Abstract

The bacteria associated to egg masses and second stage juveniles (J2) of root-knot nematodes (Meloidogyne spp.)were studied using three different soils from naturally infested farms in Apulia (Italy). The species were isolatedand identified with 16S rRNA sequencing or characterized with metabolic profiles. They included members ofgenera Pseudomonas and Bacillus, together with Lysinibacillus sphaericus and an unclassified Chryseobacterium sp.To identify potential biocontrol agents, a greenhouse assay was carried out with isolates of B. cereus, B. licheniformis,L. sphaericus, P. fluorescens and P. brassicacearum. The bacteria were introduced in soil on tomatoseedlings before inoculation with juveniles of Meloidogyne incognita, and significantly reduced the nematodedensities after two reproductive cycles. However, plants and root weights were not affected by treatments. In asecond assay with higher bacterial inocula, B. licheniformis and P. fluorescens significantly reduced the J2 gallingon tomato roots, at 21 dpi. The potential of rhizosphere bacteria in management of root knot nematodes isdiscussed.

Autore Pugliese

• Colagiero Mariantonietta

Tutti gli autori

• Colagiero M.A.; Rosso L.C.; Ciancio A.

Titolo volume/Rivista

Biological control

Anno di pubblicazione

2018

ISSN

1090-2112

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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