scholarly journals Fe2+ chelator proferrorosamine A: a gene cluster of Erwinia rhapontici P45 involved in its synthesis and its impact on growth of Erwinia amylovora CFBP1430

Microbiology ◽  
2016 ◽  
Vol 162 (2) ◽  
pp. 236-245 ◽  
Author(s):  
Yannick Born ◽  
Mitja N. P. Remus-Emsermann ◽  
Marco Bieri ◽  
Tim Kamber ◽  
Jörn Piel ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Erwinia Amylovora ◽  
Erwinia Rhapontici

scholarly journals Genetic Organization of the hrp Gene Cluster and dspAE/BF Operon in Erwinia herbicola pv. gypsophilae

2001 ◽  
Vol 14 (3) ◽  
pp. 431-436 ◽  
Author(s):  
Henia Mor ◽  
Shulamit Manulis ◽  
Michal Zuck ◽  
Roni Nizan ◽  
David L. Coplin ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Erwinia Amylovora ◽  
Amino Acid Identity ◽  
Specific Region ◽  
Gall Formation ◽  
Erwinia Herbicola ◽  
Acid Identity ◽  
Pantoea Stewartii ◽  
Hrp Genes ◽  
Disease Specific

Erwinia herbicola pv. gypsophilae induces gall formation in gypsophila that is dependent on the existence of a pathogenicity plasmid (pPATHEhg). We previously demonstrated the presence of several hrp genes on this plasmid. By employing transposon mutagenesis and sequencing, a functional hrp gene cluster on the pPATHEhg has now been characterized completely. The hrp genes of E. herbicola pv. gypsophilae are remarkably similar to and colinear with those of Erwinia amylovora and Pantoea stewartii and generally showed 60 to 90% nucleotide or deduced amino acid identity. E. herbicola pv. gypsophilae, however, lacks hrpW, which is present in E. amylovora. Additionally, E. herbicola pv. gypsophilae mutants deficient in harpin production retained pathogenicity and were slightly reduced in their ability to elicit a hypersensitive response (HR) in tobacco. The “disease specific ” region, dspA/EB/F, exhibited 60 to 74% identity with the dspA/EB/F loci of E. amylovora and P. stewartii, respectively. Mutations in dspA/E abolished pathogenicity of E. herbicola pv. gypsophilae but not HR elicitation on tobacco. Inactivation of HrpL reduced plant-induced transcription of dspA/E by three orders, indicating Hrp-dependent regulation.

The hrp Gene Cluster of Erwinia Amylovora

1991 ◽  
pp. 53-60 ◽  
Author(s):  
S. V. Beer ◽  
D. W. Bauer ◽  
X. H. Jiang ◽  
R. J. Laby ◽  
B. J. Sneath ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Erwinia Amylovora

Cloning of a large gene cluster involved in Erwinia amylovora CFBP1430 virulence

1990 ◽  
Vol 4 (5) ◽  
pp. 777-786 ◽  
Author(s):  
M. A. Barny ◽  
M. H. Guinebretière ◽  
B. Marçais ◽  
E. Coissac ◽  
J. P. Paulin ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Erwinia Amylovora ◽  
Large Gene

scholarly journals Novel mechanism of metabolic co-regulation coordinates the biosynthesis of secondary metabolites in Pseudomonas protegens

eLife ◽  
2017 ◽  
Vol 6 ◽  
Author(s):  
Qing Yan ◽  
Benjamin Philmus ◽  
Jeff H Chang ◽  
Joyce E Loper
Keyword(s):  
Secondary Metabolites ◽  
Gene Cluster ◽  
Erwinia Amylovora ◽  
Microbial Interactions ◽  
Pathogenic Bacterium ◽  
Soil Bacterium ◽  
Biosynthetic Pathways ◽  
Plant Pathogenic Bacterium ◽  
Biosynthetic Genes ◽  
Antimicrobial Metabolites

Metabolic co-regulation between biosynthetic pathways for secondary metabolites is common in microbes and can play an important role in microbial interactions. Here, we describe a novel mechanism of metabolic co-regulation in which an intermediate in one pathway is converted into signals that activate a second pathway. Our study focused on the co-regulation of 2,4-diacetylphloroglucinol (DAPG) and pyoluteorin, two antimicrobial metabolites produced by the soil bacterium Pseudomonas protegens. We show that an intermediate in DAPG biosynthesis, phloroglucinol, is transformed by a halogenase encoded in the pyoluteorin gene cluster into mono- and di-chlorinated phloroglucinols. The chlorinated phloroglucinols function as intra- and inter-cellular signals that induce the expression of pyoluteorin biosynthetic genes, pyoluteorin production, and pyoluteorin-mediated inhibition of the plant-pathogenic bacterium Erwinia amylovora. This metabolic co-regulation provides a strategy for P. protegens to optimize the deployment of secondary metabolites with distinct roles in cooperative and competitive microbial interactions.

THE HRP GENE CLUSTER OF ERWINIA AMYLOVORA CONTAINS HOMOLOGS OF YSC GENES OF YERSINIA

1996 ◽  
pp. 427-431
Author(s):  
A.J. Bogdanove ◽  
Z.-M. Wei ◽  
L. Zhao ◽  
S.V. Beer
Keyword(s):  
Gene Cluster ◽  
Erwinia Amylovora
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