Ethylene regulation of root growth and phytosiderophore biosynthesis determines iron deficiency tolerance in wheat (<ce:italic>Triticum</ce:italic> spp)

• The relationship between ethylene and PS biosynthesis was determined in wheat under Fe deficiency. • A higher plant Fe uptake in the bread over durum wheat was caused by a higher induction of PS under Fe deficiency. • A higher ACS but a lower NAS transcript expression resulted in higher ethylene b...
Ausführliche Beschreibung

• The relationship between ethylene and PS biosynthesis was determined in wheat under Fe deficiency. • A higher plant Fe uptake in the bread over durum wheat was caused by a higher induction of PS under Fe deficiency. • A higher ACS but a lower NAS transcript expression resulted in higher ethylene but a lower PS production in durum wheat. • Cobalt treatment inhibited root ethylene biosynthesis but improved PS synthesis and release under iron deficiency. • Effect of ethylene on PS is caused by regulated partitioning of SAM between the ethylene and the PS biosynthetic pathways. Ausführliche Beschreibung