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Ursula Wieneke

Researcher at Max Planck Society

Publications -  17
Citations -  1442

Ursula Wieneke is an academic researcher from Max Planck Society. The author has contributed to research in topics: Rhizobium & Gene. The author has an hindex of 15, co-authored 17 publications receiving 1408 citations.

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Rhizobium NodB protein involved in nodulation signal synthesis is a chitooligosaccharide deacetylase

TL;DR: The data show that the NodB protein of Rhizobium meliloti deacetylates the nonreducing N-acetylglucosamine residue of chitooligosaccharides, which may be a necessary requirement for attachment of the fatty acyl chain in the pathway of Nod factor synthesis.
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Modification of phytohormone response by a peptide encoded by ENOD40 of legumes and a nonlegume.

TL;DR: The gene ENOD40 is expressed during early stages of legume nodule development and appears to act as plant growth regulators, while a homolog was isolated from tobacco, which encodes an oligopeptide of about 10 amino acids.
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Organization, structure and symbiotic function of rhizobium meliloti nodulation genes determining host specificity for alfalfa

TL;DR: In R. meliloti, four nodulation genes determining plant host-range specificity and have been identified hsnABC and D, which determine plant-specific infection through root hairs: hsnD is required for host-specific root hair curling and nodule initiation while the hsn ABC genes control infection thread growth from the root hairs.

Biosynthesis of lipooligosaccharide nodulation factors: Rhizobium NodA protein is involved in N-acylation of the chitooligosaccharide backbone (nitrogen fixation/common nod genes/Rhizobium meliloti)

TL;DR: In this article, the role of NodA protein in lipooli-gosaccharide biosynthesis was elucidated, where a radiolabeled tet- rasaccharides precursor carrying an amino group as a potential attachment site for N-acylation at the nonreducing glucosamine residue was presented.
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2-DE proteomic approach to the Botrytis cinerea secretome induced with different carbon sources and plant-based elicitors.

TL;DR: The observed increases in secretion of proteins with established virulence‐related functions indicate that this in vitro‐induction/proteome‐mining approach is a promising strategy for discovering new pathogenicity factors and dissecting infection mechanisms in a discrete fashion.