CHROMOSOME BREAKAGE PRODUCED BY TRITIUM-LABELED THYMIDINE IN TRADESCANTIA PALUDOSA
نویسندگان
چکیده
منابع مشابه
Induction of Chromosome Breakage at Meiosis by a Magnesium Deficiency in Tradescantia.
designated C115 and C117, are inherited as gene differences. C115 and mi-3 both have an excess of cytochrome c but not as great as in poky and both, like poky, are deficient in cytochrome a. The content of cytochrome b is normal in mi-3 and low in C15 but not as low as in poky. Cytochromes a and c have not been detected in C117 but there is an excess of cytochrome b. The three strains grow more...
متن کاملIncorporation of C14-labeled Maleic Hydrazide into the Root-tip Cells of Allium Cernuum, Vicia Faba, and Tradescantia Paludosa
Allium cernuum, Vicia faba, and Tradescantia paludosa were treated by root immersion in maleic hydrazide (1 mM/liter) labeled with C(14) (C(14)-MH) for 1 hour to determine the location within the cell to which MH moves during various periods of time after treatment. Root tips were fixed 24 hours, 48 hours, 72 hours, and 3 weeks after treatment. Autoradiographs of root tips squashed 24 to 72 hou...
متن کاملProliferative Activity of the Lymphatic Tissues of Rats as Studied with Tritium-labeled Thymidine
Cytokinetic data are presented, employing quantitation of H(3)DNA in the lymphatic tissues of normal rats serially sacrificed after H(3)Tdr administration. A marked difference in the patterns of initial labeling and label loss was observed between the thymus and peripheral lymphatic tissue. The data are compatible with other indications of rapid cell renewal in the thymus. There is suppression ...
متن کاملIncorporation of Tritium-labeled Thymidine and Lysine into Chromosomes of Cultured Human Leukocytes
The incorporation of thymidine-H(3) and lysine-H(3) into human leukocyte chromosomes was studied in order to determine the temporal relationships between the syntheses of chromosomal deoxyribonucleic acid and chromosomal protein. The labeled compounds were incorporated into nuclei of interphase cells. Label from both precursors became apparent over the chromosomes of dividing cells. Incorporati...
متن کاملChromosome Behavior and Nuclear Development in Tradescantia.
COMPARISON of microsporogenesis and microspore development A in a triploid Tradescantia has shown significant deviations from the normal diploid behavior. Occasional dicentric chromatids a t meiosis are found in diploid Tradescantias, but inversion crossovers in the triploid are much more frequent. An analysis of microspore development in a triploid Tradescantia shows that chromosome number has...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1959
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.45.6.839