Rhizosphere 5 - shining light on the world beneath our feet.

Below-ground traits that explain: Geographic distribution of plants Phosphorus availability can partly explain the distribution of two native Australian plant species. Since its discovery in 1988, the plant-beneficial rhizobacterium I Pseudomonas simiae i WCS417 served as a model strain in numerous investigations on how free-living mutualists colonise the rhizosphere, modulate plant immunity, promote plant growth, and influence microbe-microbe interactions in the soil. This special issue of Plant and Soil contains selected papers from the Rhizosphere 5 conference "Shining light on the world beneath our feet" that was held in Saskatoon, Canada, from 7 to 11 July 2019. Therefore, rational P fertilisation should be considered for efficient Zn biofortification on Zn-deficient soils and phytoremediation of Zn-contaminated soils. [Extracted from the article]