The mycorrhizal pathway of zinc uptake contributes to zinc accumulation in barley and wheat grain.

ABSTRACT:

Background

Increasing zinc (Zn) concentrations in crops is important for alleviation of human Zn deficiency. Arbuscular mycorrhizal fungi (AMF) contribute to plant Zn uptake, but their contribution to Zn in the edible portion of crops has not yet been investigated. This study aimed to quantify the mycorrhizal pathway of Zn uptake into grain of wheat and barley under varying soil Zn availabilities. Bread wheat (Triticum aestivum) and barley (Hordeum vulgare) were grown in pots with a hyphal compartment containing ⁶⁵Zn. Plants were inoculated with Rhizophagus irregularis and grown at three soil Zn concentrations. Radioactive Zn in grain and straw was measured and the contribution of AMF to Zn uptake was calculated.

Results

The mycorrhizal pathway of Zn uptake contri

SUBMITTER: Coccina A 

PROVIDER: S-EPMC6456977 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature