Two distinct hemolytic activities in Xenorhabdus nematophila are active against immunocompetent insect cells

Article Abstract:

Researchers have identified two types of hemolytic activity in the insect pathogen Xenorhabdus nematophila, one of which targets insect granulocytes and the other targets insect plasmatocytes. This hemolytic activity is lost if the flhD gene is inactivated.

Bacteria, Pathogenic, Pathogenic bacteria, Insect pests, Biological insect control

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Stages of infection during the tripartite interaction between Xenorhabdus nematophila, its nematode vector, and insect hosts

Article Abstract:

The early steps of insect colonization by the bacterial symbiont by constructing a green fluorescent protein (GFP)-labeled Xenorhabdus nematophila strain are described. The extracelluar matrix acts as a particular colonization site for X. nematophila with insects.

Science & research, Nematoda, Nematodes, Insect societies

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Biochemical characterization and agglutinating properties of Xenorhabdus nematophilus F1 fimbriae

Article Abstract:

The phase I variants of Xenorhabdus nematophilus F1 contains fimbriae which are composed of 16-kDa pilin subunits, but the phase II variants have no fimbriae and do not synthesize pilin. Also the phase I variants exhibit a agglutinating activity with the erythrocytes of sheep, rabbit and humans, and hemocytes of the insect Galleria mellonella. The purified fimbriae are responsible for the agglutination.

Analysis, Biochemistry, Bacteria, Agglutination

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