Does the graminaceous plants have passive uptake of Fe(II) via a passive Fe(II)-transporter enzyme? Or it it only dicots and non-graminaceous plants that have the Fe(II)-transporter enzyme? Also, can Fe(III)-reductase reduce Fe-EDDHA (Ethylenediamine-N,N'-bis(2-hydroxyphenylacetic acid)) and Fe-DPTA (diethylene triamine pentaacetic acid) without the cost of energy?
Best regards,
Mathias
