Rhizosphere Metagenome of Plants Adapted to Acid Mine Drainage

Synonyms

Functional metagenome of acid mine drainage rhizosphere; Rhizosphere metagenome

Definition

Microbial communities associated to the roots of vascular plants are diverse and complex as a result of the nutrients released by the plants. In Tinto River, an acid mine drainage environment, the endemic heather Erica andevalensis grows at the bank of the river, and thus the microorganisms from its rhizosphere are exposed to acid pH and high concentration of toxic metals and metalloids. Functional study of the metagenome of these microorganisms has shed light on novel mechanisms of adaptation to these extreme conditions.

Introduction

The rhizosphere is the narrow zone of soil immediately surrounding the root system of vascular plants and constitutes a complex and dynamic environment where diverse microbial communities interact directly with the roots. The exudates secreted by the roots contain a diverse array of compounds that serves important roles as nutrients and chemical attractants...