A multiple ion-uptake phenotyping platform reveals shared mechanisms affecting nutrient uptake by roots.

ABSTRACT: Nutrient uptake is critical for crop growth and is determined by root foraging in soil. Growth and branching of roots lead to effective root placement to acquire nutrients, but relatively little is known about absorption of nutrients at the root surface from the soil solution. This knowledge gap could be alleviated by understanding sources of genetic variation for short-term nutrient uptake on a root length basis. A modular platform called RhizoFlux was developed for high-throughput phenotyping of multiple ion-uptake rates in maize (Zea mays L.). Using this system, uptake rates were characterized for the crop macronutrients nitrate, ammonium, potassium, phosphate, and sulfate among the Nested Association Mapping (NAM) population founder lines. The data revealed substantial genetic variatio

SUBMITTER: Griffiths M 

PROVIDER: S-EPMC8133564 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature