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Kiferle C, Martinelli M, Salzano AM, Gonzali S, Beltrami S, Salvadori PA, Hora K, Holwerda HT, Scaloni A, Perata P. Evidences for a Nutritional Role of Iodine in Plants. FRONTIERS IN PLANT SCIENCE 2021; 12:616868. [PMID: 33679830 PMCID: PMC7925997 DOI: 10.3389/fpls.2021.616868] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/04/2021] [Indexed: 05/12/2023]
Abstract
Little is known about the role of iodine in plant physiology. We evaluated the impact of low concentrations of iodine on the phenotype, transcriptome and proteome of Arabidopsis thaliana. Our experiments showed that removal of iodine from the nutrition solution compromises plant growth, and restoring it in micromolar concentrations is beneficial for biomass accumulation and leads to early flowering. In addition, iodine treatments specifically regulate the expression of several genes, mostly involved in the plant defence response, suggesting that iodine may protect against both biotic and abiotic stress. Finally, we demonstrated iodine organification in proteins. Our bioinformatic analysis of proteomic data revealed that iodinated proteins identified in the shoots are mainly associated with the chloroplast and are functionally involved in photosynthetic processes, whereas those in the roots mostly belong and/or are related to the action of various peroxidases. These results suggest the functional involvement of iodine in plant nutrition.
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Affiliation(s)
- Claudia Kiferle
- Plant Lab, Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy
| | - Marco Martinelli
- Plant Lab, Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy
| | - Anna Maria Salzano
- Proteomics and Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment (ISPAAM), National Research Council, Napoli, Italy
| | - Silvia Gonzali
- Plant Lab, Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy
| | - Sara Beltrami
- Plant Lab, Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy
| | | | - Katja Hora
- SQM International N.V., Antwerpen, Belgium
| | | | - Andrea Scaloni
- Proteomics and Mass Spectrometry Laboratory, Institute for the Animal Production System in the Mediterranean Environment (ISPAAM), National Research Council, Napoli, Italy
| | - Pierdomenico Perata
- Plant Lab, Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy
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Triton X-114 phase-fractionation of maize thylakoid membranes in the investigation of thylakoid protein topology. FEBS Lett 2001. [DOI: 10.1016/0014-5793(82)81100-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Machold O. Translational sites of thylakoid membrane proteins. Studies based on selective inhibition of cytoplasmic and chloroplast ribosomes by cycloheximide and chloramphenicol. ACTA ACUST UNITED AC 1983. [DOI: 10.1016/0167-4781(83)90121-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Topology and Association of the Subunits of Chloroplast and Etioplast ATPase Complex (CF1—CF0). A Lactoperoxidase-catalyzed Iodination and Limited Proteolysis Study. ACTA ACUST UNITED AC 1982. [DOI: 10.1016/s0015-3796(82)80018-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Machold O. Chlorophylla/b-Proteins and Light-Harvesting Complex of Vicia faba and Hordeum vulgare). ACTA ACUST UNITED AC 1981. [DOI: 10.1016/s0015-3796(81)80065-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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