Changes in phosphoenolpyruvate carboxylase and ribulosebisphosphate carboxylase activities in tobacco plants infected with tobacco mosaic virus |
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| Authors: | Olga Makovcová L. Šindelář |
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| Affiliation: | 1. Institute of Experimental Botany of the Czechoslovak Academy of Sciences, Na Karlovce 1, 160 00, Praha 6, Czechoslovakia
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| Abstract: | Considerable changes in the activities of phosphoenolpyruvate carboxylase and ribulosebisphosphate carboxylase were found inNicotiana tabacum cv. Sarasun plants infected with TMV. Ribulosebisphosphate carboxylase is inhibited at the time of maximum TMV reproduction, but its decreased activity is at the same time partly compensated by phosphoenol-pyruvate carboxylase in the shoots of infected plants. The pattern of activity of this enzyme nearly exactly reflects the pattern of reproduction of the tobacco mosaic virus. |
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