| new species of aspergillus producing sterigmatocystin. | a number of species belonging to the genus aspergillus were evaluated for their toxicity to ducklings and the ability to produce sterigmatocystin. three new species capable of producing sterigmatocystin were found, namely, aspergillus aurantio-brunneus, aspergillus quadrilineatus, and aspergillus ustus. all three were toxic to ducklings. the production of sterigmatocystin by aspergillus rugulosus was confirmed, and the toxicity of aspergillus stellatus and aspergillus multicolor is described. | 1977 | 406838 |
| aspergillus quadrilineatus, a new causative agent of fungal sinusitis. | aspergillus quadrilineatus was found to be the etiologic agent of pansinusitis in a patient suffering from acute nonlymphoblastic leukemia and who had undergone allogeneic bone marrow transplantation. a. quadrilineatus was cultured from biopsy specimens of the maxillary sinus, and tissue sections with fungal stains showed a necrotic area containing dichotomously branching septate hyphae, which is morphologically consistent with aspergillus species. the patient was successfully treated with a com ... | 1992 | 1452721 |
| thermophilic and thermotolerant fungi of animals' hair. | nine thermophilic genera and 17 species in addition to one variety of aspergillus flavus, malbranchea pulchella and humicola grisea were collected from hair samples in riyadh, saudi arabia at 45 degrees c. fifty-one hair specimens of rabbit, sheep, camel and horse were examined for the presence of thermophilic fungi. the most frequent species were aspergillus fumigatus, aspergillus niger, thermoascus aurantiacus and malbranchea pulchella var. sulfurea. in low frequency, aspergillus flavus, asper ... | 1991 | 1805498 |
| acute toxicity of crude extracts of aspergillus quadrilineatus isolated from acha (digitaria exilis stapf). | in a survey of fungi and mycotoxin conterminating acha (digitaria exilis stapf) in plateau state of nigeria, 96 fungal isolates were made. screening of the fungi isolates for their mycotoxin-producing potentials showed that aspergillus quadrilineatus (thom and raper) produced some of the most toxic mycotoxins. two extracts of the aspergillus quadrilineatus (the petroleum ether soluble extracts [per] and the petroleum ether defatted crude extract [pedcr]) were tested for acute toxicity in mice, c ... | 1991 | 2017862 |
| chemistry and inhibitory activity of long chain fatty acid oxidation of emeriamine and its analogues. | emericedins a, b, and c, new betaines having inhibitory activity of long chain fatty acid oxidation, were isolated from the culture broth of emericella quadrilineata ifo 5859. their structures were determined by spectroscopic analyses as (r)-3-(acylamino)-4-(trimethylammonio)butyrate (acyl: a, acetyl; b, propionyl; c, n-butyryl). structural confirmation and assignment of absolute configuration were made by chemical synthesis from l-asparagine. deacylation of emericedin gave a potent derivative, ... | 1987 | 3612690 |
| isoprenoid phenol and quinone precursors of ubiguinones and dihydroubiguinones (ubiguinones (h 2 )) in fungi. | 1. ten moulds and two yeasts were analysed for the presence of 2-polyprenylphenols, 2-polyprenyl(h(2))phenols, 6-methoxy-2-polyprenylphenols, 6-methoxy-2-polyprenyl(h(2))phenols, 6-methoxy-2-polyprenyl-1,4-benzoquinones, 6-methoxy-2-polyprenyl(h(2))-1,4-benzoquinones, 5-demethoxyubiquinones, 5-demethoxyubiquinones(h(2)), ubiquinones and ubiquinones(h(2)). 2. the organisms were found to be of three types: (a) those that contained only ubiquinones (aspergillus fumigatus and penicillium brevi-compa ... | 1971 | 5166547 |
| isolation, purification, toxicity and some physicochemical properties of mycotoxins produced by aspergillus quadrilineatus isolated from acha (digitaria exilis stapf) in plateau state of nigeria. | some physico-chemical and toxicological studies were carried out on mycotoxins elaborated by aspergillus quadrilineatus isolated from a grain foodstuff, acha (digitaria exilis) in the plateau state of nigeria. the mycotoxins produced by a quadrilineatus were extractable from rice culture by chloroform. column chromatographic separations of the crude extract in silica gel using different elution solvents and biological tests showed that the mycotoxins came off in the diethylether, chloroform and ... | 1993 | 8351790 |
| studies in the biochemistry of micro-organisms. 102. quadrilineatin (1:2-diformyl-5-hydroxy-3-methoxy-4-methylbenzene), a metabolic product of aspergillus quadrilineatus thom & raper. | | 1957 | 13471526 |
| studies in the biochemistry of micro-organisms. 94. the colouring matters of species in the aspergillus nidulans group. i. asperthecin, a crystalline colouring matter of aspergillus quadrilineatus thom & raper. | | 1955 | 14363122 |
| onychomycosis due to emericella quadrilineata. | nondermatophytic fungi are increasingly being reported as etiological agents of onychomycosis. we describe here a case of hand nail infection caused by emericella quadrilineata (anamorph aspergillus tetrazonus), a species not so far known to be an etiological agent of onychomycosis. | 2004 | 14766889 |
| nine constituents including six xanthone-related compounds isolated from two ascomycetes, gelasinospora santi-florii and emericella quadrilineata, found in a screening study focused on immunomodulatory activity. | five metabolites tentatively called gs-1 (1)-5 (5) from gelasinospora santi-florii, and four tentatively called eq-4 (6), eq-6 (7)-8 (9) together with 1-4 from emericella quadrilineata have been isolated in a screening study on immunomodulatory fungal constituents. among these nine metabolites, eq-7 and 8 have been unknown. this time, the structures of gs-4 which has previously been isolated, eq-7, and -8 have been determined to be (4r,4as,9ar)-1,9a-dihydronidulalin a (4), (4s,4ar,9ar)-4a-carbom ... | 2006 | 16595963 |
| emericella quadrilineata as cause of invasive aspergillosis. | we noted a cluster of 4 cases of infection or colonization by emericella spp., identified by sequence-based analysis as e. quadrilineata. sequence-based analysis of an international collection of 33 emericella isolates identified 12 as e. nidulans, all 12 of which had previously been identified by morphologic methods as e. nidulans. for 12 isolates classified as e. quadrilineata, only 6 had been previously identified accordingly. e. nidulans was less susceptible than e. quadrilineata to amphoter ... | 2008 | 18394273 |
| antibiotic activity of aspergillus quadrilineatus extracts isolated from a nigerian cereal. | aspergillus quadrilineatus , isolated from the nigerian cereal "acha", demonstrated antibiotic activity in both static and submerged cultures of a variety of fungal and bacterial species of clinical importance. the time-course for the induction of antibiotic activity was determined, as well as the effects of different carbon sources, ph, temperature and bivalent cations. | 2000 | 21214441 |
| a rare case of onychomycosis caused by emericella quadrilineata (aspergillus tetrazonus). | onychomycosis is a common chronic nail disorder where dermatophytes are the predominant pathogens. however, non-dermatophytic moulds like aspergillus can also be implicated as the causative agents. herein, we report a rare case of onychomycosis due to emericella quadrilineata ( aspergillus tetrazonus) in an apparently immunocompetent host. | 2015 | 25865995 |