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Next-GenerationEU","award":["PRE-2019-091246"],"award-info":[{"award-number":["PRE-2019-091246"]}]},{"name":"European Union Next-GenerationEU","award":["RD 289\/2021"],"award-info":[{"award-number":["RD 289\/2021"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>The application of synthetic iron chelates to overcome iron deficiency in crops is leading to a high impact on the environment, making it necessary to find more friendly fertilizers. A promising alternative is the application of biodegradable iron chelates, such as those based on siderophores. In the present work, seven bacterial strains of the genus Pseudomonas were selected for their ability to secrete pyoverdine, a siderophore with a high affinity for iron, which could be used as a biofertilizer. The concentration of siderophores secreted by each bacterium expressed as desferrioxamine B equivalents, and the pyoverdine concentration was determined. Their potential as Fe biofertilizers was determined based on their capacity to complex Fe, determining the maximum iron complexation capacity at alkaline pH and selecting the RMC4 strain. The biostimulant capacity of the RMC4 strain was evaluated through the secretion of organic acids such as the hormone Indol-3-acetic acid or glutamic acid, among others, in a kinetic assay. Finally, the genome of RMC4 was determined, and the strain was identified as Pseudomonas monsensis. The annotated genome was screened for genes and gene clusters implicated in biofertilization and plant growth promotion. Besides iron mobilization, genes related to phosphorus solubilization, production of phytohormones and biological control, among others, were observed, indicating the suitability of RMC4 as an inoculant. In conclusion, RMC4 and its siderophores are promising sources for Fe biofertilization in agriculture.<\/jats:p>","DOI":"10.3390\/plants12234054","type":"journal-article","created":{"date-parts":[[2023,12,2]],"date-time":"2023-12-02T13:45:41Z","timestamp":1701524741000},"page":"4054","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":34,"title":["Evaluation of Siderophores Generated by Pseudomonas Bacteria and Their Possible Application as Fe Biofertilizers"],"prefix":"10.3390","volume":"12","author":[{"given":"Jos\u00e9 Mar\u00eda","family":"Lozano-Gonz\u00e1lez","sequence":"first","affiliation":[{"name":"Department of Agricultural Chemistry and Food Science, Universidad Aut\u00f3noma de Madrid, Av. Francisco Tom\u00e1s y Valiente 7, 28049 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9790-7458","authenticated-orcid":false,"given":"Silvia","family":"Valverde","sequence":"additional","affiliation":[{"name":"Department of Agricultural Chemistry and Food Science, Universidad Aut\u00f3noma de Madrid, Av. Francisco Tom\u00e1s y Valiente 7, 28049 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2051-911X","authenticated-orcid":false,"given":"M\u00f3nica","family":"Montoya","sequence":"additional","affiliation":[{"name":"Department of Biology, Universidad Aut\u00f3noma de Madrid, c\/Darwin, 2, 28049 Madrid, Spain"},{"name":"Departamento de Qu\u00edmica y Tecnolog\u00eda de Alimentos, Escuela T\u00e9cnica Superior de Ingenier\u00eda Agron\u00f3mica, Alimentaria y de Biosistemas, Universidad Polit\u00e9cnica de Madrid, Ciudad Universitaria, 28040 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2498-9768","authenticated-orcid":false,"given":"Marta","family":"Mart\u00edn","sequence":"additional","affiliation":[{"name":"Department of Biology, Universidad Aut\u00f3noma de Madrid, c\/Darwin, 2, 28049 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0701-2939","authenticated-orcid":false,"given":"Rafael","family":"Rivilla","sequence":"additional","affiliation":[{"name":"Department of Biology, Universidad Aut\u00f3noma de Madrid, c\/Darwin, 2, 28049 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9130-2909","authenticated-orcid":false,"given":"Juan J.","family":"Lucena","sequence":"additional","affiliation":[{"name":"Department of Agricultural Chemistry and Food Science, Universidad Aut\u00f3noma de Madrid, Av. Francisco Tom\u00e1s y Valiente 7, 28049 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5035-0311","authenticated-orcid":false,"given":"Sandra","family":"L\u00f3pez-Rayo","sequence":"additional","affiliation":[{"name":"Department of Agricultural Chemistry and Food Science, Universidad Aut\u00f3noma de Madrid, Av. Francisco Tom\u00e1s y Valiente 7, 28049 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1016\/j.tplants.2014.07.005","article-title":"Iron nutrition, biomass production, and plant product quality","volume":"20","author":"Briat","year":"2015","journal-title":"Trends Plant Sci."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"821","DOI":"10.1080\/01904168209363012","article-title":"The chemistry of iron in soils and its availability to plants","volume":"5","author":"Lindsay","year":"1982","journal-title":"J. Plant Nutr."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1080\/01904168409363174","article-title":"Diagnostic practices to identify iron deficiency in higher plants","volume":"7","author":"Chaney","year":"1984","journal-title":"J. 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