Claus Gebhardt

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In plants, glutamine synthetase (GS) is the enzyme primarily responsible for the assimilation of ammonia into organic nitrogen. In Phaseolus vulgaris a number of isoenzymic forms of GS are found, each of which consists of eight subunits of mol. wt 41 000-45 000. The GS subunits of P. vulgaris have previously been shown to be encoded by a small multigene(More)
A recombinant plasmid (pcPvNGS-01) containing sequences related to glutamine synthetase (GS) has been identified from a cDNA library constructed from poly (A)+ RNA isolated from root nodules of Phaseolus vulgaris L. The identification of this recombinant relied on the observations that: (a) the clone hybridized strongly to purified GS mRNA; (b) in(More)
Epistatic interactions among loci are expected to contribute substantially to variation of quantitative traits. The objectives of our research were to (i) compare a classical mixed-model approach with a combined mixed-model and analysis of variance approach for detecting epistatic interactions; (ii) examine using computer simulations the statistical power(More)
Malignant transformation of mouse skin by chemical carcinogens and tumor promoters, such as the phorbol ester 12-O-tetradecanoylphorbol-13-acetate, is a multistage process leading to the formation of squamous cell carcinomas. In an effort to identify target genes whose expression is associated with skin tumorigenesis we combined elements of suppression(More)
The cleavage sites of the restriction nucleases HpaI, HpaII, HindII, HindIII, and PstI have been mapped on the DNA of the bacteriophage PM2. This map has been used for the localization of two strong binding sites of Escherichia coli RNA polymerase on PM2 DNA.
Remote sensing Synthetic Aperture Radar (SAR) data from TerraSAR-X and Tandem-X (TS-X and TD-X) satellites have been used for validation and verification of newly developed coastal forecast models in the German Bight of the North Sea. The empirical XWAVE algorithm for estimation of significant wave height from X-band satellite data has been adopted for(More)
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