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פותח על ידי קלירמאש פתרונות בע"מ -
Enhanced iron (fe) uptake by synthetic sidero-phores in corn roots
Year:
1992
Source of publication :
Journal of Plant Nutrition
Authors :
בר-יוסף, בניהו
;
.
גנמור-נוימן, רות
;
.
Volume :
15
Co-Authors:
Ganmore-Neumann, R., Department of Soil Chemistry and Plant Nutrition, Organization, The Volcani Center, P.O.B. 6, Bet Dagan 50250, Israel
Bar-Yosef, B., Department of Soil Chemistry and Plant Nutrition, Organization, The Volcani Center, P.O.B. 6, Bet Dagan 50250, Israel
Shanzer, A., Departyrnent of Organic Chemistry, Weizrnann Institute of Science, Rehovot 76100, Israel
Libman, J., Departyrnent of Organic Chemistry, Weizrnann Institute of Science, Rehovot 76100, Israel
Facilitators :
From page:
1027
To page:
1037
(
Total pages:
11
)
Abstract:
The objective of this study was to investigate whether a specific siderophore-mediated iron uptake (possibly preceded by a reduction step) occurs in corn roots at a specific recognition site. The activity of ferrichrome analogs and ferrioxamine B, as iron carriers into corn roots, was studied. Stereo-specific recognition of. Fe-ferrichrome analogs was observed during Fe uptake by corn roots. All ferrichrome analogs forming Fe(III) complexes of the same absolute configuration as does natural ferrichrome (jv-cis), enhance Fe uptake, while their enantiomers lack biological activity. Gallium (III) failed to be taken up under analogous conditions, indicating that synthetic ferrichrome analogs mediate the Fe uptake via a specific reduction step. Within certain limits, binding energy of the chelator did not play a role in enhancing iron uptake. It is suggested that the iron uptake mechanism in corn roots involves binding to a specific chiral receptor in conjunction with a reductive process. © 1992, Taylor & Francis Group, LLC. All rights reserved.
Note:
Related Files :
corn
iron
plant nutrition
roots
Zea mays
עוד תגיות
תוכן קשור
More details
DOI :
10.1080/01904169209364378
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22554
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:52
Scientific Publication
Enhanced iron (fe) uptake by synthetic sidero-phores in corn roots
15
Ganmore-Neumann, R., Department of Soil Chemistry and Plant Nutrition, Organization, The Volcani Center, P.O.B. 6, Bet Dagan 50250, Israel
Bar-Yosef, B., Department of Soil Chemistry and Plant Nutrition, Organization, The Volcani Center, P.O.B. 6, Bet Dagan 50250, Israel
Shanzer, A., Departyrnent of Organic Chemistry, Weizrnann Institute of Science, Rehovot 76100, Israel
Libman, J., Departyrnent of Organic Chemistry, Weizrnann Institute of Science, Rehovot 76100, Israel
Enhanced iron (fe) uptake by synthetic sidero-phores in corn roots
The objective of this study was to investigate whether a specific siderophore-mediated iron uptake (possibly preceded by a reduction step) occurs in corn roots at a specific recognition site. The activity of ferrichrome analogs and ferrioxamine B, as iron carriers into corn roots, was studied. Stereo-specific recognition of. Fe-ferrichrome analogs was observed during Fe uptake by corn roots. All ferrichrome analogs forming Fe(III) complexes of the same absolute configuration as does natural ferrichrome (jv-cis), enhance Fe uptake, while their enantiomers lack biological activity. Gallium (III) failed to be taken up under analogous conditions, indicating that synthetic ferrichrome analogs mediate the Fe uptake via a specific reduction step. Within certain limits, binding energy of the chelator did not play a role in enhancing iron uptake. It is suggested that the iron uptake mechanism in corn roots involves binding to a specific chiral receptor in conjunction with a reductive process. © 1992, Taylor & Francis Group, LLC. All rights reserved.
Scientific Publication
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