Response of soybean plants to the application of synthetic and biodegradable Fe chelates and Fe complexes

Clara Martín-Fernández, Ádám Solti, Viktória Czech, Krisztina Kovács, F. Fodor, Agustín Gárate, Lourdes Hernández-Apaolaza, Juan J. Lucena

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The growing concern over the environmental risk of synthetic chelate application promotes the search for alternatives in Fe fertilization, such as biodegradable chelating agents and natural complexing agents. In this work, plant responses to the application of several Fe treatments (chelates and complexes) was analyzed to study their potential use in Fe fertilization under calcareous conditions. Thus, the root ferric chelate reductase (FCR) activity of soybean (Glycine max cv. Klaxon) plants was determined, and the effectiveness of the Fe chelates and complexes assessed in a pot experiment, by SPAD and fluorescence induction measurements, and the determination of Fe distribution in plant and soil. Additionally, 57Fe Mössbauer spectroscopy was conducted to identify the Fe forms present in the soybean roots. The highest FCR activity was observed for the chelates EDDS/Fe3+ and IDHA/Fe3+; while no activity was observed when using complexes as Fe substrates. In contrast to the FCR data, the pot experiment confirmed that the o,oEDDHA/Fe3+ is the most effective treatment, and the complexes LS/Fe3+ and GA/Fe3+ are able to alleviate Fe chlorosis, also indicated by SPAD data and the maximal quantum efficiency of photosystem II reaction centers as vitality parameters, and the enhanced plant uptake of Fe from natural sources.

Original languageEnglish
Pages (from-to)579-588
Number of pages10
JournalPlant Physiology and Biochemistry
Volume118
DOIs
Publication statusPublished - Sep 1 2017

Fingerprint

biodegradability
chelates
Soybeans
soybeans
Fertilization
Plant Dispersal
Hypochromic Anemia
Photosystem II Protein Complex
Chelating Agents
Spectrum Analysis
Soil
Fluorescence
chlorosis
chelating agents
ferric citrate iron reductase
photosystem II
plant response
Glycine max
spectroscopy
fluorescence

Keywords

  • Fe
  • Calcareous soil
  • Fluorescence
  • Root FCR activity
  • SPAD

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science

Cite this

Response of soybean plants to the application of synthetic and biodegradable Fe chelates and Fe complexes. / Martín-Fernández, Clara; Solti, Ádám; Czech, Viktória; Kovács, Krisztina; Fodor, F.; Gárate, Agustín; Hernández-Apaolaza, Lourdes; Lucena, Juan J.

In: Plant Physiology and Biochemistry, Vol. 118, 01.09.2017, p. 579-588.

Research output: Contribution to journalArticle

Martín-Fernández, C, Solti, Á, Czech, V, Kovács, K, Fodor, F, Gárate, A, Hernández-Apaolaza, L & Lucena, JJ 2017, 'Response of soybean plants to the application of synthetic and biodegradable Fe chelates and Fe complexes', Plant Physiology and Biochemistry, vol. 118, pp. 579-588. https://doi.org/10.1016/j.plaphy.2017.07.028
Martín-Fernández, Clara ; Solti, Ádám ; Czech, Viktória ; Kovács, Krisztina ; Fodor, F. ; Gárate, Agustín ; Hernández-Apaolaza, Lourdes ; Lucena, Juan J. / Response of soybean plants to the application of synthetic and biodegradable Fe chelates and Fe complexes. In: Plant Physiology and Biochemistry. 2017 ; Vol. 118. pp. 579-588.
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