Iron deficiency affects nitrogen metabolism in cucumber (Cucumis sativus L.) plants.

ABSTRACT:

Background

Nitrogen is a principal limiting nutrient in plant growth and development. Among factors that may limit NO3- assimilation, Fe potentially plays a crucial role being a metal cofactor of enzymes of the reductive assimilatory pathway. Very few information is available about the changes of nitrogen metabolism occurring under Fe deficiency in Strategy I plants. The aim of this work was to study how cucumber (Cucumis sativus L.) plants modify their nitrogen metabolism when grown under iron deficiency.

Results

The activity of enzymes involved in the reductive assimilation of nitrate and the reactions that produce the substrates for the ammonium assimilation both at root and at leaf levels in Fe-deficient cucumber plants were investigated. Under Fe deficiency, only nitrat

SUBMITTER: Borlotti A 

PROVIDER: S-EPMC3539955 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature