Efeitos do filtrado de Cladobotryum amazonense Bastos, Evans e Samson sobre tres espécies de Phytophthora isolados do cacaueiro
The effects of the culture filtrate of Cladobotryum amazonense upon Phytophthora palmivora, P. capsici and P. citrophthora, agents of black pod and canker of cacao in Brazil were studied. In vitro tests were made using potato-dextrose-agar medium containing culture filtrate at 25 percent on microscope slides and mycelial discs of the isolates. For in vivo tests the discs of the mycelium of the isolates were dipped in the filtrate for 60 minutes, washed in sterilised water and then used to inoculated on cacao pods. The results show that the filtrate was considerably toxic to all three species of Phytophthora as both mycelial growth in vitro and lesion formation capability in vivo were inhibited.
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| Main Authors: | , |
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| Format: | biblioteca |
| Published: |
1983
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| Subjects: | THEOBROMA CACAO, PHYTOPHTHORA PALMIVORA, PHYTOPHTHORA CAPSICI, PHYTOPHTHORA CITROPHTHORA, CLADOBOTRYUM AMAZONENSE, AISLAMIENTOS, FILTRACION, INOCULACION, BRASIL, |
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| Summary: | The effects of the culture filtrate of Cladobotryum amazonense upon Phytophthora palmivora, P. capsici and P. citrophthora, agents of black pod and canker of cacao in Brazil were studied. In vitro tests were made using potato-dextrose-agar medium containing culture filtrate at 25 percent on microscope slides and mycelial discs of the isolates. For in vivo tests the discs of the mycelium of the isolates were dipped in the filtrate for 60 minutes, washed in sterilised water and then used to inoculated on cacao pods. The results show that the filtrate was considerably toxic to all three species of Phytophthora as both mycelial growth in vitro and lesion formation capability in vivo were inhibited. |
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