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Microbial Activity in the Rhizosphere

  • Book
  • © 2006

Overview

Editors:
  1. K. G. Mukerji

    1. Department of Botany, University of Delhi, Delhi, India

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  2. C. Manoharachary

    1. Department of Botany, Osmania University, Hyderabad, India

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    You can also search for this editor in PubMed   Google Scholar

  3. Jagjit Singh

    1. Environmental Building Solutions Ltd., Milton Keynes, United Kingdom

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    You can also search for this editor in PubMed   Google Scholar

  • Chapters are written by acknowledged scientists who have made significant contributions to the complex field of the rhizosphere
  • Includes supplementary material: sn.pub/extras

Part of the book series: Soil Biology (SOILBIOL, volume 7)

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Table of contents (16 chapters)

  1. Front Matter

    Pages I-XVI
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  2. Rhizosphere Biology – an Overview

    • Chakravarthula Manoharachary, Krishna G. Mukerji
    Pages 1-15

  3. Methods and Techniques for Isolation, Enumeration and Characterization of Rhizosphere Microorganisms

    • Nandanavanam Ranganayaki, Kolluru V. B. R. Tilak, Chakravarthula Manoharachary, Krishna G. Mukerji
    Pages 17-38

  4. Root Exudates as Determinant of Rhizospheric Microbial Biodiversity

    • Geeta Singh, Krishna G. Mukerji
    Pages 39-53

  5. Rhizosphere Microbial Community Dynamics

    • Roopam Kapoor, Krishna G. Mukerji
    Pages 55-69

  6. The Role of Rhizotrons and Minirhizotrons in Evaluating the Dynamics of Rhizoplane-Rhizosphere Microflora

    • Bobbie L. McMichael, John C. Zak
    Pages 71-87

  7. Significance of Bacteria in the Rhizosphere

    • David B. Nehl, Oliver G. G. Knox
    Pages 89-119

  8. Interactions Among Beneficial Microorganisms

    • Anil Kumar Saxena, Rasika Shende, Minakshi Grover
    Pages 121-137

  9. Bacterial Community Composition and Activity in Rhizosphere of Roots Colonized by Arbuscular Mycorrhizal Fungi

    • Petra Marschner, Sari Timonen
    Pages 139-154

  10. Mycorrhizosphere Concept

    • Sari Timonen, Petra Marschner
    Pages 155-172

  11. Molecular Techniques for Understanding the Microbial Community Structure in Mycorrhizosphere

    • Pankaj Krishna, Mondem S. Reddy, Tulasi Satyanarayana
    Pages 173-198

  12. Arbuscular Mycorrhizal Fungi and the Formand Functioning of the Root System

    • David Atkinson
    Pages 199-222

  13. Fungal Recognition Responses to Host Derived Signals by Arbuscular Mycorrhizal Fungi

    • Cristiana Sbrana
    Pages 223-243

  14. Interactions Between Ectomycorrhizal Fungi and Rhizospheric Microbes

    • Mondem S. Reddy, Tulasi Satyanarayana
    Pages 245-263

  15. Role of Beneficial Microsymbionts on the Plant Performance and Plant Fitness

    • Borbala Biró, Krisztina Köves-Péchy, Merope Tsimilli-Michael, Reto J. Strasser
    Pages 265-296

  16. Bacteria Helping Mycorrhiza Development

    • Robin Duponnois
    Pages 297-310

  17. Rhizosphere Regulation of Preinfection Behavior of Oomycete Plant Pathogens

    • Eric B. Nelson
    Pages 311-343

  18. Back Matter

    Pages 345-349
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Keywords

About this book

The rhizosphere is a very complex environment in which the effects of the plant on soil microorganisms and the effects of the microorganisms on the plant are interacting and are interdependent. Plant root exudates and breakdownproducts attract microbes and feed them and, in turn, the plants often bene?t from the microbes. Interactions among microorg- ismsandplantrootsareessentialfornutritionalrequirementsoftheplant. Plant growth, development and productivity are largely dependent on the soil environment in the root region rhizosphere. The new techniques of studying the rhizosphere enables us to get a much better understanding of the dynamics of the rhizosphere population, such rhizosphere studies beingofinteresttoagriculturists,soilbiologists,chemists,microbiologists andmolecularbiologists. The rhizosphere microbes in?uence the root environment in several ways. They may change the oxidation-reduction potential, in?uence the availabilityofmoistureandnutrients,producegrowthinhibitingorgrowth promoting substances in the form of exudates, provide competition and possiblyinducemanyothereffects.Mycorrhizalassociationsarebene?cial in mineral uptake and in increasing root surface area for effective ion absorption. Antagonism,competitionandsynergisminsoilandtherhizoplane(r- zosphere) are the most important microbial interactions to consider in the study of rhizosphere biology. With the growing information on the production of growth regulators, competitiveness of the microbes in the rhizosphere, microsymbionts, and other factors, their effect upon plant growth will become more evident. Experiments on the introduction of microbes or their products in the rhizosphere will help to improve our understandingofthebiologyoftherhizosphere.

Editors and Affiliations

  • Department of Botany, University of Delhi, Delhi, India

    K. G. Mukerji

  • Department of Botany, Osmania University, Hyderabad, India

    C. Manoharachary

  • Environmental Building Solutions Ltd., Milton Keynes, United Kingdom

    Jagjit Singh

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