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- Title
Meloidogyne enterolobii development and reproduction in tomato plants treated with resistance inducers.
- Authors
Silva, Juliana de O.; Oliveira, Camilla M.; Carneiro, Renê G. da S.; da Rocha, Mara R.
- Abstract
Summary: Meloidogyne enterolobii is a species capable of overcoming plant resistance moderated by the Mi -1 gene, which is effective against most species of root-knot nematode. This study evaluated the effect of induced resistance in tomato plants (Solanum lycopersicum 'H-9553') with the Mi -1 gene against the development and reproduction of M. enterolobii. Seedlings of tomato 'H-9553' were transplanted into pots, inoculated with 2000 eggs and second-stage juveniles (J2) of M. enterolobii and treated with Acibenzolar-S-Methyl, Bacillus subtilis , B. subtilis + B. licheniformis + Trichoderma longibrachiatum and extract of Reynoutria sachalinensis. The plants were collected at 5, 10, 15, 20, 25 and 30 days after inoculation (DAI) for the analyses of nematode penetration and development, and at 30 DAI for nematode reproduction. The use of B. subtilis increased fresh root weight when compared to the other treatments (20 DAI). There was a reduction in penetration of J2 in the roots of plants subjected to different resistance inducers. The population density of M. enterolobii was significantly reduced only when plants were treated with R. sachalinensis , indicating it as a potential resistance-inducing agent in tomato plants.
- Subjects
PLANT reproduction; ROOT-knot nematodes; BACILLUS subtilis; ROOT-knot; BACILLUS licheniformis; TOMATOES; SOUTHERN root-knot nematode
- Publication
Nematology, 2022, Vol 24, Issue 3, p283
- ISSN
1388-5545
- Publication type
Article
- DOI
10.1163/15685411-bja10129