Biochemical changes in sugar beet lines in dependence on soil moisture |
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| Authors: | S. Kevrešan B. Krstić M. Popović L. Kovačev S. Pajević J. Kandrač đ. Malenčić |
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| Affiliation: | (1) Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21000 Novi Sad, Yugoslavia;(2) Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 8, 21000 Novi Sad, Yugoslavia;(3) Institute of Field and Vegetable Crops, Maksima Gorkog 30, 21000 Novi Sad, Yugoslavia |
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| Abstract: | Nine sugar beet lines were grown in a glasshouse on chernozem soil watered to 35, 50 and 65 % of maximal soil water capacity. After 12 d, plant water potential, net photosynthetic rate, contents of soluble proteins, DNA and RNA, proportion of ribulose-1,5-bisphosphate carboxylase/oxygenase (RUBISCO) protein, and carbonic anhydrase activity were measured. As soil moisture decreased, the leaf water potential and net photosynthetic rate decreased. DNA and RNA content and carbonic anhydrase activity decreased under moderate drought, and increased with severe drought. RUBISCO protein proportion did not change significantly under decreased soil moisture, while the total soluble protein content decreased. This revised version was published online in July 2006 with corrections to the Cover Date. |
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| Keywords: | Beta vulgaris L. drought DNA and RNA content carbonic anhydrase activity RUBISCO soluble protein content |
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