Accumulation of metallothionein transcripts in response to iron, copper and zinc: Metallothionein and metal-chelate reductase Plantentuin Meise / Agentschap Plantentuin Meise
It has been proposed that plant metallothionein (MT) sequesters excess copper, and possibly zinc, thereby preventing adverse metal-protein interactions. These metals can accumulate either gratuitously in response to other nutritional deficiencies or in plants grown in either copper- or zinc-enriched medium. Data are presented which confirm that in pea roots grown in low available iron there is increased (i) copper accumulation, (ii) MT ...