Co-ordinated expression of amino acid metabolism in response to N and S deficiency during wheat grain filling.

ABSTRACT: Increasing demands for productivity together with environmental concerns about fertilizer use dictate that the future sustainability of agricultural systems will depend on improving fertilizer use efficiency. Characterization of the biological processes responsible for efficient fertilizer use will provide tools for crop improvement under reduced inputs. Transcriptomic and metabolomic approaches were used to study the impact of nitrogen (N) and sulphur (S) deficiency on N and S remobilization from senescing canopy tissues during grain filling in winter wheat (Triticum aestivum). Canopy tissue N was remobilized effectively to the grain after anthesis. S was less readily remobilized. Nuclear magnetic resonance (NMR) metabolite profiling revealed significant effects of suboptimal N or S suppl

SUBMITTER: Howarth JR 

PROVIDER: S-EPMC2561146 | biostudies-literature | 2008

REPOSITORIES: biostudies-literature