Polyclonal Antisera To Distinguish Strains and Form Variants of Photorhabdus (Xenorhabdus) luminescens
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چکیده
منابع مشابه
Characterization of form variants of Xenorhabdus luminescens.
From Xenorhabdus luminescens XE-87.3 four variants were isolated. One, which produced a red pigment and antibiotics, was luminescent, and could take up dye from culture media, was considered the primary form (XE-red). A pink-pigmented variant (XE-pink) differed from the primary form only in pigmentation and uptake of dye. Of the two other variants, one produced a yellow pigment and fewer antibi...
متن کاملPhase Variation in Xenorhabdus nematophilus and Photorhabdus luminescens: Differences in Respiratory Activity and Membrane Energization.
Phase variation in Xenorhabdus and Photorhabdus spp. has a significant impact on their symbiotic relationship with entomopathogenic nematodes by altering the metabolic by-products upon which the nematodes feed. The preferential retention of the phase I variant by the infective-stage nematode and its better support for nematode reproduction than phase II indicates its importance in the bacterial...
متن کاملMolecular identification and genetic diversity among Photorhabdus and Xenorhabdus isolates
Five bacterial strains were isolated from the hemocoel of the greater wax moth larvae (Galleria mellonella) infected with the entomopathogenic nematodes: Heterorhabditis bacteriophora HP88, Heterorhabditis indicus RM1 and Heterorhabditis sp (S1), Steinernema abbasi and Steinernema sp. (S II). Strains were identified as Photorhabdus luminescens HRM1, P. luminescens HS1, P. luminescens HP88, Xeno...
متن کاملToxins and Secretion Systems of Photorhabdus luminescens
Photorhabdus luminescens is a nematode-symbiotic, gram negative, bioluminescent bacterium, belonging to the family of Enterobacteriaceae. Recent studies show the importance of this bacterium as an alternative source of insecticides, as well as an emerging human pathogen. Various toxins have been identified and characterized in this bacterium. These toxins are classified into four major groups: ...
متن کاملComposition and Biophysical Properties of Lipids in Xenorhabdus nematophilus and Photorhabdus luminescens, Symbiotic Bacteria Associated with Entomopathogenic Nematodes.
Primary and secondary forms of Photorhabdus luminescens Hm and Xenorhabdus nematophilus N2-4 were grown at 18 and 28(deg)C for 24 to 96 h, and we made determinations of the fatty-acid compositions of total lipids and of the fluidity measured by 5-doxyl-stearic acid embedded in liposomes made from total lipids. The levels of the unsaturated fatty acids 16:1 and 18:1 (those with chain lengths of ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1995
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.61.1.284-289.1995