Pochonia chlamydosporia promotes the growth of tomato and lettuce plants
DOI:
https://doi.org/10.4025/actasciagron.v37i4.25042Keywords:
Lactuca sativa, nematophagous fungus, rhizosphere colonization, Solanum lycopersicum, Verticillium chlamydosporiumAbstract
The fungus Pochonia chlamydosporia is one of the most studied biological agents used to control plant-parasitic nematodes. This study found that the isolates Pc-3, Pc-10 and Pc-19 of this fungus promote the growth of tomato and lettuce seedlings. The isolate Pc-19 colonized the rhizoplane of tomato seedlings in only 15 days and produced a large quantity of chlamydospores. This isolate was able to use cellulose as a carbon source, in addition to glucose and sucrose. Scanning electron microscopy (SEM) revealed that hyphae of the P. chlamydosporia isolate Pc-10 penetrated the epidermal cells of the tomato roots. These three P. chlamydosporia isolates promote the growth of tomato and lettuce.
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