Synergistic Effect between <i>Trichoderma virens</i> and <i>Bacillus velezensis</i> on the Control of Tomato Bacterial Wilt Disease
(1) Background: <i>Ralstonia solanacearum</i> causes tomato bacterial wilt disease, one of the most serious tomato diseases. As the combination of <i>Trichoderma</i> <i>virens</i> (Tvien6) and <i>Bacillus velezensis</i> (X5) was more effective at contr...
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/c78b4deb849943d9bfc2950b1dd5fcae |
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| Sumario: | (1) Background: <i>Ralstonia solanacearum</i> causes tomato bacterial wilt disease, one of the most serious tomato diseases. As the combination of <i>Trichoderma</i> <i>virens</i> (Tvien6) and <i>Bacillus velezensis</i> (X5) was more effective at controlling tomato bacterial wilt disease than a single agent, we investigated the synergistic effect of Tvien6 and X5 in controlling this disease; (2) Methods: The disease incidence, plant heights and weights, relative chlorophyll content (SPAD values), defensive enzymes (PPO, POD, and SOD) activities, and metabolome were estimated among four treatment groups (BR treatment, X5 + <i>R</i>. <i>solanacearum</i> (RS-15); TR treatment, Tvien6+ RS-15; TBR treatment, Tvien6 + X5 + RS-15; and R treatment, RS-15); (3) Results: The R treatment group had the highest disease incidence and lowest plant heights, plant weights, SPAD values, defensive enzyme activities, and D-fructose and D-glucose contents; the TBR treatment group had the lowest disease incidence and highest plant heights, plant weights, SPAD values, defensive enzyme activities, and D-fructose and D-glucose contents; (4) Conclusions: The results revealed that Tvien6 and X5 can both individually promote tomato plant growth, increase leaf chlorophyll content, enhance defensive enzyme activities, and induce the accumulation of D-fructose and D-glucose; however, they were more effective when combined. |
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