Meloidogyne javanica control by Pochonia chlamydosporia, Gracilibacillus dipsosauri and soil conditioner in tomato
Organic matter plays a fundamental role in the antagonistic activity of microorganisms against phytonematode populations on the soil. In this study, the compatibility between the fungus Pochonia chlamydosporia (Pc-12) and the rhizobacterium Gracilibacillus dipsosauri (MIC 14) was evaluated in vitro,...
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Grupo Paulista de Fitopatologia
2013-06-01
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doaj-90f6b7b520484afdaa6d28a0c6682be82020-11-24T23:06:30ZengGrupo Paulista de FitopatologiaSumma Phytopathologica0100-54052013-06-0139212212510.1590/S0100-54052013000200007S0100-54052013000200007Meloidogyne javanica control by Pochonia chlamydosporia, Gracilibacillus dipsosauri and soil conditioner in tomatoGuilherme Silva de Podestá0Leandro Grassi de Freitas1Rosangela Dallemole-Giaretta2Ronaldo João Falcão Zooca3Larissa de Brito Caixeta4Silamar Ferraz5Universidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Tecnológica Federal do ParanáUniversidade Federal de ViçosaUniversidade de BrasíliaUniversidade Federal de ViçosaOrganic matter plays a fundamental role in the antagonistic activity of microorganisms against phytonematode populations on the soil. In this study, the compatibility between the fungus Pochonia chlamydosporia (Pc-12) and the rhizobacterium Gracilibacillus dipsosauri (MIC 14) was evaluated in vitro, as well as the effect of the fungus at the concentration of 5,000 chlamydospores per gram of soil, rhizobacterium at 4.65 x 10(9) cells/g of soil, and the soil conditioner Ribumin® at 10 g/pot, either alone or in combination, against Meloidogyne javanica population in tomato plants (3,000 eggs/pot). A suspension of water or Ribumin® alone was applied on the soil as negative control, while a suspension of nematode eggs was applied as positive control. The reduction in the number of galls in roots per plant was 48 and 41% for the treatments Ribumin + MIC 14 + Pc-12 and MIC 14 + Pc-12, respectively. Regarding to the number of eggs per plant, MIC 14 and Pc-12 + Ribumin led to a reduction by 26 and 21%, respectively, compared to the control treatment. Interaction between the nematophagous fungus and the rhizobacterium was positive for the nematode control, even though G. dipsosauri inhibited P. chlamydosporia growth by up to 30% in in vitro tests.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052013000200007&lng=en&tlng=enNematoide das galhasmatéria orgânicarizobactériacontrole alternativo |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Guilherme Silva de Podestá Leandro Grassi de Freitas Rosangela Dallemole-Giaretta Ronaldo João Falcão Zooca Larissa de Brito Caixeta Silamar Ferraz |
spellingShingle |
Guilherme Silva de Podestá Leandro Grassi de Freitas Rosangela Dallemole-Giaretta Ronaldo João Falcão Zooca Larissa de Brito Caixeta Silamar Ferraz Meloidogyne javanica control by Pochonia chlamydosporia, Gracilibacillus dipsosauri and soil conditioner in tomato Summa Phytopathologica Nematoide das galhas matéria orgânica rizobactéria controle alternativo |
author_facet |
Guilherme Silva de Podestá Leandro Grassi de Freitas Rosangela Dallemole-Giaretta Ronaldo João Falcão Zooca Larissa de Brito Caixeta Silamar Ferraz |
author_sort |
Guilherme Silva de Podestá |
title |
Meloidogyne javanica control by Pochonia chlamydosporia, Gracilibacillus dipsosauri and soil conditioner in tomato |
title_short |
Meloidogyne javanica control by Pochonia chlamydosporia, Gracilibacillus dipsosauri and soil conditioner in tomato |
title_full |
Meloidogyne javanica control by Pochonia chlamydosporia, Gracilibacillus dipsosauri and soil conditioner in tomato |
title_fullStr |
Meloidogyne javanica control by Pochonia chlamydosporia, Gracilibacillus dipsosauri and soil conditioner in tomato |
title_full_unstemmed |
Meloidogyne javanica control by Pochonia chlamydosporia, Gracilibacillus dipsosauri and soil conditioner in tomato |
title_sort |
meloidogyne javanica control by pochonia chlamydosporia, gracilibacillus dipsosauri and soil conditioner in tomato |
publisher |
Grupo Paulista de Fitopatologia |
series |
Summa Phytopathologica |
issn |
0100-5405 |
publishDate |
2013-06-01 |
description |
Organic matter plays a fundamental role in the antagonistic activity of microorganisms against phytonematode populations on the soil. In this study, the compatibility between the fungus Pochonia chlamydosporia (Pc-12) and the rhizobacterium Gracilibacillus dipsosauri (MIC 14) was evaluated in vitro, as well as the effect of the fungus at the concentration of 5,000 chlamydospores per gram of soil, rhizobacterium at 4.65 x 10(9) cells/g of soil, and the soil conditioner Ribumin® at 10 g/pot, either alone or in combination, against Meloidogyne javanica population in tomato plants (3,000 eggs/pot). A suspension of water or Ribumin® alone was applied on the soil as negative control, while a suspension of nematode eggs was applied as positive control. The reduction in the number of galls in roots per plant was 48 and 41% for the treatments Ribumin + MIC 14 + Pc-12 and MIC 14 + Pc-12, respectively. Regarding to the number of eggs per plant, MIC 14 and Pc-12 + Ribumin led to a reduction by 26 and 21%, respectively, compared to the control treatment. Interaction between the nematophagous fungus and the rhizobacterium was positive for the nematode control, even though G. dipsosauri inhibited P. chlamydosporia growth by up to 30% in in vitro tests. |
topic |
Nematoide das galhas matéria orgânica rizobactéria controle alternativo |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052013000200007&lng=en&tlng=en |
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