Please use this identifier to cite or link to this item:
Title: The interplay between sulfur and iron nutrition in tomato
Authors: Zuchi, S.
Ciaffi, Mario 
Hoefgen, R.
Astolfi, Stefania 
Hubberten, H.M.
Watanabe, M.
Bromke, M.
Osorio, S.
Fernie, A. R.
Celletti, S.
Paolacci, Anna Rita
Catarcione, G.
Issue Date: 2015
Plant response mechanisms to deficiency of a single nutrient, such as sulfur (S) or iron (Fe), have been described at agronomic, physiological, biochemical, metabolomics, and transcriptomic levels. However, agroecosystems are often characterized by different scenarios, in which combined nutrient deficiencies are likely to occur. Soils are becoming depleted for S, whereas Fe, although highly abundant in the soil, is poorly available for uptake because of its insolubility in the soil matrix. To this end, earlier reports showed that a limited S availability reduces Fe uptake and that Fe deficiency results in the modulation of sulfate uptake and assimilation. However, the mechanistic basis of this interaction remains largely unknown. Metabolite profiling of tomato (Solanum lycopersicum) shoots and roots from plants exposed to Fe, S, and combined Fe and S deficiency was performed to improve the understanding of the S-Fe interaction through the identification of the main players in the considered pathways. Distinct changes were revealed under the different nutritional conditions. Furthermore, we investigated the development of the Fe deficiency response through the analysis of expression of ferric chelate reductase, iron-regulated transporter, and putative transcription factor genes and plant sulfate uptake and mobilization capacity by analyzing the expression of genes encoding sulfate transporters (STs) of groups 1, 2, and 4 (SlST1.1, SlST1.2, SlST2.1, SlST2.2, and SlST4.1). We identified a high degree of common and even synergistic response patterns as well as nutrient-specific responses. The results are discussed in the context of current models of nutrient deficiency responses in crop plants.
ISSN: 1532-2548
DOI: 10.1104/pp.15.00995
Appears in Collections:A1. Articolo in rivista

Files in This Item:
File SizeFormat
Zuchi et al 2015 Plant Physiol.pdf1.14 MBAdobe PDFView/Open
Show full item record

Citations 5

Last Week
Last month
checked on Sep 14, 2023

Page view(s)

Last Week
Last month
checked on Sep 18, 2023


checked on Sep 18, 2023

Google ScholarTM



All documents in the "Unitus Open Access" community are published as open access.
All documents in the community "Prodotti della Ricerca" are restricted access unless otherwise indicated for specific documents