Results 281 to 290 of about 3,934,486 (340)

The Structure of Chloroplast DNA

Annual Review of Plant Physiology, 1979
INTRODUCTION . PHYSICAL STUDIES ON THE STRUCTURE OF ctDNA . Kinetic Comple;city of ctDNA . Circularity of ctDNA .
J R Bedbrook, R Kolodner
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The DNA of Chloroplasts, Mitochondria, and Centrioles

1967
Publisher Summary The chapter discusses the evidence for the following conclusions: (1) the cytoplasmic organelles that contain small amounts of deoxyribonucleic acid (DNA); (2) each type of organelle contains its own characteristic DNA; (3) the DNA of the organelles is double-stranded and replicates in a semiconservative fashion; (4) the DNA codes ...
S, Granick, A, Gibor
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DNA Synthesis in Chloroplasts

Journal of Experimental Botany, 1989
The influence of two DNA gyrase inhibitors, nalidixic acid and novobiocin on DNA synthesis in isolated pea chloroplasts was examined by autoradiography and ...
W. RONALD MILLS, MICHELE REEVES, DIANA L. FOWLER, STEPHEN F. CAPO   +3 more
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Isolation of Maize Chloroplasts and Chloroplast DNA

1994
This procedure is for the isolation of chloroplasts and highly purified chloroplast DNA from 1 kg of maize seedling leaves. Because starch reduces the yield of intact chloroplasts, light-grown seedlings are placed into darkness for 1–2 days prior to DNA isolation. All manipulations should be performed at 4°C, unless otherwise noted.
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Chloroplast ribosomal RNA genes in the chloroplast DNA of Euglena gracilis

Journal of Molecular Biology, 1973
Euglena chloroplast DNA has a buoyant density in CsCI of 1.686. Shearing this DNA produces a satellite band at density 1.700. The satellite, easily lost during preparative CsCI gradient centrifugation of chloroplast DNA, contains the genes for chloroplast ribosomal RNA. Pure Euglena chloroplast DNA is shown to contain one set of ribosomal RNA genes for
J R, Rawson, R, Haselkorn
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The characteristics of spinach chloroplast DNA polymerase

Archives of Biochemistry and Biophysics, 1969
Purified chloroplast preparations from spinach incorporate [3H]-dTTP1 into an acid-insoluble product. The incorporation reaction is highly dependent on all four deoxynucleoside triphosphates, Mg2+ and a sulphydryl reagent, and is further stimulated by KCl.
D, Spencer, P R, Whitfeld
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Chloroplast DNA from three archegoniates

Planta, 1980
1. DNA from female and male Sphaerocarpos donnellii (liverwort) plants exhibits at least two species with buoyant densities of 1.703 (main band) and 1.691 (satellite) g cm(-3) in CsCl equilibrium gradients. At least part, if not all, of the satellite DNA is localized in plastids.
R G, Herrmann, H K, Palta, K V, Kowallik
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Structure of Chloroplast DNA

1977
We had previously reported the isolation of circular chloro-plast (et) DNA molecules from pea leaves. Circular pea ctDNA was found to have a molecular weight of 90×106 with no evidence of inter- or intramolecular heterogeneity. Recently we have extensively studied the size and structure of ctDNAs from pea, bean, spinach, lettuce, corn, and oats.2 As ...
K. K. Tewari, R. Kolodner, Nathan M. Chu, Robert R. Meeker   +3 more
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The chloroplast DNA mystery

Trends in Biochemical Sciences, 1978
Twenty years after the discovery that chloroplasts contain DNA we still do not know the significance of approximately 90% of this DNA.
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Intramolecular heterogeneity of mitochondrial and chloroplastic DNA

Biochemical and Biophysical Research Communications, 1972
Summary Mitochondrial and chloroplastic DNA from unicellular and higher organisms are splitted into several bands by Cs 2 SO 4 density gradient ultracentrifugations in the presence of Ag + ions. The banding pattern includes a main band DNA, a heavy satellite DNA and, in the most cases, a light satellite DNA.
F, Vedel, F, Quetier, M, Bayen, A, Rode, J, Dalmon   +4 more
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