Rhizosphere Interactions

From MicrobeWiki, the student-edited microbiology resource

Introduction

The rizosphere refers to the region of soil near plant roots. Compared to the rest of soil, this area is relatively luxurious- nutrients are more plentiful and bacteria abound. Sylvia et al compare the rizosphere to an oasis.

Soil Environment Associated with Plants

Rhizoplane

Rhizosphere

Physical Environment

Plant Exudates

Microbial Communities

Microbe-Plant Interactions in the Rhizosphere

Azotobacter

Azotobacter and Azospirillum, as well as other bacterial species (e.g., Bacillus) produce plant growth-stimulating hormones such as gibberellic and indoleacetic acid.

Inoculants

Soil Properties Around the Rhizosphere

References

  • Sylvia, D., Fuhrmann,J., Hartel, P., Zuberer, D. 2005. Principles and Applications of Soil Microbiology. Pearson Education Inc. New Jersey.

Edited by students of Kate Scow