The role of copper in nitrogen fixation in Lupinus luteus L. |
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| Authors: | Seliga Henryka |
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| Institution: | (1) Department of Plant Nutrition Physiology, Institute of Soil Science and Cultivation of Plants, Osada Palacowa, 24-100 Pulawy, Poland |
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| Abstract: | The effect of copper nutrition on symbiotic N2 fixation in Lupinus luteus L. was studied. Copper nutrition increased the yield, total nitrogen content and dry weight of nodules. The control plants did not produce pods. Copper deficiency limited iron uptake and its translocation to the nodules. Nodules of copper-deficient plants contained less than half the leghaemoglobin concentration of copper-adequate plants and about one third the polyphenol oxidase activity, tested with catechol as a substrate. |
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| Keywords: | copper nutrition iron leghaemoglobin Lupinus luteus L nitrogen fixation polyphenol oxidase activity |
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