Selection of bacteria for biological control of Meloidogyne incognita in fig
The inclusion of biological control in the integrated management of M. incognita was established as an important strategy for the fig tree of culture in Brazil, as they are not available nematicides and rootstocks resistant in the country. Among the biocontrol, rhizobacteria have potential because they can act to promote plant growth and inhibiting or nematodes. The objective of this work was to isolate bacteria with potential for biocontrol of M. incognita from fig roots and bituminous shale rocks and select the most promising isolated by in vitro assays. 124 isolates were obtained from bituminous shale and fig tree roots and evaluated in vitro tests on the effect on eggs and juveniles of second stage of M. incognita and production of compounds related to the biological control of nematodes. From the results obtained, 14 bacteria were considered more promising, producing at least one compound related to the biocontrol plant parasitic nematode, of the five tested compounds and high levels of mortality (78-100%) or inhibition of hatching (73-100% ) of second stage juveniles of the nematode. The reduction in the number of isolates obtained in this study is important to enable in vivo studies confirming the potential of these rhizobacteria to control M. incognita in fig.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | por |
| Published: |
Facultad de Ciencias Agrarias y Forestales de la Universidad Nacional de La Plata
2019
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| Online Access: | https://revistas.unlp.edu.ar/revagro/article/view/7605 |
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