Physiologische Untersuchungen zur Reifeteilung. II. Mitteilung. Über die Änderung des Nukleinsäurengehaltes während der Pollenmeiose und Pollenentwicklung von Lilium Henryi

The examination of the nucleic acids in the contents of the anthers (microsporocytes and tapetum) has shown, that the onset of the prophase I and the beginning of the crumbling of the tapetum-cells a decrease in the amount of DNA takes place from 1,1 % of the dry weight to ca. 0,5 %. In the interphase I the amount of DNA returns to the original level. At the time of the depression the appearance of nucleic acid-components in the contents of the anthers can be shown by paper-chromatography. It is assumed, that a transfer of DNA takes place from the tapetum to the microsporocytes by means of the DNA-components.