Paffenholz, Volker Scholtissek, Christoph
Published in
Zeitschrift für Naturforschung C
While the enzyme template complex of fowl plague virus (FPV) polymerase is rather stable during incubation in vitro, some of the newly synthesized RNA is degraded rapidly. At low temperatures a pronounced lag phase of RNA synthesis occurs, which can be prevented by incubation with substrate. The in vitro products are initially single-stranded RNA, ...
Hiller, G. Frank, W.
Published in
Zeitschrift für Naturforschung C
Lecou, Christian Arends, Sigrid Liautard, Jean-Pierre Köhler, Kurt
Published in
Zeitschrift für Naturforschung C
The cytoplasm of growing HeLa cells contains a certain quantity of native ribosomal subunits. They constitute a heterogeneous fraction consisting of at least two categories of particles. The first category comprises the newly emerging native 40S subunits which do not form 80S couples under any in vitro condition tried. It is postulated that these n...
Watts, J. W. King, Janet M.
Published in
Zeitschrift für Naturforschung C
Beiderbeck, Rolf
Published in
Zeitschrift für Naturforschung C
Bacterial cell walls are concerned with the tumor induction by Agrobacterium tumefaciens on leaves of Kalanchoe in two different ways: 1. If an inoculum of the virulent strain B6 of A. tumefaciens is mixed with cells of the avirulent strain IIBNV6 or with high concentrations of cell wall preparations from B6 itself tumor induction is inhibited. The...
Stieve, H. Malinowska, T.
Published in
Zeitschrift für Naturforschung C
The effect of three drugs on the receptor potential (ReP) of the crayfish retina measured with external electrodes was tested. 1. Tetrodotoxin (TTX) (1·10-6 g/ml and 1·10-5 g/ml) showed only slight effects on the receptor potential (Table I and II). 2. Veratridine (VERA) (1·10-5 g/ml) showed only small effects of the same type as TTX but a little s...
Heise, Klaus-Peter Jacobi, Günter
Published in
Zeitschrift für Naturforschung C
Purified isolated spinach chloroplasts were suspended in media of different pH and the extracts obtained after centrifugation were analyzed for their lipid composition. The quantity of lipids present in the supernatant increased considerably by lowering the proton concentration. Under alkaline conditions more than 30% of the phospho- and sulfolipid...
Becker, W.
Published in
Zeitschrift für Naturforschung C
A method is described of mixing solutions in a cartesian submicroliter-diver with a gas volume of about 0.2 μl. The solutions are mixed within about 10 sec. Approximately 1-2 min after interruption of the experiments the readings are resumed.
Friedrich-Freksa, H. Simon, A. Pachowsky, H.
Published in
Zeitschrift für Naturforschung C
ATP-cleavage on the surface of L-5222 leukaemic cells of the BD IX-rat occurs at a rate of only 20% of the corresponding value for normal leucocytes.
Brody, Seymour S.
Published in
Zeitschrift für Naturforschung C
Monomolecular films of 9-cis, 11-cis, 13-cis and all-trans retinal were formed at an air-water interface. Area/molecule and surface potential were measured before, during and after illumination. The initial quantum yield of the photoisomerization of 9-cis retinal was 0.25. Irradiation of a retinal monolayer resulted in 30 to 60 mVolt changes in sur...
