Humiron® is an effective biodegradable source of chelated iron for plants: An iron-59 uptake study
Here we tested plants' ability to use iron (Fe) from the water-soluble commercial product Humiron® (a complex of Fe with highly purified and solubilized humic acids extracted from leonardite) as a source of chelated Fe for both strategy 1 (e.g. cucumber) and strategy 2 (e.g. barley) plant speci...
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| Format: | Article |
| Language: | English |
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University of Priština - Faculty of Natural Science and Mathematics, Kosovska Mitrovica
2018-01-01
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| Series: | The University Thought: Publication in Natural Sciences |
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| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/1450-7226/2018/1450-72261801001N.pdf |
| Summary: | Here we tested plants' ability to use iron (Fe) from the water-soluble commercial product Humiron® (a complex of Fe with highly purified and solubilized humic acids extracted from leonardite) as a source of chelated Fe for both strategy 1 (e.g. cucumber) and strategy 2 (e.g. barley) plant species grown under low Fe conditions. Iron from radioactive 59Fe-labelled Humiron® can easily be acquired by strategy 1 plant species via reduction of FeIII by the inducible plasma membrane-bound reductase, similarly to the reduction of synthetic FeIII-chelates. Strategy 2 plant species can also efficiently utilize Fe from Humiron® via ligand exchange between humates and phytosiderophores (PS). Moreover, the efficacy of Humiron® is comparable to Fe complexed with waterextractable humic substances obtained form peat. Being easily biodegradable this product can be used as an effective Fe source for organic crop production. |
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| ISSN: | 1450-7226 2560-3094 |