New class of iron chelates

Spanish researchers have developed novel iron chelates with interesting agronomical properties. So reports Plant nutrition courier in the yesterday published August 2012 issue. The so-called aquo-complexes are structurally related to Fe³⁺-o,o-EDDHA and can directly be reduced by the ferric chelate reductase enzyme. This enzymatic redox reaction is necessary for root uptake of iron. According to the Spanish scientists the research on the promising iron chelates will be continued.
The aquo-complexes reminds one of Fe³⁺-o,p-EDDHA. Compared to Fe³⁺-o,o-EDDHA, this isomer is less stable, but is faster assimilated by plant roots. The Spanish researchers attribute these properties to the para-position of one of the hydroxy groups of the o,p-EDDHA isomer.

Source: Plant nutrition courier