BACKGROUND Alternaria alternata causes the Alternaria brown spot disease (ABS) in many tangerines and their hybrids worldwide. Plant extracts offer an alternative method for controlling this disease, which control is based on chemical fungicides. AIMS To identify plant species with antifungal properties against A. alternata, the causal agent of the ABS. METHODS Plant extracts prepared from ...

BACKGROUND While it is well known that there is significant intraspecific variation in the content an potency of Alternaria alternata allergens, little data has been published on intraspecific variability for individual allergens from moulds. OBJECTIVE To assess the variability of Alt a 1 expression in different strains of A alternata. METHODS Eleven strains of A alternata were cultured in ...

BACKGROUND The mould Alternaria alternata is an important source of respiratory allergens. A. alternata extracts show great variations regarding allergenic potency. The aim of this study was to generate antibody probes specific for important Alternaria allergens and to use them to study allergen expression, depending on different culture conditions, as well as to search for cross-reactive aller...

In the present investigation five pathogenic fungal isolates such as Alternaria alternata, Alternaria macrospora MKP2, Alternaria macrospora MKP4 Alternaria sp. PMK1 and Alternaria sp. PMK2, were isolated from diseased leaves of parthenium plant and found to be pathogenic to this weed. Isolated pathogens were screened qualitatively and quantitatively for lignocellulolytic activities. All the fu...

Foeniculum vulgare Mill. commonly known as fennel, belongs to family Apiaceae. The aqueous and alcoholic seed extracts of Foeniculum vulgare Mill. were evaluated for their antifungal activity against Alternaria alternata, Mucor rouxii and Aspergillus flavus. The method used for determination of antifungal activity of both aqueous and alcoholic seed extracts was agar well diffusion method. The a...

BERNADOVIČOVÁ, S., IVANOVÁ, H. 2011. Hyphomycetes and Coelomycetes fungi isolated from affected leaves and twigs of cherry laurel trees. Folia oecol., 38: 137–145. The aim of this work was to identify fungi occurring on leaves and twigs of Prunus laurocerasus L. Mycological observations were carried out on leaves and twigs collected from symptomatic cherry laurels growing in green areas of the ...

During the study on endophytic fungi of stone fruits including apricot, peach and nectarine in W Azarbaijan (NW Iran), a large number of isolates with Alternaria characteristics were isolated from different parts of these plants and studied taxonomically. Isolation was made based on endophytic fungal isolation method and following surface sterilization procedure. From 100 different plant sample...

Background: Alternaria alternata (AA) is a fungus that has wide range of plant host and can cause diseases in humans and produces a number of mycotoxins. Exposure to high numbers of AA spores can trigger severe asthma exacerbations. Resistance to antifungal drug has been shown in this species. Trachyspermum copticum (Ajowan) is an annual herbaceous essential oil )EO) bearing plant . The ripenin...

Sensitization and exposure to the allergenic fungus Alternaria alternata has been associated with increased risk of asthma and asthma exacerbations. The first cells to encounter inhaled allergens are epithelial cells at the airway mucosal surface. Epithelial barrier function has previously been reported to be defective in asthma. This study investigated the contribution of proteases from Altern...

The in vitro biocontrol ability of Trichoderma harzianum on the phytopathogen Alternaria alternata improved in the presence of the growth regulators gibberellic acid (GA3), or indolacetic acid (IAA) or benzylaminopurine (BAP) or foliar nutrient at concentrations similar or higher than those used at the field level. These plant hormones decreased the secretion of endopolygalacturonase (endo-PG) ...