نتایج جستجو برای: steinernematidae
تعداد نتایج: 233 فیلتر نتایج به سال:
Virulence of commercial strains entomopathogenic nematode (EPN) Steinernema carpocapsae (Weiser), feltiae Filipjev and Heterorhabditis bacteriophora Poinar (Rhabditida: Steinernematidae, Heterorhabditidae), were tested on young females Pulvinaria hydrangeae Steinweden, Partenolecanium corni (Bouché) Coccus pseudomagnoliarum (Kuwana) (Hemiptera, Coccidae) a native strain H. was citricola scale, ...
A survey of the nature and phylogenetic distribution of nematode vulval appendages revealed 3 major classes based on composition, position, and orientation that included membranes, flaps, and epiptygmata. Minor classes included cuticular inflations, protruding vulvar appendages of extruded gonadal tissues, vulval ridges, and peri-vulval pits. Vulval membranes were found in Mermithida, Triplonch...
Xenorhabdus is a major insect pathogen symbiotically associated with nematodes of the family Steinernematidae. This motile bacterium displays swarming behavior on suitable media, but a spontaneous loss of motility is observed as part of a phenomenon designated phase variation which involves the loss of stationary-phase products active as antibiotics and potential virulence factors. To investiga...
Abstract Background Entomopathogenic nematodes (EPNs) (Steinernematidae and Heterorhabditidae) their symbiotic bacteria are pathogenic for a wide range of insect pests have been used successfully as biological control agent. Although EPNs well studied against many agricultural pests, the efficacy still remains unclear importance. In present study, virulence native EPN isolates cell-free superna...
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