| phylogeny of steinernema travassos, 1927 (cephalobina: steinernematidae) inferred from ribosomal dna sequences and morphological characters. | entomopathogenic nematodes in steinernema, together with their symbiont bacteria xenorhabdus, are obligate and lethal parasites of insects that can provide effective biological control of some important lepidopteran, dipteran, and coleopteran pests of commercial crops. phylogenetic relationships among 21 steinernema species were estimated using 28s ribosomal dna (rdna) sequences and morphological characters. sequences of the rdna internal transcribed spacers were obtained to provide additional m ... | 2001 | 11534654 |
| identification of an entomopathogenic bacterium, serratia sp. anu101, and its hemolytic activity. | four different bacterial colonies were isolated from an old stock of an entomopathogenic nematode, steinernema monticolum. they all showed entomopathogenicity to final instar larvae of beet armyworm, spodoptera exigua, by hemocoelic injection. however, they varied in colony form, susceptibility to antibiotics, and postmortem change of the infected host insects. biolog microbial identification and 16s rdna sequence analyses indicate that these are four different species classified into different ... | 2009 | 19349758 |
| 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 |
| 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 |