biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 48:141-144, 2004 | DOI: 10.1023/B:BIOP.0000024292.51938.aa

Iron Chlorosis in Grafted Sweet Orange (Citrus sinensis L.) Plants: Physiological and Biochemical Responses

V. Chouliaras1, I. Therios1,*, A. Molassiotis1, G. Diamantidis2
1 Department of Agriculture, Laboratory of Pomology, Aristotle University of Thessaloniki, Thessaloniki, Greece
2 Department of Agriculture, Laboratory of Agricultural Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece

Fe deficiency was imposed in Citrus sinensis L. cultivars Valencia and New Hall grafted on C. aurantium and Swingle citrumelo rootstocks by the absence of Fe (-Fe) or by the presence of bicarbonate in the Hoagland nutrient solution. In Fe-deprived leaves total and active Fe concentration, and peroxidase and catalase activities were decreased while the ratios carotenoids/chlorophylls, P/Fe, and K/Ca were increased. Fe(III) chelate reductase activity was induced in (-Fe)-treated roots whereas it was depressed in bicarbonate-treated roots.

Keywords: carotenoids; catalase; chlorophylls; Fe(III) chelate reductase; peroxidase
Subjects: carotenoids, iron deficiency; catalase; chelate reductase; chlorophyll, iron deficiency; Citrus aurantium; Citrus sinensis; Fe(III) chelate reductase; grafting; iron chlorosis, photosynthetic pigments, enzymes; nutrient medium, Hoagland and Arnon; peroxidase; rootstock, sweet orange; sweet orange, rootstocks; Swingle citrumelo

Published: March 1, 2004  Show citation

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Chouliaras, V., Therios, I., Molassiotis, A., & Diamantidis, G. (2004). Iron Chlorosis in Grafted Sweet Orange (Citrus sinensis L.) Plants: Physiological and Biochemical Responses. Biologia plantarum, 48(1), 141-144. doi: 10.1023/B:BIOP.0000024292.51938.aa
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