Pochonia chlamydosporia promotes the growth of tomato and lettuce plants

Rosangela   Dallemole-Giaretta; Leandro   Grassi de Freitas; Everaldo Antônio   Lopes; Marliane    de Cássia Soares da Silva; Maria Catarina   Megumi Kasuya; Silamar   Ferraz

Pochonia chlamydosporia promotes the growth of tomato and lettuce plants

Autores

Rosangela Dallemole-Giaretta

Leandro Grassi de Freitas

Everaldo Antônio Lopes

Marliane de Cássia Soares da Silva

Maria Catarina Megumi Kasuya

Silamar Ferraz

Editor

Universidade Estadual de Maringá

Descripción

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 le ttuce seedlings. The isolate Pc-19 co lonized the rhizoplane of tomato seedlings in only 15 days and produced a large quanti ty of chlamydospores. This isolate was able to use cellulose as a carbon source, in ad dition to glucose and sucrose. Sc anning 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.