Decaying oranges or other citrus fruits are almost invariably infected by one of two moulds, viz.,P. digitatum Saccardo ( = P. olivaceum W ehmer), which causes the olive-coloured rot, and P. italicum Wehmer, which is responsible for the blue-green rot. I t has been found in the course of work tha t each of these species has very definite biochemical characteristics which are described in this p...

The larvicidal effect of secondary metabolites Verticillum lecanii,Pencillium chrysogenum and Aspergillus niger against filaria vector Cx.quinquefasciatus was investigated. efficacies have been tested at four different concentrations mentioned fungi (25,50,75,100)ppm .larvicidal efficacy demonstrates that larval mortality related to concentration, exposure time age. Higher observed high moreove...

The ecophysiology of five filamentous species affiliated to the Alphaproteobacteria was investigated in industrial activated sludge systems. The five species, 'Candidatus Alysiosphaera europaea', 'Candidatus Monilibacter batavus', 'Candidatus Alysiomicrobium bavaricum', 'Candidatus Sphaeronema italicum' and Meganema perideroedes, are very abundant in industrial wastewater treatment plants and a...

In this study, we evaluated the activity of short antimicrobial peptides against different fungal isolates that cause postharvest decay of fresh fruits. The previously identified hexapeptides PAF19, PAF26 and LfcinB4-9 inhibited the in vitro growth of isolates from Penicillium digitatum and P. italicum, and from Alternaria and Geotrichum genera, being no active against Rhizopus, Mucor and Asper...

In this research, the antifungal role of hydrogen sulfide (H2S) on the postharvest pathogens Aspergillus niger and Penicillium italicum growing on fruits and under culture conditions on defined media was investigated. Our results show that H2S, released by sodium hydrosulfide (NaHS) effectively reduced the postharvest decay of fruits induced by A. niger and P. italicum. Furthermore, H2S inhibit...

The fruits of Ficus hirta (FH) display strong antifungal activity against Penicillium italicum and Penicillium digitatum. In order to optimize the extraction conditions of antifungal extracts from FH fruit, various extraction parameters, such as ethanol concentration, extraction time, solvent to solid ratio and temperature, were chosen to identify their effects on the diameters of inhibition zo...

Natural products obtained from plants constitute an alternative to chemically synthesized fungicides, whose improper use might have caused the development of resistant fungal strains. In present work, 40 20 native Argentinean plant species were tested against three citrus postharvest pathogens: Penicillium digitatum, italicum, and Geotrichum citri-aurantii. by classical solvent extraction metho...