Biochemical and genetic analyses of N metabolism in maize testcross seedlings: 2. Roots.

ABSTRACT:

Key message

Intracellular factors differentially affected enzyme activities of N assimilation in the roots of maize testcrosses where alanine aminotransferase and glutamate synthase were the main enzymes regulating the levels of glutamate. N is a key macronutrient for plant growth and development. Breeding maize with improved efficiency in N use could help reduce environmental contamination as well as increase profitability for the farmers. Quantitative trait loci (QTL) mapping of traits related to N metabolism in the root tissue was undertaken in a maize testcross mapping population grown in hydroponic cultures. N concentration was negatively correlated with root and total dry mass. Neither the enzyme activities nor metabolites were appreciably correlated between the root and leaf

SUBMITTER: Silva IT 

PROVIDER: S-EPMC5945762 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature