Light Stabilizers

Current trends in the light stabilization of polymers and coatings are summarized, with emphasis on UV absorbers and free-radical scavengers

Renward Brandstetter

Steinmann Alfred. Renward Brandstetter. In: Journal de la Société des océanistes, tome 2, 1946. pp. 217-218

Renward Brandstetter

Steinmann Alfred. Renward Brandstetter. In: Journal de la Société des océanistes, tome 2, 1946. pp. 217-218

Les tissus cultuels « Tampan » du sud de Sumatra et leurs ornements

Steinmann Alfred. Les tissus cultuels « Tampan » du sud de Sumatra et leurs ornements. In: Journal de la Société des océanistes, tome 2, 1946. pp. 221-224

Xanthomonas campestris pv. campestris lpsI and lpsJ genes encoding putative proteins with sequence similarity to the alpha- and beta-subunits of 3-oxoacid CoA-transferases are involved in LPS biosynthesis

Steinmann D, Koplin R, Pühler A, Niehaus K. Xanthomonas campestris pv. campestris lpsI and lpsJ genes encoding putative proteins with sequence similarity to the alpha- and beta-subunits of 3-oxoacid CoA-transferases are involved in LPS biosynthesis. ARCHIVES OF MICROBIOLOGY. 1997;168(6):441-447.A 2.1-kb SmaI-EcoRI DNA fragment upstream of the xanA and xanB genes of Xanthomonas campestris pv. campestris carries two ORFs encoding putative proteins with sequence similarities to the alpha- and beta-subunits of 3-oxoacid-CoA transferases. The two ORFs were termed lpsI and lpsJ because strains carrying appropriate mutations showed an autoagglutination phenotype and because lipopolysaccharides of these mutant strains were altered according to silver-stained polyacrylamide gels. The monosaccharide composition of the exopolysaccharide xanthan produced by lpsI and lpsJ mutants remained unchanged

SATURATION MUTAGENESIS IN ESCHERICHIA-COLI OF A CLONED XANTHOMONAS-CAMPESTRIS DNA FRAGMENT WITH THE LUX TRANSPOSON TN4431 USING THE DELIVERY PLASMID PDS1, THERMOSENSITIVE IN REPLICATION

STEINMANN D, WIGGERICH HG, KLAUKE B, SCHRAMM U, Pühler A, PRIEFER UB. SATURATION MUTAGENESIS IN ESCHERICHIA-COLI OF A CLONED XANTHOMONAS-CAMPESTRIS DNA FRAGMENT WITH THE LUX TRANSPOSON TN4431 USING THE DELIVERY PLASMID PDS1, THERMOSENSITIVE IN REPLICATION. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY. 1993;40(2-3):356-360.A system allowing transposon mutagenesis of cloned DNA fragments in Escherichia coil with Tn4431, which carries the promotorless luciferase (lux) operon of Vibrio fischeri, has been developed. The transposon delivery plasmid, pDS1, based on an IncF replicon, is thermosensitive in replication and mobilizable to many Gram-negative bacteria. We used pDS1 for Tn4431-saturation mutagenesis of a 10-kb DNA fragment of Xanthomonas campestris pv. campestris (X.c.c.) in E. coli and showed that the expression of the lux operon was dependent on orientation and location of the transposon. Transfer of a specific Tn4431 insertion to X.c.c. allowed the determination of the bioluminescence phenotype in planta