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Uptake of iron (Fe-59) complexed to water-extractable humic substances by sunflower leaves
(Taylor & Francis Inc, Philadelphia, 2003)
A research was carried out to evaluate the leaves' ability to utilize Fe supplied as a complex with water-extractable humic substances (WEHS) and the long-distance transport of Fe-59 applied to sections of fully expanded ...
Nitrate does not result in iron inactivation in the apoplast of sunflower leaves
(Amer Soc Plant Biologists, Rockville, 2003)
It has been hypothesized that nitrate (NO3-) nutrition might induce iron (Fe) deficiency chlorosis by inactivation of Fe in the leaf apoplast (H.U. Kosegarten, B. Hoffmann, K. Mengel [1999] Plant Physiol 121: 1069-1079). ...