The cosmopolitan fungal genus Alternaria consists of multiple saprophytic and pathogenic species. Based on phylogenetic and morphological studies, the genus is currently divided into 26 sections. Alternaria sect. Alternaria contains most of the small-spored Alternaria species with concatenated conidia, including important plant, human and postharvest pathogens. Species within sect. Alternaria h...

The lipases have ability to catalyze diverse reactions and are important in different biotechnological applications. The aim of this work was to isolate and characterize microorganisms that produce lipases, from different food industry effluents localized in Pelotas, RS/Brazil. Bacteria were identified using Gram stain and biochemical tests (Vitek 2(r)). Fungi were identified according to macro...

El estudio fue realizado con el propósito de identificar la micoflora asociada semilla amaranto (Amarantus hypochondriacus L.) y determinar si Macrophoma sp. es transmitido por esta vía ya que en regiones productoras se presenta forma epifitia manera enfítica existe evidencia patógeno semilla. En proveniente siembras comerciales cosechadas 1995, Tlaxcala, México, evaluó incidencia los patógenos...

Since 1999, a disease of apple caused by an Alternaria sp. has been affecting orchards in northern Italy resulting in necrotic spots on leaves and on fruit. Forty-four single-spored isolates were obtained from diseased plant materials to investigate the diversity of this fungus in Italy and to compare these isolates to isolates of Alternaria associated with apple disease in previous studies, in...

Waste cobs from variously processed (premature, uncooked, roasted, cooked salted, cooked unsalted) maize (Zea mays) were used as raw materials to prepare growth agar media for six moulds: Rhizopus nigricans, Aspergillus niger, Trichoderma viride, Alternaria tenuis, Fusarium sp, Penicillium sp. and one yeast: Debaryomyces sp. All the formulated media supported the growth of the microorganisms te...

The air of animal dwellings can contain great amounts of bioaerosol composed of dust, bacteria, fungi, and endotoxins. The composition may depend on animal species, building construction, animal accommodation, and microclimate parameters, to name just a few factors. Pathogens contained may be a serious threat to animal and human health.The aim of our study was to analyse the fungi aerosol conte...

sugar beet roots and attached soil are usually transferred to sugar factories for processing ,then the roots are washed by pressurized water. muddy water as waste flows in canal and is used to irrigate fields. the possibility of occurrence and fluctuations of the pathogenic organisms in waste were studied in 2005. the samples were collected from waste water once a week. isolation of pathogens w...