NDLI: FeDFOB and FeEDDHA immobilized on Sepharose gels as an Fe sources to plants

Content Provider	Springer Nature Link
Author	Yehuda, Zehava Hadar, Yitzhak Chen, Yona
Copyright Year	2011
Abstract	The idea of immobilizing Fe and the formation of a slow-release fertilizer has been considered in several studies. However, none of the proposed materials were found efficient in correcting Fe deficiency. In the present study immobilization of Fe chelates on a solid matrix, as a first step in the production and supply process, is tested.The free forms of the siderophores desferrioxamine B (DFOB) and ethylendiaminebis(o-hydroxyphenyl-acetic acid) (EDDHA) were immobilized on p-nitrophenylchloroformate activated Sepharose and tested as Fe source for both strategy I (peanuts and cucumber, Arachis hypogeae L. and Cucumis sativus L., respectively) and strategy II (barley and wheat, Hordeum vulgare L. and Triticum aestivum L., respectively), plants. Plants grown in hydroponic cultures at pH 7.3 were supplied with the immobilized Fe-chelate either free in solution or confined in a dialysis tube with or without EDDHA in the outer solution as a carrier.Cucumber and barley plants were found efficient in acquiring Fe from the immobilized chelates.The effectiveness in utilizing the immobilized Fe-chelate differed among cultivars and was related to the efficiency of the reductases activity or phytosiderophores secretion systems, in Strategy I and Strategy II plants, respectively.
Starting Page	379
Ending Page	391
Page Count	13
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	350
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-08-03
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Desferrioxamine B (DFOB) Ethylendiaminebis(o-hydroxyphenyl-acetic acid) (EDDHA) Fe chelators Immobilized chelates Reduction Phytosiderophores Ecology Plant Physiology Soil Science & Conservation Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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