| description of four novel species of xenorhabdus, family enterobacteriaceae: xenorhabdus budapestensis sp. nov., xenorhabdus ehlersii sp. nov., xenorhabdus innexi sp. nov., and xenorhabdus szentirmaii sp. nov. | the taxonomic affiliation was determined for four xenorhabdus strains isolated from four steinernema hosts from different countries. as compared to the five validly described xenorhabdus species, i.e., x. nematophila, x. japonica, x. beddingii, x. bovienii and x. poinarii, these isolates represented novel species on the basis of 16s rrna gene sequences and riboprint patterns, as well as by physiological and metabolic properties. they were named xenorhabdus budapestensis sp. nov., type strain dsm ... | 2005 | 15830803 |
| a novel species of xenorhabdus, family enterobacteriaceae: xenorhabdus indica sp. nov., symbiotically associated with entomopathogenic nematode steinernema thermophilum ganguly and singh, 2000. | in the search for novel xenorhabdus strains in a recently described nematode species, steinernema thermophilum, three strains (strain 28(t) = dsm 17382(t), strain 42 = dsm 17383 and strain 43 = dsm 17384) were isolated from three independent isolation approaches from crushed mixture of infective juveniles. 16s rrna gene sequence comparison of strains 28(t) and dsm 17383 indicated identity and the phylogenetic position pointed towards an individual taxon within the phylogenetic dendrogram of xeno ... | 2006 | 16459045 |
| trans-cinnamic acid and xenorhabdus szentirmaii metabolites synergize the potency of some commercial fungicides. | development of novel approaches for the control of fungal phytopathogens is desirable. in this study we hypothesized that the combination of commercial fungicides with certain enhancing agents could result in synergistic levels of control. prior research has indicated that trans-cinnamic-acid (tca), a metabolite of the bacteria photorhabdus luminescens and metabolites of xenorhabdus szentirmaii are particularly toxic to various phytpathogenic fungi when compared to metabolites of other xenorhabd ... | 2017 | 28322849 |
| draft genome sequence and annotation of the entomopathogenic bacterium xenorhabdus szentirmaii strain dsm16338. | we report the genome sequence of xenorhabdus szentirmaii dsm16338 (4.84 mb), a symbiont of the entomopathogenic nematode steinernema rarum. this strain produces antimicrobial activity. | 2014 | 24625876 |
| synthesis of szentiamide, a depsipeptide from entomopathogenic xenorhabdus szentirmaii with activity against plasmodium falciparum. | the synthesis of the recently characterized depsipeptide szentiamide (1), which is produced by the entomopathogenic bacterium xenorhabdus szentirmaii, is described. whereas no biological activity was previously identified for 1, the material derived from the efficient synthesis enabled additional bioactivity tests leading to the identification of a notable activity against insect cells and plasmodium falciparum, the causative agent of malaria. | 2012 | 22563351 |
| the global regulators lrp, leuo, and hexa control secondary metabolism in entomopathogenic bacteria. | photorhabdus luminescens tto1 and xenorhabdus nematophila hgb081 are insect pathogenic bacteria and producers of various structurally diverse bioactive natural products. in these entomopathogenic bacteria we investigated the role of the global regulators lrp, leuo, and hexa in the production of natural products. lrp is a general activator of natural product biosynthesis in x. nematophila and for most compounds in tto1. microarray analysis confirmed these results in x. nematophila and enabled the ... | 2017 | 28261170 |
| szentiamide, an n-formylated cyclic depsipeptide from xenorhabdus szentirmaii dsm 16338t. | szentiamide (1) a new cyclic hexadepsipeptide was isolated from the culture broth of the entomopathogenic bacterium xenorhabdus szentirmaii dsm 16338t. the structure was elucidated by analysis of one- and two-dimensional nmr spectra and high resolution mass spectrometry. the amino acids were determined to be d-leucine, l-threonine, d-phenylalanine, d-valine, l-tyrosine and l-tryptophane after hydrolysis and derivatization with d-fdva [nalpha-(2,4-dinitro-5-fluorophenyl)-d-valinamide]. | 2011 | 21941889 |
| xenorhabdus antibiotics: a comparative analysis and potential utility for controlling mastitis caused by bacteria. | the role of antibiotics produced by bacterial symbionts of entomopathogenic nematodes is to suppress growth of microbes in the soil environment. these antibiotics are active against gram-positive and gram-negative bacteria, and were tested against mastitis isolates from dairy cows. | 2008 | 17976177 |
| xenofuranones a and b: phenylpyruvate dimers from xenorhabdus szentirmaii. | xenofuranones a (1) and b (2) have been isolated from cultures of the insect-pathogenic bacterium xenorhabdus szentirmaii, and their structures were elucidated by nmr and mass spectroscopy. both compounds show similarities to fungal furanones, and their biosynthesis was studied using a reversed approach by feeding putative 12c precursors to an overall 13c background in small-scale experiments followed by gas chromatographic analysis coupled to mass spectrometry. | 2006 | 17190473 |