Re-assessing the infection strategies of the entomopathogenic nematode Steinernema feltiae (Rhabditidae; Steinernematidae)
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منابع مشابه
Re-assessing the infection strategies of the entomopathogenic nematode Steinernema feltiae (Rhabditidae; Steinernematidae).
Previous studies have indicated that between 60 and 80% of a population of entomopathogenic nematodes do not infect their insect hosts at any one period in time. Two hypotheses explain this behaviour: the first that there is a subpopulation of non-infectious nematodes and the second that the non-infectious group is created by inhibitory cues derived from infected insects. Through an experimenta...
متن کاملDevelopmental temperature effects on five geographic isolates of the entomopathogenic nematode Steinernema feltiae (Nematoda: Steinernematidae).
The development of five geographic isolates of Steinernema feltiae at 5, 8, 10, 15, 20, 25, and 28 degrees C in wax moth, Galleria mellonella, larvae was examined. The isolates were from Mediterranean (Sinop from Turkey, SN from France, and Monterey from California), subtropical (Rafaela from Argentina), and tropical (MG-14 from Hawaii) regions. All isolates caused 100% mortality of wax moth la...
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In Slovenia only recently entomopathogenic nematodes were recorded for the first time. In the beginning of 2007, the presence of Steinernema affine was confirmed. During the further investigations in the same year Steinernema feltiae was recorded on the arable field near Cerknica. In the previous year this field was planted with chicory. In Slovenia, until now the entomopathogenic nematodes had...
متن کاملGenetic Variability among Strains of the Entomopathogenic Nematode Steinernema feltiae.
A systematic program of genetic improvement was initiated by assessing the phenotypic variation of Steinernema feltiae strains for two traits assumed to limit efficacy: ultraviolet tolerance and host-finding ability. All of the strains assayed showed both low ultraviolet tolerance and poor host-finding ability, indicating that the likelihood of improving these traits through more extensive popu...
متن کاملNon-symbiotic association of Citrobacter freundii and Staphylococcus succinus with the entomopathogenic nematode Steinernema feltiae
نماتودهای خاکزی متعلق به خانواده Steinernematidae (Nematoda: Rhabditida) پارازیت های اجباری و کشنده حشرات بوده که معمولا تحت عنوان نماتودهای بیمارگر حشرات (Entomopathogenic nematodes) EPNs، از آنها نام برده می شود. این گروه از نماتودها به طور طبیعی با باکتری های جنس Xenorhabdus رابطه همزیستی داشته و نماتود مرحله سوم آلوده کننده یا Infective Juvenile، این باکتری ها را در یک وزیکول اختصاصی در ر...
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ژورنال
عنوان ژورنال: Parasitology
سال: 2000
ISSN: 0031-1820
DOI: 10.1017/s0031182099006216