Abstract
Plant leaves accumulate Mn from soil by transporters in root plasma membranes, xylem systems, and subcellular membranes in mesophyll cells. Questions remain concerning how Mn is transferred to its major functioning site, i.e. the chloroplast lumen, and how Mn uptake is controlled. Genetic analysis of Mn-deficient mutants would help answer most of these questions. In this study four mutants have been found in genes of Arabidopsis thaliana. These mutants were selected for by appearance of characteristic Mn-deficiency symptoms on a hydroponic culture that contained 14 μM Mn2+. Mn content of the mutants was lowered by 1/3 – 1/4 in rosette leaves, 1/4 in caules, and 1/2 – 1/3 in siliques as compared to the wild type indicating that the mutations impaired Mn accumulation in whole plant cells.
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References
Campbell L C and Nable R O 1988 In Manganese in Soils and Plants. Eds. R D Graham, R J Hannan and N C Uren. pp 139–154. Kluwar Academic, Dordrecht.
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© 1997 Kluwer Academic Publishers
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Ohtani, K., Kitano, T., Amako, K., Takahashi, M. (1997). Hydroponic culture of Arabidopsis thaliana to screen mutants defective in the absorption of manganese. In: Ando, T., Fujita, K., Mae, T., Matsumoto, H., Mori, S., Sekiya, J. (eds) Plant Nutrition for Sustainable Food Production and Environment. Developments in Plant and Soil Sciences, vol 78. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0047-9_59
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DOI: https://doi.org/10.1007/978-94-009-0047-9_59
Publisher Name: Springer, Dordrecht
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