INVESTIGADORES
ZUNINO Maria Paula
artículos
Título:
Effect of fungal volatile organic compounds on a fungus and an insect that damage stored maize
Autor/es:
HERRERA, JIMENA; PIZZOLITTO, ROMINA; ZUNINO, MARÍA; DAMBOLENA, JOSE; ZYGADLO, JULIO
Revista:
JOURNAL OF STORED PRODUCTS RESEARCH
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2015
ISSN:
0022-474X
Resumen:
The silo is an environment where a large number of biological interactions take place such as: insectmicroorganism-
grain interactions, which can generate great economic losses due to the deterioration
in quality of the grain and the presence of mycotoxins. In recent years, particular interest has been
focused on the search for environmentally friendly insecticides that will provide pest control in stored
grains. The volatile organic compounds (VOCs), of a fungal origin, were evaluated for the control of maize
grain pests: the insect Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae), the fungus Fusarium
verticillioides and its mycotoxin, fumonisin B1 (FB1). The most active fumigant compound tested was 1-
octen-3-ol (LD50 ¼ 27.7 mL/L air), followed by 3-octanol and 3-octanone (LD50 ¼ 43.2 and 219.7 mL/L air,
respectively). The fungal VOCs also showed repellent activity against S. zeamais, with antifugal activity
against F. verticillioides growth being inhibited at concentrations greater than 0.53 mM, while its
mycotoxin production capacity was inhibited depending on the compound concentration. At the repellent
concentration, the fungal VOCs showed low phytotoxicity activities. The results presented in this
paper demonstrate the potential of fungal VOCs as biopesticides, because they may control granivorous
insects, fungal growth and FB1 production, which consequently is of economic importance and might
improve food safety of stored grains.