Isolation and characterisation of sugarcane rhizobacteria and their effect on nematodes

J.L. Vogel (1) , Jacques Balandreau (2) , Tania van Antwerpen (3) , P. Dana (3) , P Cadet (3)

1 South African Sugar Association Experiment Station
2 LEM - Laboratoire d'Ecologie Microbienne - UMR 5557
3 South African Sugarcane Research Institute

A survey showed that species of Burkholderia were frequently associated with the roots of sugarcane. Based on amplified ribosomal DNA restriction analysis the isolates of these bacteria belonged to Burkholderia groups A,B,C,F and G. Data collected from field trials revealed a succession of species during the growth of the crop. Strains belonging to the B. cepacia complex were dominant during the early stages of growth but, in time, were replaced by isolates of the B. tropicalis and B. caribensis groups. In a series of in vitro bioassays it was found that a large proportion of the Burkholderia isolates tested paralysed juveniles of a root-knot nematode, Meloidogyne sp.

Mots clés: rhizosphere; Burkholderia; Pseudomonas; nematode biocontrol; sugarcane

Domaines: Sciences du Vivant [q-bio]

J.L. Vogel, Jacques Balandreau, Tania van Antwerpen, P. Dana, P Cadet. Isolation and characterisation of sugarcane rhizobacteria and their effect on nematodes. Proceedings of the annual congress of the South African Sugar Technologist's Association, South African Sugar Technologist's Association, Jul 2002, Durban, South Africa. pp.305-309. ⟨hal-02551898⟩