Nomenclature Abstract for Erwinia tasmaniensis Geider et al. 2006.

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
George M Garrity
Keyword(s):  
Erwinia Tasmaniensis

Exemplar Abstract for Erwinia tasmaniensis Geider et al. 2006.

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Dorothea Taylor ◽  
George M Garrity
Keyword(s):  
Erwinia Tasmaniensis

Comparison of the Levansucrase from the epiphyte Erwinia tasmaniensis vs its homologue from the phytopathogen Erwinia amylovora

2019 ◽  
Vol 127 ◽  
pp. 496-501 ◽  
Author(s):  
Ivan Polsinelli ◽  
Rosanna Caliandro ◽  
Marco Salomone-Stagni ◽  
Nicola Demitri ◽  
Martin Rejzek ◽  
...  
Keyword(s):  
Erwinia Amylovora ◽  
Erwinia Tasmaniensis

scholarly journals The Structure of Sucrose-Soaked Levansucrase Crystals from Erwinia tasmaniensis reveals a Binding Pocket for Levanbiose

2019 ◽  
Vol 21 (1) ◽  
pp. 83 ◽  
Author(s):  
Ivan Polsinelli ◽  
Rosanna Caliandro ◽  
Nicola Demitri ◽  
Stefano Benini
Keyword(s):  
Crystal Structure ◽  
Potential Role ◽  
Binding Pocket ◽  
Chain Elongation ◽  
High Yield ◽  
Negative Bacterium ◽  
Yield Production ◽  
Wide Range ◽  
Hydrolysis Of ◽  
Erwinia Tasmaniensis

Given its potential role in the synthesis of novel prebiotics and applications in the pharmaceutical industry, a strong interest has developed in the enzyme levansucrase (LSC, EC 2.4.1.10). LSC catalyzes both the hydrolysis of sucrose (or sucroselike substrates) and the transfructosylation of a wide range of acceptors. LSC from the Gram-negative bacterium Erwinia tasmaniensis (EtLSC) is an interesting biocatalyst due to its high-yield production of fructooligosaccharides (FOSs). In order to learn more about the process of chain elongation, we obtained the crystal structure of EtLSC in complex with levanbiose (LBS). LBS is an FOS intermediate formed during the synthesis of longer-chain FOSs and levan. Analysis of the LBS binding pocket revealed that its structure was conserved in several related species. The binding pocket discovered in this crystal structure is an ideal target for future mutagenesis studies in order to understand its biological relevance and to engineer LSCs into tailored products.

scholarly journals Erwinia tasmaniensis sp. nov., a non-phytopathogenic bacterium from apple and pear trees

2006 ◽  
Vol 56 (12) ◽  
pp. 2937-2943 ◽  
Author(s):  
Klaus Geider ◽  
Georg Auling ◽  
Zhiqiang Du ◽  
Vladimir Jakovljevic ◽  
Susanne Jock ◽  
...  
Keyword(s):  
Dna Hybridization ◽  
Acid Methyl Ester ◽  
Molecular Classification ◽  
Separate Species ◽  
Phytopathogenic Bacterium ◽  
Acid Methyl ◽  
Microbiological Characteristics ◽  
Conserved Genes ◽  
Pear Trees ◽  
Erwinia Tasmaniensis

Bacteria were isolated from flowers and bark of apple and pear trees at three places in Australia. In Victoria, Tasmania and Queensland, strains with white colonies on nutrient agar were screened for dome-shaped colony morphology on agar with sucrose and were found to be closely related by several criteria. The isolates were not pathogenic on apples or pears. They were characterized by a polyphasic approach including microbiological and API assays as well as fatty acid methyl ester analysis, DNA–DNA hybridization and DNA sequencing. For molecular classification, the 16S rRNA cistron and the conserved genes gpd and recA of these bacteria were investigated. Together with other taxonomic criteria, the results of these studies indicate that the bacteria belong to a novel separate species, which we propose to name Erwinia tasmaniensis sp. nov., with the type strain Et1/99T (=DSM 17950T=NCPPB 4357T). From DNA–DNA hybridization kinetics, microbiological characteristics and nucleotide sequence analyses, this species is related to pathogenic Erwinia species, but also to the epiphytic species Erwinia billingiae.

scholarly journals Tasmancin and lysogenic bacteriophages induced from Erwinia tasmaniensis strains

2012 ◽  
Vol 167 (7) ◽  
pp. 381-387 ◽  
Author(s):  
Ina Müller ◽  
Rudi Lurz ◽  
Klaus Geider
Keyword(s):  
Erwinia Tasmaniensis
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