Abstract
Microspores isolated from Lilium longiflorum and Trillium erectum were studied with respect to their capacities for phosphorylating deoxyribosides in vitro. It was found that such capacities are manifest only during brief intervals of time adjacent to periods of DNA synthesis, and that none of the neighboring cells in the anther acquire them. The observed patterns of behavior are interpreted in terms of enzyme induction as a device for regulating DNA synthesis.
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- GREEN M., COHEN S. S. Studies on the biosynthesis of bacterial and viral pyrimidines. II. Dihydrouracil and dihydrothymine nucleosides. J Biol Chem. 1957 Mar;225(1):397–407. [PubMed] [Google Scholar]
- HOTTA Y., STERN H. Deamination of deoxycytidine and 5-methyldeoxycytidine in developing anthers of Lilium longiflorum (var. Croft). J Biophys Biochem Cytol. 1961 Feb;9:279–284. doi: 10.1083/jcb.9.2.279. [DOI] [PMC free article] [PubMed] [Google Scholar]
- KREBS H. A., HEMS R. Some reactions of adenosine and inosine phosphates in animal tissues. Biochim Biophys Acta. 1953 Sep-Oct;12(1-2):172–180. doi: 10.1016/0006-3002(53)90136-x. [DOI] [PubMed] [Google Scholar]
- LIMA-DE-FARIA A. Differential uptake of tritiated thymidine into hetero- and euchromatin in Melanoplus and Secale. J Biophys Biochem Cytol. 1959 Dec;6:457–466. doi: 10.1083/jcb.6.3.457. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MAALOE O., HANAWALT P. C. Thymine deficiency and the normal DNA replication cycle. I. J Mol Biol. 1961 Apr;3:144–155. doi: 10.1016/s0022-2836(61)80041-7. [DOI] [PubMed] [Google Scholar]
- ROUSH A. H., BETZ R. F. Purification and properties of trans-N-deoxyribosylase. J Biol Chem. 1958 Aug;233(2):261–266. [PubMed] [Google Scholar]
- TAYLOR J. H. Asynchronous duplication of chromosomes in cultured cells of Chinese hamster. J Biophys Biochem Cytol. 1960 Jun;7:455–464. doi: 10.1083/jcb.7.3.455. [DOI] [PMC free article] [PubMed] [Google Scholar]