Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation
Iron deficiency in plants is caused by a low availability of iron in the soil, and its main visual symptom is leaf yellowing due to a decrease in chlorophyll content, along with a reduction in plant growth and fruit quality. Foliar sprays with Fe compounds are an economic alternative to the treatmen...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Universidad Pública de Navarra |
| Repositorio: | Academica-e. Repositorio Institucional de la Universidad Pública de Navarra |
| OAI Identifier: | oai:academica-e.unavarra.es:2454/38727 |
| Acceso en línea: | https://hdl.handle.net/2454/38727 |
| Access Level: | acceso abierto |
| Palabra clave: | Fe plant nutrition Fe deficiency Foliar Fe fertilization Fe chelates Fe(III)-chelate reductase Fe (II) transporter PM H+-ATPase Chlorosis |
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Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediationFuentes, MartaBacaicoa, EvaRivero Marcos, MikelZamarreño, Ángel M.García-Mina, José MaríaFe plant nutritionFe deficiencyFoliar Fe fertilizationFe chelatesFe(III)-chelate reductaseFe (II) transporterPM H+-ATPaseChlorosisIron deficiency in plants is caused by a low availability of iron in the soil, and its main visual symptom is leaf yellowing due to a decrease in chlorophyll content, along with a reduction in plant growth and fruit quality. Foliar sprays with Fe compounds are an economic alternative to the treatment with expensive synthetic Fe-chelates applied to the soil, although the efficacy of foliar treatments is rather limited. Generally, plant response to Fe-foliar treatments is monitored by measuring chlorophyll content (or related parameters as SPAD index). However, different studies have shown that foliar Fe sprays cause a local regreening and that translocation of the applied Fe within the plant is quite low. In this context, the aim of this study was to assess the effects of foliar applications of different Fe compounds [FeSO4, Fe(III)-EDTA, and Fe(III)-heptagluconate] on Fe-deficient cucumber plants, by studying the main physiological plant root responses to Fe deficiency [root Fe(III) chelate reductase (FCR) activity; acidification of the nutrient solution; and expression of the Fe deficiency responsive genes encoding FCR, CsFRO1, Fe(II) root transporter CsIRT1, and two plasma membrane H+-ATPases, CsHA1 and CsHA2], along with SPAD index, plant growth and Fe content. The results showed that the overall assessment of Fe-deficiency root responses improved the evaluation of the efficacy of the Fe-foliar treatments compared to just monitoring SPAD indexes. Thus, FCR activity and expression of Fe-deficiency response genes, especially CsFRO1 and CsHA1, preceded the trend of SPAD index and acted as indicators of whether the plant was sensing or not metabolically active Fe due to the treatments. Principal component analysis of the data also provided a graphical tool to evaluate the evolution of plant responses to foliar Fe treatments with time.This study has been supported by funds from the Government of Navarra, CDTI from the Spanish Government, and Roullier Group.Frontiers MediaCiencias del Medio NaturalNatura Ingurunearen ZientziakGobierno de Navarra / Nafarroako Gobernua2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/38727reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglés© 2018 Fuentes, Bacaicoa, Rivero, Zamarreño and García-Mina. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/387272026-06-17T12:41:47Z |
| dc.title.none.fl_str_mv |
Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation |
| title |
Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation |
| spellingShingle |
Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation Fuentes, Marta Fe plant nutrition Fe deficiency Foliar Fe fertilization Fe chelates Fe(III)-chelate reductase Fe (II) transporter PM H+-ATPase Chlorosis |
| title_short |
Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation |
| title_full |
Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation |
| title_fullStr |
Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation |
| title_full_unstemmed |
Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation |
| title_sort |
Complementary evaluation of iron deficiency root responses to assess the effectiveness of different iron foliar applications for chlorosis remediation |
| dc.creator.none.fl_str_mv |
Fuentes, Marta Bacaicoa, Eva Rivero Marcos, Mikel Zamarreño, Ángel M. García-Mina, José María |
| author |
Fuentes, Marta |
| author_facet |
Fuentes, Marta Bacaicoa, Eva Rivero Marcos, Mikel Zamarreño, Ángel M. García-Mina, José María |
| author_role |
author |
| author2 |
Bacaicoa, Eva Rivero Marcos, Mikel Zamarreño, Ángel M. García-Mina, José María |
| author2_role |
author author author author |
| dc.contributor.none.fl_str_mv |
Ciencias del Medio Natural Natura Ingurunearen Zientziak Gobierno de Navarra / Nafarroako Gobernua |
| dc.subject.none.fl_str_mv |
Fe plant nutrition Fe deficiency Foliar Fe fertilization Fe chelates Fe(III)-chelate reductase Fe (II) transporter PM H+-ATPase Chlorosis |
| topic |
Fe plant nutrition Fe deficiency Foliar Fe fertilization Fe chelates Fe(III)-chelate reductase Fe (II) transporter PM H+-ATPase Chlorosis |
| description |
Iron deficiency in plants is caused by a low availability of iron in the soil, and its main visual symptom is leaf yellowing due to a decrease in chlorophyll content, along with a reduction in plant growth and fruit quality. Foliar sprays with Fe compounds are an economic alternative to the treatment with expensive synthetic Fe-chelates applied to the soil, although the efficacy of foliar treatments is rather limited. Generally, plant response to Fe-foliar treatments is monitored by measuring chlorophyll content (or related parameters as SPAD index). However, different studies have shown that foliar Fe sprays cause a local regreening and that translocation of the applied Fe within the plant is quite low. In this context, the aim of this study was to assess the effects of foliar applications of different Fe compounds [FeSO4, Fe(III)-EDTA, and Fe(III)-heptagluconate] on Fe-deficient cucumber plants, by studying the main physiological plant root responses to Fe deficiency [root Fe(III) chelate reductase (FCR) activity; acidification of the nutrient solution; and expression of the Fe deficiency responsive genes encoding FCR, CsFRO1, Fe(II) root transporter CsIRT1, and two plasma membrane H+-ATPases, CsHA1 and CsHA2], along with SPAD index, plant growth and Fe content. The results showed that the overall assessment of Fe-deficiency root responses improved the evaluation of the efficacy of the Fe-foliar treatments compared to just monitoring SPAD indexes. Thus, FCR activity and expression of Fe-deficiency response genes, especially CsFRO1 and CsHA1, preceded the trend of SPAD index and acted as indicators of whether the plant was sensing or not metabolically active Fe due to the treatments. Principal component analysis of the data also provided a graphical tool to evaluate the evolution of plant responses to foliar Fe treatments with time. |
| publishDate |
2018 |
| dc.date.none.fl_str_mv |
2018 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://hdl.handle.net/2454/38727 |
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https://hdl.handle.net/2454/38727 |
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Inglés |
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Inglés |
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https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0/ |
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openAccess |
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application/pdf |
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Frontiers Media |
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Frontiers Media |
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reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra instname:Universidad Pública de Navarra |
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Universidad Pública de Navarra |
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Academica-e. Repositorio Institucional de la Universidad Pública de Navarra |
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Academica-e. Repositorio Institucional de la Universidad Pública de Navarra |
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