Changes in nitrogen availability lead to a reprogramming of pyruvate metabolism.

ABSTRACT:

Background

Low availability of nitrogen (N) severely affects plant growth at different levels, which can be reverted by the resupply of N. To unravel the critical steps in primary metabolism underlying the growth adjustment in response to changes in N availability, transcriptomic and comprehensive metabolite analyses were performed in barley using primary leaves at early and later stages of N deprivation, and after N resupply to N-deficient plants.

Result

N deficiency in leaves caused differential regulation of 1947 genes, mostly belonging to the functional classes photosynthesis, cell wall degradation, lipid degradation, amino acid degradation, transcription factors, phytohormone metabolism and receptor-like kinases. Interestingly, 62% of the genes responding to low N were

SUBMITTER: Fataftah N 

PROVIDER: S-EPMC5935972 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature