Are the nematophagous bacteria belong to the group of PGPR (plant growth promoting rhizobacteria)?

Mouna benelhadj djelloul @Mouna-Benelhadj-Djelloul

12 April 2016 1 7K Report

I found in many articles that bacillus sp and pseudomonas sp are the principal nematophagous bacteria which formed too the prncipal species of PGPR?can any one explain to me please?

Hamza Ettadili

nematophagous bacteria thy are used for plant parasitic nematode control. they may control nematode by producing Hydrogen cyanide (HCN) a volatile, secondary metabolite formed from glycine through the action of HC synthetase enzyme.
Bacillus, Pseudomonas, and Rhizobium are known to produce HCN.
Various studies attribute a disease protective effect to HCN like the suppression of “root-knot” and black rot in tomato and tobacco root caused by the nematodes Meloidogyne javanica and Thielaviopsis basicota, respectively (Siddiqui.,2006)

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