| new insight into diversity in the genus xenorhabdus, including the description of ten novel species. | we investigated the diversity of a collection of 76 xenorhabdus strains, isolated from at least 27 species of steinernema nematodes and collected in 32 countries, using three complementary approaches: 16s rrna gene sequencing, molecular typing and phenotypic characterization. the 16s rrna gene sequences of the xenorhabdus strains were highly conserved (similarity coefficient >95 %), suggesting that the common ancestor of the genus probably emerged between 250 and 500 million years ago. based on ... | 2006 | 17158981 |
| an entomopathogenic bacterium, xenorhabdus hominickii anu101, produces oxindole and suppresses host insect immune response by inhibiting eicosanoid biosynthesis. | an entomopathogenic bacterium, xenorhabdus hominickii anu101, was isolated from an entomopathogenic nematode, steinernema monticolum. x. hominickii exhibited significant insecticidal activities at ≥6.6×10(2) colony-forming units per larva against a lepidopteran insect, spodoptera exigua with hemocoelic injection. the insecticidal activity of x. hominickii was reduced by an addition of arachidonic acid (aa, a catalytic product of pla2), but enhanced by an addition by dexamethasone (dex, a specifi ... | 2017 | 28302381 |
| identification and bacterial characteristics of xenorhabdus hominickii anu101 from an entomopathogenic nematode, steinernema monticolum. | an entomopathogenic nematode, steinernema monticolum, was collected in korea. its identity was confirmed by morphological and molecular characters. its symbiotic bacterium, xenorhabdus hominickii anu101, was isolated and assessed in terms of bacterial characteristics. sixty-eight different carbon sources were utilized by x. hominickii anu101 out of 95 different sources from a biolog assay. compared to other xenorhabdus species, x. hominickii anu101 was relatively susceptible to high temperatures ... | 2017 | 28193447 |
| description of xenorhabdus khoisanae sp. nov., the symbiont of the entomopathogenic nematode steinernema khoisanae. | bacterial strain sf87(t), and additional strains sf80, sf362 and 106-c, isolated from the nematode steinernema khoisanae, are non-bioluminescent gram-reaction-negative bacteria that share many of the carbohydrate fermentation reactions recorded for the type strains of recognized xenorhabdus species. based on 16s rrna gene sequence data, strain sf87(t) is shown to be closely related (98% similarity) to xenorhabdus hominickii dsm 17903(t). nucleotide sequences of strain sf87 obtained from the reca ... | 2013 | 23456807 |