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Biological control of Fusarium oxysporum f. sp. lycopersici
Author(s) -
CAL A.,
PASCUAL S.,
LARENA I.,
MELGAREJO P.
Publication year - 1995
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1995.tb02750.x
Subject(s) - biology , chlamydospore , fusarium oxysporum f.sp. lycopersici , fusarium oxysporum , rhizosphere , fusarium , conidium , penicillium , biological pest control , fungi imperfecti , aspergillus nidulans , botany , hypha , wilt disease , horticulture , fusarium wilt , bacteria , biochemistry , genetics , mutant , gene
Fungi known to produce lytic enzymes were used in an attempt to control wilt of tomato caused by Fusarium oxysporum f. sp. lycopersici (FOL). Some of the fungal species (Penicillium oxalicum, Penicillium purpurogenum and Aspergillus nidulans) damaged hyphae of FOL in vitro and reduced the numbers of microconidia in the soil. Treatments with fungi did not result in a reduction in either chlamydospores of FOL in soil or populations of FOL in the rhizosphere of tomato. P. oxalicum was the most effective agent of biocontrol, and it reduced disease severity in both non‐autoclaved (20% decrease) and sterile soil. In sterile soil, P. oxalicum reduced disease with different levels of severity (27% decrease at high levels and 50% decrease at low levels). Disease control by A. nidulans and P purpurogenum was only achieved when disease severity was low in sterile soil (55% and 45%, respectively).