Entomopatojen nematodlar ve simbiyotik bakterileri

Abstract

Entomopathogenic nematodes (Heterorhabditidae and Steinernematidae) are widely used in biological control
of insect pests. These nematodes are characterized by their mutualistic relationship with symbiotic bacteria. The bacterial
symbionts are carried throughout the whole intestine of infective juveniles in Heterorhabditidae or in a special vesicle in
infective juvenils in Steinernematidae. The nematodes provide protection and transportation for their bacterial symbionts. The
bacterial symbionts in turn kill the host and establish and maintain suitable conditions for nematode reproduction, providing
nutrients and antimicrobial substances that inhibit the growth of other microorganisms. In this article, the relation between the
entomopathogenic nematodes and their symbiotic bacteria and also the possibilities of the utility of these entomopathogenic
nematodes&symbiotic bacteria complexes in agricultural pest management have been discussed.