vicario, A. B. Cesari, M. B. García, M. S. Dardanelli & W. F. Giordano

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  1. N. S. Paulucci
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  2. J. C. Vicario
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  3. A. B. Cesari
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  4. M. B. García
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  5. M. S. Dardanelli
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  6. W. F. Giordano
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Corresponding author

Correspondence to M. S. Dardanelli .

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Editors and Affiliations

  1. Dept. of Botany Microbiology, Gurukul Kangri Univ., Haridwar (U.K.), 249404, India

    Dinesh K. Maheshwari

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Paulucci, N.S., Vicario, J.C., Cesari, A.B., García, M.B., Dardanelli, M.S., Giordano, W.F. (2012). Signals in the Rhizosphere and Their Effects on the Interactions Between Microorganisms and Plants. In: Maheshwari, D. (eds) Bacteria in Agrobiology: Plant Probiotics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27515-9_11

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