| identity of fusarium nygamai isolates with long and short microconidial chains from millet, sorghum and soil in africa. | several fusarium species have been found associated with millet and sorghum in nigeria, lesotho and zimbabwe. amongst these, some isolates were originally identified as short- and long-chained types of f. nygamai. however, there was some question as to the correct identification of the long chained types. this study reclassified some of the isolates with long microconidial chains as f. moniliforme. morphologically, these strains do not produce chlamydospores like f. nygamai, but produce swollen ... | 1997 | 16284817 |
| less-frequent fusarium species of clinical interest: correlation between morphological and molecular identification and antifungal susceptibility. | forty-eight fusarium isolates morphologically identified as belonging to seven species of clinical interest (i.e., fusarium chlamydosporum, fusarium dimerum, fusarium incarnatum, fusarium napiforme, fusarium nygamai, fusarium proliferatum, and fusarium sacchari) were characterized molecularly by the analysis of the sequences of the tub region of the beta-tubulin gene. f. chlamydosporum and f. dimerum were the most genetically heterogeneous species. a high degree of correlation between the morpho ... | 2009 | 19321723 |
| fum cluster divergence in fumonisins-producing fusarium species. | fumonisins are polyketide-derived mycotoxins, produced by several fusarium species, and its biosynthetic pathway is controlled by the fum cluster--a group of genes exhibiting a common expression pattern during fumonisin biosynthesis. the most common are the b analogues with fumonisin b(1) (fb(1)) being the most prevalent. at least a part of the inter- and intraspecific variation in fbs synthesis level can be explained by the sequence differences inside fum cluster. the aim of our study was to ev ... | 2010 | 21315309 |
| morphological characteristics and pathogenicity of fungi associated with roselle (hibiscus sabdariffa) diseases in penang, malaysia. | roselle, or jamaica sorrel (hibiscus sabdariffa) is a popular vegetable in many tropical regions, cultivated for its leaves, seeds, stems and calyces which, the dried calyces are used to prepare tea, syrup, jams and jellies and as beverages. the main objectives of this study were to identify and characterise fungal pathogens associated with roselle diseases based on their morphological and cultural characteristics and to determine the pathogenicity of four fungi infecting roselle seedlings, name ... | 2011 | 21839160 |
| anti-fungal activity of cold and hot water extracts of spices against fungal pathogens of roselle (hibiscus sabdariffa) in vitro. | crude extracts of seven spices, viz. cardamom, chilli, coriander, onion, garlic, ginger, and galangale were made using cold water and hot water extraction and they were tested for their anti-fungal effects against the three roselle pathogens i.e. phoma exigua, fusarium nygamai and rhizoctonia solani using the 'poisoned food technique'. all seven spices studied showed significant anti-fungal activity at three concentrations (10, 20 and 30% of the crude extract) in-vitro. the cold water extract of ... | 2012 | 22138549 |
| evolution of fungal population and mycotoxins in sorghum silage. | silage, one of the most important feed sources for cattle, is vulnerable to contamination by spoilage moulds and mycotoxins because ensilage materials are excellent substrates for fungal growth. the aim of this study was to identify the mycobiota of sorghum silages, to determine the presence of aflatoxins and fumonisins, and to correlate these results with physical parameters of the silage. a total of 275 samples of sorghum were collected from dairy farms in the south-west region of uruguay were ... | 2016 | 27700537 |
| structural variation and dynamics of the nuclear ribosomal intergenic spacer region in key members of the gibberella fujikuroi species complex. | the intergenic spacer (igs) region of the ribosomal dna was cloned and sequenced in eight species within the gibberella fujikuroi species complex with anamorphs in the genus fusarium, a group that includes the most relevant toxigenic species. dna sequence analyses revealed two categories of repeated elements: long repeats and short repeats of 125 and 8 bp, respectively. long repeats were present in two copies and were conserved in all the species analyzed, whereas different numbers of short repe ... | 2013 | 23706073 |
| specific antifungal susceptibility profiles of opportunists in the fusarium fujikuroi complex. | the aim of the present study was to evaluate and assess the in vitro activity of eight drugs, including the new azole isavuconazole, against 81 strains representing 13 species of the fusarium fujikuroi species complex. | 2015 | 25538167 |
| ima genome-f 4: draft genome sequences of chrysoporthe austroafricana, diplodia scrobiculata, fusarium nygamai, leptographium lundbergii, limonomyces culmigenus, stagonosporopsis tanaceti, and thielaviopsis punctulata. | the genomes of chrysoporthe austroafricana, diplodia scrobiculata, fusarium nygami, leptographium lundbergii, limonomyces culmigenus, stagonosporopsis tanaceti, and thielaviopsis punctulata are presented in this genome announcement. these seven genomes are from endophytes, plant pathogens and economically important fungal species. the genome sizes range from 26.6 mb in the case of leptographium lundbergii to 44 mb for chrysoporthe austroafricana. the availability of these genome data will provid ... | 2015 | 26203426 |
| evaluation of the potential of trichoderma viride in the control of fungal pathogens of roselle (hibiscus sabdariffa l.) in vitro. | the potential of trichoderma viride as a bio-control agent was evaluated in vitro against roselle pathogens i.e. phoma exigua, fusarium nygamai and rhizoctonia solani[1] using the dual culture technique. volatile and non-volatile inhibitors of trichoderma were also evaluated for this purpose. t. viride[2] was shown to have a marked inhibitory effect on the tested pathogens in vitro. maximum inhibition occurred against p. exigua, with 71.76% reduction in mycelial radial growth. the three pathogen ... | 2012 | 22261114 |
| fusarium nygamai.a causal agent of root rot of vicia faba l. in the sudan. | wilted and rotted plants of vicia faba were received from different localities in the sudan. among several fusarium spp., fusarium nygamai was recovered. conspicuous symptoms were among others black root rot, associated with rot and death of the lateral root system. severely infected plants showed black neck canker at soil level. these symptoms were usually accompanied by loss of the leaves' turgor, these then turned brown and died. death of intact leaves also occurred. most of the strains prove ... | 2002 | 12701431 |
| degradation and transformation of a potential natural herbicide in three soils. | the methyl ester of fusaric acid (me) is one of four toxins produced by the fungus fusarium nygamai, which could be used as a natural herbicide against striga hermonthica, a parasitic weed of sorghum and corn in a vast zone of west and central africa. a laboratory study was performed to measure the degradation of me in three soil types and under different temperature and soil moisture conditions, so as to ascertain whether a single me treatment would protect the crops against this weed during th ... | 1999 | 10552741 |
| systemic fusarium nygamai infection in a patient with lymphoblastic non-hodgkin's lymphoma. | we report the case history of a 35-year-old male patient with lymphoblastic non-hodgkin's lymphoma who acquired a systemic infection with fusarium nygamai during the granulocytopenic phase of cytostatic treatment. the patient survived this infection after haematological recovery and treatment with intravenous amphotericin b (total dose 543 mg). subsequent chemotherapy courses were not complicated by fungal infections. a recent trip to egypt and severe chemotherapy-induced mucositis were probably ... | 2013 | 8767005 |
| toxicity and moniliformin production by four recently described species of fusarium and two uncertain taxa. | four recently described species. fusarium nygamai, f. dlamini, f. beomiforme and f. napiforme and two uncertain taxa, f. nygamai from millet in africa and fusarium species from rice with bakanae disease, were tested for toxicity and moniliformin production. cultures grown on autoclaved corn were fed to groups of four one-day-old ducklings for 14 days. isolates that caused the death of 3 or 4 out of 4 ducklings were considered to be toxic and analyzed for moniliformin. all 15 isolates of f. dlami ... | 1991 | 2067564 |