Andreas Nikolaus Jacobi

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Powdery mildew (PM), caused by Blumeria graminis f. sp. tritici (Bgt), has become a serious disease and caused severe yield losses in the wheat production worldwide. Resistance gene(s) in wheat cultivars can be quickly overcome by newly evolved pathogen races when these genes are employed for long time or in a large area. It is urgent to search for new(More)
The complex structure of the multigene family at the Mla locus conferring powdery mildew resistance in barley was studied by making diallel crosses between several near-isogenic lines carrying different Mla alleles. The mode of inheritance of the Mla alleles investigated was determined to be dominant for Mla1, Mla6, Mla7 and Mla13 and semidominant for Mla3,(More)
DIETRICH WERNER, BETTINA AHLBORN, HANI ANTOUN*, SIMONE BERNARD, CHRISTINA BOLANOS, JAMES E. COOPER**, ELISABETH GÖRGE, ANDREAS JACOBI, PAPADOPOULOU KALLIOPI***, RÜDIGER KAPE, PANAGIOTIS KATINAKIS***, KERSTIN KOSCH, PETER MÜLLER, MARTIN PARNISKE, PETRA SCHMIDT, WOLFGANG STREIT and ASTRID WETZEL Fachbereich Biologie, Philipps-Universität,(More)
a Fachbereich Biologie, Botanisches Institut der Philipps-Universität, Karl-von-Frisch-Straße, D-35032 Marburg/Lahn, Bundesrepublik Deutschland b Max-Planck-Institut für Züchtungsforschung, Carl-von Linne-Weg 10, D-50829 Köln, Bundesrepublik Deutschland Z. Naturforsch. 49c, 727-736 (1994); received August 3, 1994 Bradyrhizobium, Exopolysaccharides,(More)
Binding of tritiated indole-3-acetic acid ([3H]IAA) to symbiosome membranes of soybean nodules occurred in a protein-dependent manner and was competitively inhibited by unlabeled indole-3-acetic acid (IAA), 1-naphthaleneacetic acid (1-NAA) and dithiothreitol (DTT), but not by tryptophan and benzoic acid. The symbiosome membranes bound IAA with a ATD of 1 x(More)
Original Communications ß-Carboline Alkaloids from Ribes nigrum L. The deletion mutant Bradyrhizobium japonicum AP22 produces a structurally altered exo-polysaccharide. The nodulation of two cultivars each of Glycine max and Glycine soja, and cultivars of Macroptilium atropurpureum and Vigna radiata, infected with this mutant was examined in order to(More)
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