Saprobic fungi inhabiting tomato phylloplane as possible antagonists of Alternaria solani

Monaco, C.I.; Nico, A.I.; Mitidieri, I.; Alippi, h.E.

Saprobic fungi inhabiting tomato phylloplane as possible antagonists of Alternaria solani

1999

Monaco, C.I. | Nico, A.I. | Mitidieri, I. | Alippi, h.E.

The effect of saprobic fungi inhabiting the tomato phylloplane on the expression of tomato early blight (caused by Alternaria solani) was evaluated. Artifical inoculation with the pathogen and the antagonists was carried out in a commercial greenhouse on four-month-old tomato plants (cv. Parador, Asgrow Seeds, Co.). Inoculation with the antagonist was made an hour before inoculation with the pathogen. Inoculum of saprobic fungi was produced on potato-dextrose agar (PDA). The concentration of the microorganism propagules was diluted to 100000000 c.f.u./ml. Alternaria solani inoculum was obtained on cornmeal agar and the concentration used for the inoculation was 1000000 c.f.u./ml.

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