2003
DOI: 10.1081/pln-120024268
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Does the Sulfur Assimilation Pathway Play a Role in the Response to Fe Deficiency in Maize (Zea mays L.) Plants?

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Cited by 48 publications
(42 citation statements)
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“…In particular, we observed (Astolfi et al 2003) that Fe deprivation increased the levels of thiol compounds in maize leaves with a concomitant decrease in the activities of enzymes involved in S metabolism, like ATPsulphurylase and OASsulphydrylase. Graminaceous monocots (Strategy II plants) release chelating compounds, phytosiderophores, in response to Fe deficiency.…”
mentioning
confidence: 83%
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“…In particular, we observed (Astolfi et al 2003) that Fe deprivation increased the levels of thiol compounds in maize leaves with a concomitant decrease in the activities of enzymes involved in S metabolism, like ATPsulphurylase and OASsulphydrylase. Graminaceous monocots (Strategy II plants) release chelating compounds, phytosiderophores, in response to Fe deficiency.…”
mentioning
confidence: 83%
“…-_... Our previous work (Astolfi et al 2003) provided indication on a possible interaction between S and Fe nutrition in maize leaves. In particular, we observed that imposed Fe deprivation caused an increase in the level of thiol compounds; moreover, an appreciable decrease of both ATPs and OASs was demonstrated as a consequence of Fe deprivation, indicating that S metabolism was sensitive to Fe availability.…”
Section: Discussionmentioning
confidence: 99%
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“…Astolfi et al (2003) grew maize plants with pretreatments of either -S or +S (in the form of sulfate) and transfelTed half of each treatment to either Fe-deficient or Fe-sufficient solutions. Leaf Fe concentration was lower in the leaves of plants grown in S-deficiency than in those grown in sufficient S. Also, plants grown in Fe-deficient solution accumulated more sulfhydryl (SH) containing compounds in the -S and + S conditions than their respective counterparts in the Fe-sufficient solution, suggesting a potential for lower production of phytosiderophore in S-stressed plants, and leading to increased Fe chlorosis.…”
Section: Sulfurmentioning
confidence: 99%