منابع مشابه
A Correlated Light and Electron Microscope Study of the Nucleolar Material during Mitosis in Vicia Faba
Root meristematic cells of Vicia faba were examined, with both light and electron microscopes, in order to study the behaviour of the nucleolar material during the mitotic process. Under light microscopy, the preprophase nucleolus is seen to consist of a densely stained material in which are embedded several unstained vacuole-like structures of varying size. The electron microscope reveals that...
متن کاملAberration Frequency during Mitosis and Meiosis in Vicia Faba L., after the Treatments With
The influence of γrays on genetic variability is in direct correlation with the condition of irradiated material. Here we tried to increase the variability of Vicia faba L. var. major karyotype, after contamination with I (a kind of radioactive rain) in elongation phase in ten plant groups. The effects of irradiation were observed not only by controlling mitotic activity and calculating mitotic...
متن کاملRespiration and Geotropism in Vicia Faba. I
In this paper there are given the results of a study of the relation of respiration to temperature, in seedlings of Vicia faba, and of the onset of geotropic response. It is shown that with due care and very accurate control of temperature constancy, one can get constant excretion of CO(2) even over fairly long periods. The treatment of the experimental data shows that the Q(10) ratio is of cou...
متن کاملMitosis sans Mitosis: The Mitotic Oscillator in Differentiation.
Differentiation and proliferation are usually considered to be antagonistic partners in development. However, in a recent issue of Science, Al Jord et al. (2017) show that key regulators of the mitotic cycle are redeployed in differentiating multiciliated cells to promote ciliogenesis without mitotic progression.
متن کاملIn Vitro Biosynthesis of Vicia faba Polyphenoloxidase.
Poly A(+) mRNA was isolated from Vicia faba leaves and translated in vitro using a rabbit reticulocyte translation system. From analysis of the total translation products, the major proteins synthesized in vitro were 32 kilodaltons and 20 kilodaltons. When antibodies to Vicia faba polyphenoloxidase were added, a specific immunoprecipitable protein was observed. This protein's molecular weight w...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1914
ISSN: 0006-8071
DOI: 10.1086/331418