Abstract
Exposure of Chinese cabbage (Brassica pekinensis) to an enhanced Cu2+ level (4 μM) resulted in a reduced plant biomass production and an increased shoot to root ratio at both sulfate-sufficient and sulfate-deprived conditions. However, sulfate deprivation had a more rapid negative effect on plant biomass production than an enhanced Cu2+ level, The expression and activity of the sulfate transporters and the expression of APS reductase in Chinese cabbage were rapidly up-regulated (already after 1 or 2 days) upon exposure to 4 μM Cu2+, sulfate deprivation and their combination. Though the impact of sulfate deprivation on the expression and activity of the sulfate transporters was hardly further affected by Cu2+.
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Acknowledgements
M. Shahbaz received a Ph.D. grant from the HEC-NUFFIC program by the Government of Pakistan.
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© 2012 Springer Science+Business Media Dordrecht
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Shahbaz, M., Stuiver, C.E.E., Posthumus, F.S., De Kok, L.J. (2012). Impact of Enhanced Copper Levels and Sulfate Deprivation on the Uptake and Metabolism of Sulfate in Chinese Cabbage (Brassica pekinensis). In: De Kok, L., et al. Sulfur Metabolism in Plants. Proceedings of the International Plant Sulfur Workshop, vol 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-4450-9_23
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DOI: https://doi.org/10.1007/978-94-007-4450-9_23
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