Control of infection of tomato fruits by Alternaria and mycotoxin production using plant extracts

Tomato fruits are susceptible to infection by Alternaria species. In addition, Alternaria species may contaminate the fruits with mycotoxins. There is thus interest in control systems to minimise pathogenicity and control toxin production. The objectives of this study were to examine the effect of p...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: da Cruz Cabral, L., Fernández Pinto, V., Patriarca, A.
Formato: JOUR
Materias:
Alternariols
Antifungal
Calendula officinalis
Eucalyptus globulus
Tenuazonic acid
aggression
bioassay
biocontrol agent
biological control
chloroform
crop plant
ethanol
evergreen tree
fruit
fungal disease
fungus
growth
herb
inhibition
pathogenicity
plant extract
toxin
Alternaria
Alternaria alternata
Alternaria arborescens
Lycopersicon esculentum
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09291873_v145_n2_p363_daCruzCabral
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09291873_v145_n2_p363_daCruzCabral
record_format dspace
spelling todo:paper_09291873_v145_n2_p363_daCruzCabral2023-10-03T15:47:33Z Control of infection of tomato fruits by Alternaria and mycotoxin production using plant extracts da Cruz Cabral, L. Fernández Pinto, V. Patriarca, A. Alternariols Antifungal Calendula officinalis Eucalyptus globulus Tenuazonic acid aggression bioassay biocontrol agent biological control chloroform crop plant ethanol evergreen tree fruit fungal disease fungus growth herb inhibition pathogenicity plant extract toxin Alternaria Alternaria alternata Alternaria arborescens Calendula officinalis Eucalyptus globulus Lycopersicon esculentum Tomato fruits are susceptible to infection by Alternaria species. In addition, Alternaria species may contaminate the fruits with mycotoxins. There is thus interest in control systems to minimise pathogenicity and control toxin production. The objectives of this study were to examine the effect of plant extracts of Eucalyptus globulus and Calendula officinalis on the growth of strains of Alternaria alternata and A. arborescens, on pathogenicity of tomato fruits and mycotoxin production. The growth bioassays showed that the ethanolic and chloroformic fractions of E. globulus were the most effective in reducing growth of A. alternata (66–74 %) and A. arborescens (86–88 %), respectively at 2500 μg/g. The effects of plant extracts on mycotoxin biosynthesis were variable and strain dependent. The most effective fractions in decreasing mycotoxin accumulation were the ethanolic and chloroformic extracts of E. globulus, which reduced tenuazonic acid by 89 %, alternariol by 75–94 % and almost complete inhibition of alternariol monomethyl ether. All the tested fractions reduced percentage of infected tomato fruits when compared to the controls. The ethanolic and chloroformic fractions of E. globulus completely inhibited growth of A. alternata and A. arborescens on unwounded fruits and reduced the aggressiveness on wounded fruits of strains of both species significantly. © 2016, Koninklijke Nederlandse Planteziektenkundige Vereniging. Fil:Patriarca, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09291873_v145_n2_p363_daCruzCabral
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Alternariols
Antifungal
Calendula officinalis
Eucalyptus globulus
Tenuazonic acid
aggression
bioassay
biocontrol agent
biological control
chloroform
crop plant
ethanol
evergreen tree
fruit
fungal disease
fungus
growth
herb
inhibition
pathogenicity
plant extract
toxin
Alternaria
Alternaria alternata
Alternaria arborescens
Calendula officinalis
Eucalyptus globulus
Lycopersicon esculentum
spellingShingle Alternariols
Antifungal
Calendula officinalis
Eucalyptus globulus
Tenuazonic acid
aggression
bioassay
biocontrol agent
biological control
chloroform
crop plant
ethanol
evergreen tree
fruit
fungal disease
fungus
growth
herb
inhibition
pathogenicity
plant extract
toxin
Alternaria
Alternaria alternata
Alternaria arborescens
Calendula officinalis
Eucalyptus globulus
Lycopersicon esculentum
da Cruz Cabral, L.
Fernández Pinto, V.
Patriarca, A.
Control of infection of tomato fruits by Alternaria and mycotoxin production using plant extracts
topic_facet Alternariols
Antifungal
Calendula officinalis
Eucalyptus globulus
Tenuazonic acid
aggression
bioassay
biocontrol agent
biological control
chloroform
crop plant
ethanol
evergreen tree
fruit
fungal disease
fungus
growth
herb
inhibition
pathogenicity
plant extract
toxin
Alternaria
Alternaria alternata
Alternaria arborescens
Calendula officinalis
Eucalyptus globulus
Lycopersicon esculentum
description Tomato fruits are susceptible to infection by Alternaria species. In addition, Alternaria species may contaminate the fruits with mycotoxins. There is thus interest in control systems to minimise pathogenicity and control toxin production. The objectives of this study were to examine the effect of plant extracts of Eucalyptus globulus and Calendula officinalis on the growth of strains of Alternaria alternata and A. arborescens, on pathogenicity of tomato fruits and mycotoxin production. The growth bioassays showed that the ethanolic and chloroformic fractions of E. globulus were the most effective in reducing growth of A. alternata (66–74 %) and A. arborescens (86–88 %), respectively at 2500 μg/g. The effects of plant extracts on mycotoxin biosynthesis were variable and strain dependent. The most effective fractions in decreasing mycotoxin accumulation were the ethanolic and chloroformic extracts of E. globulus, which reduced tenuazonic acid by 89 %, alternariol by 75–94 % and almost complete inhibition of alternariol monomethyl ether. All the tested fractions reduced percentage of infected tomato fruits when compared to the controls. The ethanolic and chloroformic fractions of E. globulus completely inhibited growth of A. alternata and A. arborescens on unwounded fruits and reduced the aggressiveness on wounded fruits of strains of both species significantly. © 2016, Koninklijke Nederlandse Planteziektenkundige Vereniging.
format JOUR
author da Cruz Cabral, L.
Fernández Pinto, V.
Patriarca, A.
author_facet da Cruz Cabral, L.
Fernández Pinto, V.
Patriarca, A.
author_sort da Cruz Cabral, L.
title Control of infection of tomato fruits by Alternaria and mycotoxin production using plant extracts
title_short Control of infection of tomato fruits by Alternaria and mycotoxin production using plant extracts
title_full Control of infection of tomato fruits by Alternaria and mycotoxin production using plant extracts
title_fullStr Control of infection of tomato fruits by Alternaria and mycotoxin production using plant extracts
title_full_unstemmed Control of infection of tomato fruits by Alternaria and mycotoxin production using plant extracts
title_sort control of infection of tomato fruits by alternaria and mycotoxin production using plant extracts
url http://hdl.handle.net/20.500.12110/paper_09291873_v145_n2_p363_daCruzCabral
work_keys_str_mv AT dacruzcabrall controlofinfectionoftomatofruitsbyalternariaandmycotoxinproductionusingplantextracts
AT fernandezpintov controlofinfectionoftomatofruitsbyalternariaandmycotoxinproductionusingplantextracts
AT patriarcaa controlofinfectionoftomatofruitsbyalternariaandmycotoxinproductionusingplantextracts
_version_ 1782027577260507136

Ejemplares similares