Initially it was believed that when ELT-2 was knocked out in nematodes this caused the nematodes to become sick from all pathogens, even ones that were not previously pathogenic. However, an experiment conducted later suggested that in older cultures of bacteria the ELT-2 knocked out nematodes do not become sick from pathogens that were previously nonpathogenic. In order to clarify the role of ...

in order to identify the plant parasitic nematodes of tomato fields in northern khorasan province, 50 soil and root samples were collected during 2009 - 2010. nematodes were extracted by combined sieving and centrifugal-flotation method and processed to be transferred to glycerin. after preparing microscope slides, the morphological and morphometrical characters of the nematodes were studied us...

conclusions through these results, the applicability of the used extracts in the control of eggs and/or larvae of t. canis and a. caninum is suggested. however, it is worth mentioning that further studies should be performed with the species e. edulis, m. glomerata and m. laevigata, using different extracts, new concentrations, and in vivo studies, in order to ensure further clarification on th...

LABORATORY MICROCOSMS WERE USED TO: i) measure the effects of soil moisture on survival of Steinernema riobravis and ii) investigate the suitability of using microcosms to study motility and survival of these nematodes. Nematodes recovered from soil contained in petri dishes declined by more than 95% during 7 days, whereas nematodes recovered from the inner surfaces of dishes increased 35-fold....

Entomopathogenic nematodes are generally considered beneficial organisms. However, they can affect beneficial insects such as parasitoids. The interaction between the entomopathogenic nematodes Heterorhabditis bacteriophora Poinar (Rhabditida: Heterorhabditidae) and Steinernema carpocapsae Weiser, and the parasitoid Microplitis rufiventris Kokujev (Hymenoptera: Braconidae) was investigated in t...