Microbial Activity in the Rhizoshere

  • K. G. Mukerji
  • C. Manoharachary
  • Jagjit Singh

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

Table of contents

  1. Front Matter
    Pages I-XVI
  2. Chakravarthula Manoharachary, Krishna G. Mukerji
    Pages 1-15
  3. Nandanavanam Ranganayaki, Kolluru V. B. R. Tilak, Chakravarthula Manoharachary, Krishna G. Mukerji
    Pages 17-38
  4. Geeta Singh, Krishna G. Mukerji
    Pages 39-53
  5. Roopam Kapoor, Krishna G. Mukerji
    Pages 55-69
  6. David B. Nehl, Oliver G. G. Knox
    Pages 89-119
  7. Anil Kumar Saxena, Rasika Shende, Minakshi Grover
    Pages 121-137
  8. Sari Timonen, Petra Marschner
    Pages 155-172
  9. Pankaj Krishna, Mondem S. Reddy, Tulasi Satyanarayana
    Pages 173-198
  10. Mondem S. Reddy, Tulasi Satyanarayana
    Pages 245-263
  11. Borbala Biró, Krisztina Köves-Péchy, Merope Tsimilli-Michael, Reto J. Strasser
    Pages 265-296
  12. Robin Duponnois
    Pages 297-310
  13. Back Matter
    Pages 345-349

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.


Fitness Marsch arbuscular mycorrhizal fungi biodiversity environment microbe microbial communities microorganism mycorrhizosphere rhizotrons root exudates

Editors and affiliations

  • K. G. Mukerji
    • 1
  • C. Manoharachary
    • 2
  • Jagjit Singh
    • 3
  1. 1.Department of BotanyUniversity of DelhiDelhiIndia
  2. 2.Department of BotanyOsmania UniversityHyderabadIndia
  3. 3.Environmental Building Solutions Ltd.Milton KeynesUnited Kingdom

Bibliographic information