Two-dimensional electrophoresis patterns of total proteins, esterases and acid phosphatases from pollen, seeds and leaves of three cultivars of Helianthus annuus L.
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Total proteins, esterases and acid phosphatases from pollen, seeds and leaves of three sunflower cultivars were separated by 2-D electrophoresis. The characteristic peptides for each cultivar were identified. The seeds and pollen of the cultivar Wielkopolski contained 45 and 37 characteristic peptides, respectively, while the seeds and pollen of Coril contained 73 and 35 characteristic peptides. The cultivar Frankasol had the lowest total number of stained peptides in seeds and pollen, and the number of the characteristic peptides was only 61 and 25, respectively. Analyses of esterases and acid phosphatases from young leaves and pollen led to identification of isoenzymes characteristic of the three cultivars. Only for Frankasol no specific acid phosphatase was observed, both in leaves and in pollen.
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A. Kalinowski, Institute of Plant Genetics, Polish Academy of Sciences, ul. Strzeszynska 34, 60-479 Poznan, Poland