{"title":"Humiron®是植物螯合铁的有效可生物降解来源:铁-59摄取研究","authors":"M. Nikolić","doi":"10.5937/UNIVTHO8-16360","DOIUrl":null,"url":null,"abstract":"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 59 Fe-labelled Humiron ® can easily be acquired by strategy 1 plant species via reduction of Fe III by the inducible plasma membrane-bound reductase, similarly to the reduction of synthetic Fe III -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 water-extractable humic substances obtained form peat. Being easily biodegradable this product can be used as an effective Fe source for organic crop production.","PeriodicalId":22896,"journal":{"name":"The University Thought - Publication in Natural Sciences","volume":"8 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2018-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"HUMIRON® IS AN EFFECTIVE BIODEGRADABLE SOURCE OF CHELATED IRON FOR PLANTS: AN IRON-59 UPTAKE STUDY\",\"authors\":\"M. Nikolić\",\"doi\":\"10.5937/UNIVTHO8-16360\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"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 59 Fe-labelled Humiron ® can easily be acquired by strategy 1 plant species via reduction of Fe III by the inducible plasma membrane-bound reductase, similarly to the reduction of synthetic Fe III -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 water-extractable humic substances obtained form peat. Being easily biodegradable this product can be used as an effective Fe source for organic crop production.\",\"PeriodicalId\":22896,\"journal\":{\"name\":\"The University Thought - Publication in Natural Sciences\",\"volume\":\"8 1\",\"pages\":\"1-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-03-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The University Thought - Publication in Natural Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5937/UNIVTHO8-16360\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The University Thought - Publication in Natural Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5937/UNIVTHO8-16360","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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 species grown under low Fe conditions. Iron from radioactive 59 Fe-labelled Humiron ® can easily be acquired by strategy 1 plant species via reduction of Fe III by the inducible plasma membrane-bound reductase, similarly to the reduction of synthetic Fe III -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 water-extractable humic substances obtained form peat. Being easily biodegradable this product can be used as an effective Fe source for organic crop production.