Rhizosphere biology is approaching a century of investigations wherein growth-promoting rhizomicroorganisms (PGPR) have attracted special attention for their ability to enhance productivity, profitability and sustainability at a time when food security and rural livelihood are a key priority. Bio-inputs - either directly in the form of microbes or their by-products - are gaining tremendous momentum and harnessing the potential of agriculturally important microorganisms could help in provid...

Comprehensive review of key topics in root science, including root architecture, root growth regulators, root anatomy and nutrient acquisitionCoverage of root response to both biotic and abiotic variablesDiscusses the range of techniques to optimize root function, from phenotyping to identify desirable root traits and exploiting the genetics of root traits to the use of plant growth-promoting rhizobacteria (PGPR) and arbuscular mycorrhizal fungi (AM)