Potential of some endophytic bacteria in biological control of root-knot nematode Meloidogyne incognita

Abstract Background Root-knot nematodes ( Meloidogyne spp.) are among the most important plant pathogens. Biological control is one of safety and effective methods for these nematodes. The aim present study was isolation identification endophytic bacteria from tomato fields in some areas Iran order to evaluate their biocontrol potential against root-knot nematode. In study, population collected infected cucumber roots a greenhouse, were isolated samples West-Azarbaijan province Iran. effects bacterial isolates on hatching mortality nematode second-stage juveniles evaluated, six selected infection susceptible cultivar with evaluated under greenhouse conditions. Results identified as incognita . showed that all exhibited considerable inhibitory hatching. also caused juveniles. Six notable selected, supplementary experiments molecular performed. Isolates 1, 2, 5, 7, 10, 11 follows: Bacillus wiedmannii (MW405861), Pseudoxantomonas mexicana (MW405860), Pseudomonas thivervalensis (MW405862), Serratia liquefaciens (MW405864), chlororaphis (MW405863), P fluorescens (MW405825), respectively. Based results experiment, good terms reduction galls egg masses However, B S had best investigated factors compared other isolates. , resulted moderate effects. less than others cases no effect reduction. Conclusions candidates management use such agents instead chemicals will be very valuable