| effect of ph on the enzymic activity of the fungi trichothecium roseum and aspergillus niger hydrolyzing nonstarch polysaccharides. | the purpose of the study was to determine optimal ph values for the enzymic activity of the fungi trichothecium roseum and aspergillus niger hydrolyzing nonstarch polysaccharides of barley and disrupting cell walls (cytolysis) of grain, the so called cytolytic enzymes. the effect of the acidity of the medium on the stability of these enzymes was also investigated. in this connection total cytolytic activity (i. e. total activity of the enzymes hydrolyzing nonstarch polysaccharides of cell walls ... | 1975 | 1722 |
| [effect of protein synthesis inhibitors on the growth and biosynthetic activity of trichothecium roseum]. | the effect of inhibitors of protein synthesis on growth was studied with trichothecium roseum producing thichothecin and fibrinolytic enzymes. levomycetin, acridine orange and polymyxin inhibited the biomass accumulation, the growth rate, and the biosynthesis of fibrinolytic enzymes, particularly at the early stages of fungal growth. this effect was found either when the substances were added at the same time as the mycelium was inoculated, or when they were introduced 24 hours after the beginni ... | 1979 | 91942 |
| [fractionation of a preparation of fibrinolytic enzymes "tricholysin" formed from trichotecium roseum lk. ex fr. on carboxymethyl-sephadex c-50]. | a preparation of fibrinolytic enzymes that produced a specific effect on blood fibrinolysis in animals was isolated from the culture liquid filtrate of the fungus trichothecium roseum. by gel filtration on km-sephadex g-50 six fractions differing in their fibrinolytic, esterase and caseinolytic activities were obtained. the most effective fibrinolytic agents were the first and fourth fractions that had high fibrinolytic and esterase activities and a low caseinolytic activity. | 1976 | 136654 |
| purification and characterization of roseotoxin b, a toxic cyclodepsipeptide from trichothecium roseum. | | 1975 | 237028 |
| studies in terpenoid biosynthesis. part 19. formation of pimara-8(9),15-diene by trichothecium roseum. | | 1977 | 557055 |
| volatile constituents of trichothecium roseum. | in the course of investigation of trichothecium roseum (fungi imperfecti) for its attractancy against tyrophagus putrescentiae (cheese mite), the twenty following volatile compounds produced at a very low concentration by the microfungus were identified by gc, gc/ms, gc/c.i.ms and tlc: 3-methyl-1-butanol, 3-octanone, 1-octen-3-one, 3-octanol, octa-1,5-dien-3 one, 1-octen-3-ol, 6-methyl-5-hepten-2-ol, octa-1,5-dien-3 ol, furfural, linalool, linalyl acetate, terpineol (alpha and beta) citronellyl ... | 1978 | 567852 |
| [effect of polyploidogenic factors on trichothecium roseum mycelium in the process of trichothecine and fibrinolytic enzyme biosynthesis]. | the effect of colchicine and boric acid on the substrate mycelium of trichothecium roseum was studied in the course of trichothecin biosynthesis. addition of boric aicd (0.01%) and colchicine (0.1%) to the medium for biosynthesis increased the antibiotic activity of the fungus, this being due to the specific effect of polyploidogenous factors on growth of the mycelium and the proportion of nuclei in it. the number of nuclei increased in cells of the substrate mycelium correlating with a higher a ... | 1979 | 571512 |
| cis-and trans-octa-1,5-dien-3-ol, new attractants to the cheese mite tyrophagus putrescentiae (schrank) (acarina, acaridae) idintified in trichothecium roseum (fungi imperfecti). | the volatile materials emitted by trichothecium roseum (fungi imperfecti) at a very low concentration are strong attractants for tyrophagus putrescentiae (schrank, 1781) (acarina, acardae). the identification of cis- and trans-octa-1,5-dien-3-ol, the main attractant constituents of these volatile materials, was performed by spectroscopic methods (gc/ms and nmr) on a microsample (less than 100 micrograms) isolated by a new pre-concentration method. although this unsaturated alcohol has only been ... | 1978 | 756955 |
| [natural variability of trichothecium roseum]. | | 1977 | 859456 |
| [effect of colchicine and other polyploidogenic factors in contact with the deep vegetative mycelium of the fungus trichothecium roseum--producer of the antibiotic trichothecin and proteolytic enzymes]. | colchicine, boric acid, and camphor were used to produce viable cultures of trichothecium roseum actively producing the antibiotic, by treating the submerged vegetative mycelium of the fungus with these compounds. colchicine (0.5--1.0%), boric acid (0.25--2.00%), and camphor (0.25--1.50%) were added to the nutrient medium before it was inoculated with conidia or vegetative mycelium; later, the submerged mycelium was transferred to slanted agar. the cultures were characterized by a high number of ... | 1977 | 870805 |
| [development and differentiation of mycelium of trichothecium roseum in submerged culture]. | ontogenesis of trichothecium roseum during biosynthesis of trichothecin was studied during submerged cultivation on maize and synthetic media. growth of the fungus is polycyclic; several generations of the submerged mycelium develop from the submerged conidia on the maize medium, and from the submerged conidia, chlamydospores and budding mycelium on the synthetic medium. differentiation of the mycelium favours biosynthesis of the antibiotic. the nuclei in the cells of the submerged mycelium diff ... | 1976 | 1034193 |
| [morphogenetic action of trichothecin on trichothecium roseum]. | trichothecin and some conditions of cultivation, especially high concentrations of carbon favour differentiation of the submerged mycelium of trichothecium roseum, i.e. formation of submerged conidia, bud forming cells, chlamidospores, chains of barrel-shaped cells capable of germination and development of new generations of the submerged mycelium. biosynthesis of trichothecin is connected with growth of these generations of the mycelium which are characterized by a high dehydrogenase activity. ... | 1976 | 1034866 |
| qualitative and quantitative assay of trichothecin: a mycotoxin produced by trichothecium roseum. | a method for quantitative determination of trichothecin in crude culture filtrates was presented. the method utilized an agar diffusion bioassay against candida albicans, a colorimetric test involving a halochromatic reaction with sulfuric acid, and subsequent formation of blue color with methanol, and thin-layer chromatography of trichothecin and its dinitrophenylhydrazine derivative. a positive result in all three systems confirmed the presence of trichothecin. quantitative results were genera ... | 1975 | 1096818 |
| [trichothecene inactivation by proteolytic enzymes from trichothecium roseum lk ex fr]. | trichothecium roseum lk ex fr produces simultaneously trichothecin and proteolytic enzymes possessing fibrinolytic, thrombolytic and esterase activity. in addition to the function of splitting and consuming the substrate, the proteolytic enzymes of t. roseum are probably able to hydrolize the other bond in the molecule of trichothecin, which results in partial inactivation of the antibiotic in both the fungus culture and the model experiment on trichothecin contact with the preparations of the p ... | 1975 | 1225182 |
| [morphological and biosynthetic activity of trichothecium roseum in relation to the polynuclear conidia of the fungus]. | the effect of the number of the nuclei on the morphological and synthetic variability was studied with the conidia of trichothecium roseum. treatment of suspensions of the conidia with 0.5--1.0 percent solutions of colchicine during two hours increased the number of the nuclei in the conidia, induced the formation of giant colonies, and augmented the ability to produce antibiotics. no reliable differences have been found in the levels of proteolytic activity between the control strains and the s ... | 1975 | 1237076 |
| [campaign against allergenic moulds in dwellings. inhibitor properties of essential oil of geranium 'bourbon', citronellol, geraniol and citral]. | many fungal airborne spora show allergenic effects. indoor (dwelling, work rooms, hospital chambers) can be disinfected by elimination of living particles. we have undertaken experiments in more and more spacious bulks for evaluation of the antifungal effects of vapours of essential oils and some volatiles compounds. results show that the mucorales and geotrichum resist strongly. on the contrary, the cladosporium strains, some aspergillus and penicillium, trichothecium roseum are the most sensit ... | 1992 | 1290385 |
| selective effect of trichotecolone on hemopoietic tumor cells. | the effects of trichothecolone, a mycotoxin produced by the mould trichothecium roseum, were tested at graded concentrations (50 to 250 micrograms/ml) on the in vitro growth of human and murine normal (cfu-gm, iarc 171, fdc-p2) and tumoral (hl60, p388, l1210) hemopoietic cells. a selective cytotoxicity towards tumor cells was observed: an irreversible, concentration dependent inhibition of growth being seen on all tumor cell lines under consideration, while normal cells appeared to be rather ins ... | 1990 | 2382972 |
| isolation of fungi from local bread of chhindwara. | in the present paper, fungi isolated from bread samples are being reported. out of 150 samples of bread, only 20 samples appeared to be infected but when cultured all the samples could not give positive results, except, a. fumigatus. ten fungi including aspergillus fumigatus, a. niger, a. flavus, a. glaucous, a. carnous, a. terreus, a. ochraceous, rhizophus stolonifer, trichoderma harrianua, and trichothecium roseum were recovered from the bread samples. among these a. fumigatus and a. niger wer ... | 1990 | 2391152 |
| [significance of toxic metabolites of the fungus trichothecium roseum link ex fr. for viticulture]. | the plant-pathogen fungus trichothecium roseum produces in vitro as well as in vivo the toxic metabolites trichothecin, trichothecolone and rosenonolactone. trichothecin is cytotoxic and inhibits the alcoholic fermentation. it is not metabolized by yeast during the alcoholic fermentation. all toxins showed a minor biological activity against microorganisms other than yeast. trichothecin caused a bitter taste in wine at higher toxin concentrations (greater than 5 mg/l). trichothecin was detected ... | 1989 | 2763715 |
| crystal and molecular structure of destruxin b. | the cyclic hexadepsipeptide mycotoxin destruxin b, produced by metarrhizium anisopliae, crystallizes in the orthorhombic space group p212121, with a = 11.010(2)a, b = 14.679(5)a, c = 21.273(7)a and z = 4. the structure was solved by direct methods and refined by least-squares technique to a final unweighted r value of 0.051, for 3361 reflections with i greater than 3 sigma (i). the backbone of the peptide is asymmetric and is made of 5 trans peptide and ester units and 1 cis peptide unit. the ba ... | 1988 | 3366552 |
| the relationship between trichothecium roseum and aspergillus parasiticus and the production of aflatoxins. | | 1986 | 3813899 |
| [use of a column chromatographic method for obtaining a thrombolytic preparation from the culture broth of the fungus trichothecium roseum]. | | 1985 | 3884435 |
| [synthesis of sesquiterpene metabolites in a trichothecium roseum culture]. | during the cultivation trichothecium roseum forms biologically active sesquiterpenes in particular trichothecin and trichothecolon. the quantitative ratio of these compounds in cultural liquid changes depending on the cultivation conditions. the compounds taking part in terpenoids shant specifically increase the synthesis of sesquiterpenes in fungus culture. a possibility of intertransformation of different trichothecenes provides the stability of the fungus-producent to its toxical metabolites. ... | 1985 | 4040776 |
| [trikhothecin effect of fungi imperfecti trichothecium roseum lk es fr producing antifungal antibiotic trichothecin]. | | 1973 | 4764219 |
| [formation of carotenoid pigments by the imperfect fungus trichothecium roseum lk. ex fr]. | | 1973 | 4765682 |
| [fibrinolytic and antibiotic activity of trichothecium roseum lk. ex fr. during submerged cultivation]. | | 1973 | 4808025 |
| [development of trichothecium roseum lipids during initial stages of growth as a function of carbon nutritive source]. | | 1969 | 4981354 |
| [studies on the metabolite of trichothecium roseum link. structure of rosein 3]. | | 1971 | 5170010 |
| toxigenicity of trichothecium roseum link: isolation and partial characterization of a toxic metabolite. | | 1969 | 5392730 |
| [study of the nuclei in mycelium and conidia of trichothecium roseum link]. | | 1969 | 5401114 |
| [effect of vitamins on growth and development of different strains of trichothecium roseum link--producer of antibiotic trichotezin]. | | 1970 | 5463134 |
| biological effects of toxic products from trichothecium roseum link. | | 1970 | 5466031 |
| [heterokaryon nature and germination ability of conidia in relation to variability of trichothecium roseum]. | | 1970 | 5531217 |
| [fibrinolytic activity of trichothecium roseum link]. | | 1968 | 5754507 |
| antiviral activity in plants of a mycoviral double-strained rna from trichothecium roseum. | hexagonal virus-like particles (vlps) measuring 45 nm across were detected in mycelial extracts from trichothecium roseum himachal strain, the source fungus for the production of t-poly (trichothecium polysaccharide), a known inhibitor of plant viruses. vlps were found to contain double-stranded rna (ds rna) and the purified ds rna was capable of inhibiting tobacco mosaic virus infection in nicotiana glutinosa plants. active preparations of t-poly were found to contain traces of ds rna, probably ... | 1981 | 6120644 |
| [biosynthesis of tricholysine, a fibrinolytic enzyme complex, in submerged culture of the saprophytic fungus trichothecium roseum]. | | 1983 | 6352392 |
| [anticoagulating properties of fungal proteases tricholysine (triase) and longolytin]. | tricholysine (triase) and longolytin, isolated from cultural fluid of two similar lower fungi trichothecium roseum and arthrobotrys longa, exhibited anticoagulant and fibrinolytic properties after addition to blood plasma of experimental animals. intravenous administration of the enzymes into animals caused the following effects: an increase in fibrinolytic activity, a slight decrease of fibrinogen concentration, an inadequate elongation of recalcification time and of thrombin time. analysis of ... | 1984 | 6396943 |
| observations on the chemical composition of trichothecium roseum link determined by x-ray microanalysis and by laser microscopy. | in order to increase our understanding of pathogenic fungi for humans, small pieces extracted from trichothecium roseum link were studied, on the one hand, by x-ray microanalysis and, on the other hand, by laser microscopy. the application of these techniques in medical mycology provides further evidence that they can be used to characterize some elements of mendeleev's classification. | 1983 | 6685814 |
| [patterns of the directed biosynthesis of trichothecin and fibrinolytic enzymes in trichothecium roseum]. | the production of the antibiotic trichothecin and of fibrinolytic enzymes was studied in the culture of the fungus trichothecium roseum. correlations were established between the parameters for the biosynthesis of trichothecin and fibrinolytic enzymes and the growth rate of the fungus. thease as well as certain ratios found between potassium nitrate and ammonium chloride in the growth medium made it possible to use the function of desirability and to synthesize preferentially either trichothecin ... | 1980 | 6993881 |
| [effect of the nutrient medium components on cytolytic enzyme biosynthesis by the fungus, trichothecium roseum, in production]. | | 1980 | 7189814 |
| laboratory evaluation of fungicides for the control of trichothecium roseum link. a new fruit rot pathogen of sweet orange. | | 1981 | 7198107 |
| [origin of the pinkish coloration of rye grain]. | the grain requires pink coloration while in the fields during grain ripening in the stage of picking maturity with this coloration being absent in the stage of gold ripeness. of the microorganisms that form pink, red or orange pigments, fusarium, trichothecium roseum and epicoccum, were detected to reveal high degree of fungal affection, particularly with fusarium, of freshly harvested pink-colored grain and grain in the stage of gold ripeness during rainy and cool summer. it was demonstrated th ... | 1982 | 7201209 |
| use of spectrocolorimetry for study of lipid consumption by trichothecium roseum. | studies were carried out by means of spectrocolorimetry in order to determine the consumption of total lipids in cultures of trichothecium roseum. this technique has the advantage of requiring very little specimen preparation. | 1994 | 8041295 |
| mechanism of resistance to the antibiotic trichothecin in the producing fungi. | trichothecium roseum, an imperfecti fungus producer of the translation inhibitor trichothecin, is constitutively resistant to its product. fusarium oxysporum, a fungi not described as a toxin producer, is sensitive to trichothecin but becomes resistant when grown in the presence of the drug. in both cases, the resistance occurs at the level of the ribosomes. in cell-free polypeptide polymerization systems, trichothecin resistance is associated with the presence of 60s subunits from the resistant ... | 1994 | 8055913 |
| two novel microbial conversion products of progesterone derivatives. | two novel microbial steroid hydroxylations were found in a screening of 131 microorganisms under aerobic conditions. 17 alpha-hydroxyprogesterone was hydroxylated in the 8 beta-position by corynespora melonis cbs 16260, and fermentation of 17 alpha-acetoxyprogesterone with pycnosporium species atcc 12231 yielded 11 beta-hydroxy- and 11 beta, 12 beta-dihydroxy-17 alpha-acetoxyprogesterone. the known 11 beta-hydroxy compound could be obtained as a single product with trichothecium roseum atcc 1251 ... | 1993 | 8212074 |
| screening of fungi for the presence of the trichodiene synthase encoding sequence by hybridization to the tri5 gene cloned from fusarium poae. | a trichodiene synthase gene (tri5) was amplified from f. poae by polymerase chain reaction using synthetic primers constructed on the basis of the coding portion of the same gene from f. sporotrichioides. sequence analysis showed a high degree of similarity with other trichodiene synthase genes. a 378 bp hindiii fragment of the gene that contains the genetic information for the putative active site of the trichodiene synthase enzyme was radiolabelled and used for dot blot analysis. this probe co ... | 1997 | 9433809 |
| roseocardin, a novel cardiotonic cyclodepsipeptide from trichothecium roseum tt103. | a new cyclodepsipeptide, designated roseocardin, was isolated from the culture broth of trichothecium roseum tt103. roseotoxin b and destruxins a and b were also isolated during the same procedure. the structure of roseocardin was determined by ei-ms, nmr and x-ray crystallographic analysis. roseocardin as well as the other cyclodepsipeptides were shown to produce positive inotropic effects on rat heart muscles. | 1997 | 9510906 |
| rapid screening of destruxins by liquid chromatography/mass spectrometry. | a liquid chromatographic/mass spectrometric (lc/ms) method utilizing an atmospheric pressure chemical ionization (apci) interface and in-source collisionally induced dissociation (cid) was developed for the rapid screening of the cyclic hexadepsipeptides destruxins, produced by the fungi metarhizium anisopliae and trichothecium roseum. the apci mass spectra are fully consistent with the high-energy cid data but the sequence ions are abundant over the whole mass range. in addition to 22 known des ... | 1998 | 9538526 |
| a 4-year study of the mycological aspects of kashin-beck disease in tibet. | in order to clarify the association between mycotoxin-producing fungi in food and kashin-beck disease (kbd), we examined the occurrence and contamination levels of fungi in samples of barley grain, from kbd-affected families and from unaffected families in endemic areas. a control area without the occurrence of kbd served as reference. the first results obtained in 1995 showed that total mesophilic fungal contamination of barley grain was consistently higher in families with kbd. trichothecium r ... | 2001 | 11482530 |
| antifungal activity of bacillus sp. isolated from compost. | four strains of bacillus isolated from lupine compost exhibited an antifungal activity against six plant fungal pathogens (rhizoctonia solani, bipolaris sorokiniana, sclerotinia sclerotiorum, trichothecium roseum, fusarium solani, fusarium oxysporum). it was significantly influenced by the composition of the cultivation media. | 2000 | 11501422 |
| microbial transformation of (+)-adrenosterone. | the microbial transformation of (+)-adrenosterone (1) by cephalosporium aphidicola afforded three metabolites identified as androsta-1,4-diene-3,11,17-trione (2), 17beta-hydroxyandrost-4-ene-3,11-dione (3) and 17beta-hydroxyandrosta-1,4-diene-3,11-dione (4). the fermentation of 1 with fusarium lini also produced metabolites 2 and 4, while the fermentation with trichothecium roseum afforded metabolite 3. the structures of transformed products were determined by spectroscopic methods. | 2002 | 12434991 |
| profiling of cyclic hexadepsipeptides roseotoxins synthesized in vitro and in vivo: a combined tandem mass spectrometry and quantum chemical study. | high-performance liquid chromatography and tandem mass spectrometry (hplc/ms/ms) was used for the detection of cyclic hexadepsipeptides roseotoxins produced by trichothecium roseum. roseotoxins were found in both submerged standard cultivation on czapekdox medium and in vivo cultivation extract obtained from an apple. roseotoxin chromatographic profiles from these two experiments were compared. product-ion collision-induced dissociation (cid) spectra obtained on an ion trap (electrospray ionisat ... | 2003 | 12748394 |
| cancer preventive potential of trichothecenes from trichothecium roseum. | bioassay-guided separation of extracts from the culture broth and mycelium of the fungus trichothecium roseum, aiming at the discovery for cancer preventive agents, resulted in the isolation of three new trichothecene sesquiterpenes, trichothecinols a-c (1-3) together with three known analogues, trichothecin (4), trichodermol (5) and trichothecolone (6). compounds 1-6 exhibited remarkably potent inhibition against epstein-barr virus early antigen (ebv-ea) activation induced by the tumor promoter ... | 2003 | 12757719 |
| release and regeneration of protoplasts from the fungus trichothecium roseum. | a protocol for isolating and regenerating protoplasts from trichothecium roseum has been described. protoplasts from t. roseum were isolated using (i) a lytic enzyme combination composed of novozym 234, chitinase, cellulase, and pectinase at a 5-mg/ml concentration and (ii) 0.6 m kcl as an osmotic stabilizer. a maximum number of 28 x 10(4) protoplasts/ml were obtained at ph 5.5. experiments on the regeneration and reversion of protoplasts revealed a maximum regeneration (60.8%) in complete mediu ... | 2003 | 12897835 |
| the nature and behaviour of inhibitors of plant viruses produced by trichothecium roseum link. | | 1952 | 13011267 |
| [demonstration of a mucilage in the wall of spores of trichothecium roseum link ex fr]. | | 1957 | 13427209 |
| [preparation of protoplasts from spores of trichothecium roseum]. | | 1963 | 14091940 |
| [influence of the nature of the nitrogenous nutritive source on the growth of adelomycetes. v. influence of the nitrogenous nutritive on glucose consumption by trichothecium roseum (pers.) link, during growth]. | | 1964 | 14234601 |
| [effect of the carbohydrate and nitrogen composition of the culture medium on the hemicellulase activity of trichothecium roseum]. | | 1964 | 14336845 |
| further biological properties of trichothecin, an antifungal substance from trichothecium roseum link, and its derivatives. | | 1955 | 14367744 |
| [influence of the nature of nitrogen nutrition sources on the growth of trichothecium roseum (pers.) link]. | | 1961 | 14482179 |
| [sporogenesis in trichothecium roseum (persoon) link]. | | 1952 | 14936298 |
| purification and partial characterization of a chitinase from the mycoparasitic fungus trichothecium roseum. | | 2004 | 15057709 |
| inactivation of fungi in vitro by photosensitization: preliminary results. | photosensitization is based on the interaction of 2 completely non-toxic agents--a photosensitizer, accumulated in microorganisms, and visible light. this interaction induces radical-based cytotoxic reactions in the presence of oxygen. the photosensitization phenomenon is widely involved in the treatment of tumors in oncology, in curing arthritis and atherosclerosis. in this work, the possibility to inactivate pathogenic and harmful fungi by photosensitization is shown. a new treatment methodolo ... | 2004 | 15627327 |
| mycotoxin-producing and other fungi isolated from grapes for wine production, with particular emphasis on ochratoxin a. | mycotoxins are toxic secondary metabolites produced by filamentous fungi that have been detected in food commodities, including grapes and wine. a survey was conducted to assess mycotoxin-producing fungi in grapes destined for wine production. the mycotoxigenic capacity of the isolates was tested in culture media. grapes were analyzed by plating methods from 4 portuguese wine-growing regions at 3 maturation stages (pea berry, early veraison and ripe berry) between 2001 and 2003. from the 10,602 ... | 2005 | 15862450 |
| occurrence of trichothecin in wheat. | trichothecin, a toxic metabolite of trichothecium roseum, was detected in 3 of 13 wheat samples examined at levels of 560, 290, and 270 ng/g. in addition, all the t. roseum isolates from the wheat produced the toxin on wheat. | 1986 | 16347131 |
| scanning electron and light microscopic study of microbial succession on bethlehem st. nectaire cheese. | st. nectaire cheese is a semisoft cheese of french origin that, along with brie and camembert cheeses, belongs to the class of surface mold-ripened cheese. the surface microorganisms that develop on the cheese rind during ripening impart a distinctive aroma and flavor to this class of cheese. we have documented the sequential appearance of microorganisms on the cheese rind and in the curd over a 60-day ripening period. scanning electron microscopy was used to visualize the development of surface ... | 1992 | 16348797 |
| microbial o-demethylation, hydroxylation, sulfation, and ribosylation of a xanthone derivative from halenia elliptica. | 1-hydroxy-2,3,5-trimethoxyxanthone (1), one of the major xanthone derivatives isolated from halenia elliptica, was biotransformed by two fungi, trichothecium roseum and paecilomyces marquandii. transformation of 1 by t. roseumgave 1,5-dihydroxy-2,3-dimethoxyxanthone (2), 5-o-sulfate-1-hydroxy-2,3-dimethoxyxanthone (3), 5-o-sulfate-1-hydroxy-2,3,7-trimethoxyxanthone (4), 5-o-beta-ribofuranosyl-1-hydroxy-2,3-dimethoxyxanthone (5), and 1,5,6-trihydroxy-2,3-dimethoxyxanthone (6). compound 2 was also ... | 2006 | 16724847 |
| the isolation and chemical properties of trichothecin, an antifungal substance from trichothecium roseum link. | | 1949 | 16748467 |
| metabolic products of trichothecium roseum link. | | 1949 | 16748611 |
| direct evidence of plant-pathogenic activity of fungal metabolites of trichothecium roseum on apple. | apples were exposed to various concentrations of roseotoxins - metabolites of trichothecium roseum and kinetic fluorescence imaging was used to detect the area influenced by the phytotoxin. contrast was quantified within these images between the areas exposed to roseotoxins and the untreated areas. it was proved that roseotoxin b is able to penetrate apple peel and produce chlorotic lesions. activity of roseotoxin b is similar as the activity of destruxins, host specific phytotoxins of alternari ... | 2006 | 16830194 |
| toxic micromycetes in grain raw material during its processing. | in 2003-2005 micromycetes were isolated and identified from wheat, barley, rye, buckwheat grain brought into mills or from processing enterprises. contamination of the produced flour with micromycete propagules (cfu g(-1)), changes in micromycete diversity and abundance in the course of flour storage, preparation and baking of bread, production of groats or other food products and fodder were determined. most attention was given to widely distributed micromycetes, known producers of toxins: alte ... | 2006 | 16841886 |
| characterization and biocontrol ability of fusion chitinase in escherichia coli carrying chitinase cdna from trichothecium roseum. | the antifungal mechanism of mycoparasitic fungi involves fungal cell wall degrading enzymes such as chitinases. trichothecium roseum is an important mycoparasitic fungus with significant antifungal ability, but studies on chitinases of t. roseum were poor. here, we report a novel chitinase cdna isolated from t. roseum by pcr amplification based on conserved chitinase sequences. southern blot analysis suggested that a single copy of the gene exists in the genome of t. roseum. the deduced open rea ... | 2006 | 16869499 |
| fusarium tri4 encodes a key multifunctional cytochrome p450 monooxygenase for four consecutive oxygenation steps in trichothecene biosynthesis. | fusarium tri4 encodes a cytochrome p450 monooxygenase (cyp) for hydroxylation at c-2 of the first committed intermediate trichodiene (tdn) in the biosynthesis of trichothecenes. to examine whether this cyp further participates in subsequent oxygenation steps leading to isotrichotriol (4), we engineered saccharomyces cerevisiae for de novo production of the early intermediates by introducing cdnas of fusarium graminearum tri5 (fgtri5 encoding tdn synthase) and tri4 (fgtri4). from a culture of the ... | 2007 | 17188234 |
| in vitro susceptibility to fungicides by invertebrate-pathogenic and saprobic fungi. | the effect of five fungicides, benomyl (1 mg/l), dodine (50 mg/l), manzate (100 mg/l), cupric sulphate (200 mg/l) and thiabendazole (4 mg/l) was tested under in vitro conditions on development of 15 isolates of fungi pathogenic for insects and other invertebrates (beauveria brongniartii, culicinomyces clavisporus, duddingtonia flagrans, hirsutella thompsonii, two metarhizium anisopliae, nomuraea rileyi, two isaria/paecilomyces spp., and sporothrix insectorum) and 13 isolates of contaminant fungi ... | 2007 | 17574540 |
| cross-reactivity of non-aspergillus fungal species in the aspergillus galactomannan enzyme immunoassay. | the aspergillus galactomannan enzyme-linked immunosorbant assay (eia) has been demonstrated to facilitate rapid and sensitive detection of invasive aspergillosis. however, test specificity has not been fully evaluated in non-aspergillus fungal species. of 53 fungal isolates, cross-reactivity was observed with 5 non-aspergillus spp.: blastomyces dermatitidis, nigrospora oryzae, paecilomyces lilacinus, penicillium chrysogenum, and trichothecium roseum. | 2007 | 17662550 |
| two crystalline mycelial constituents of trichothecium roseum link. | | 1948 | 18100007 |
| some biological properties of trichothecin, an antifungal substance from trichothecium roseum link. | | 1949 | 18126508 |
| the isolation and chemical properties of trichothecin, an antifungal substance from trichothecium roseum link. | | 1949 | 18127444 |
| metabolic products of trichothecium roseum link. | | 1949 | 18143273 |
| some metabolic products of trichothecium roseum link. | | 1948 | 18207789 |
| trichothecin; an antifungal metabolic product of trichothecium roseum link. | | 1948 | 18869687 |
| [cucumber diseases diagnosis using multispectral imaging technique]. | for a reliable diagnosis of plant diseases and insect pests, spectroscopy analysis technique and mutispectral imaging technique are proposed to diagnose five cucumber diseases, namely trichothecium roseum, sphaerotheca fuliginea, cladosporium cucumerinum, corynespora cassiicola and pseudoperonospora cubensis. in the experiment, the cucumbers' multispectral images of 14 visible lights channels, near infrared channel and panchromatic channel were captured using narrow-band multispectral imaging sy ... | 2009 | 19445229 |
| production of (r)-1-phenylethanols through bioreduction of acetophenones by a new fungus isolate trichothecium roseum. | a total of 120 fungal strains were isolated from soil samples and evaluated in the bioreduction of substituted acetophenones to the corresponding (r)-alcohols. among these strains, isolate trichothecium roseum ebk-18 was highly effective in the production of (r)-alcohols with excellent enantioselectivity (ee > 99%). gram scale preparation of (r)-1-phenylethanol is reported. | 2010 | 19743484 |
| [horticultural plant diseases multispectral classification using combined classified methods]. | the research on multispectral data disposal is getting more and more attention with the development of multispectral technique, capturing data ability and application of multispectral technique in agriculture practice. in the present paper, a cultivated plant cucumber' familiar disease (trichothecium roseum, sphaerotheca fuliginea, cladosporium cucumerinum, corynespora cassiicola, pseudoperonospora cubensis) is the research objects. the cucumber leaves multispectral images of 14 visible light ch ... | 2010 | 20384138 |
| [mycobiota of quercus robur l. from the oak forest in the zhytomyr region]. | different organs of 155 samples of conditionally healthy and sick oaks were examined for mycological contamination. the isolated microscopic fungi belonged to 129 species of different taxonomic groups. the pathogenic complex was represented by 30 fungi species, however most of these species were isolated in single cases. roots, wood, bast and bark were not affected by the phytopathogenic fungi species that can cause the death of the trees. mycobiota of branches and sprouts was similar to that of ... | 2009 | 20458934 |
| endophytic fungus trichothecium roseum lz93 antagonizing pathogenic fungi in vitro and its secondary metabolites. | the endophytic fungus trichothecium roseum lz93 from maytenus hookeri was found to antagonize other pathogenic fungi in vitro. to identify which compound contributed substantially to the antagonism, we fermented the strain and purified its fermentation products. eleven compounds were obtained, including two trichothecenes, five rosenonolactones, two cardiotonic cyclodepsipeptides, and two sterols. compound 11β-hydroxyrosenonolactone (1) was assigned according to 1d and 2d-nmr data for the first ... | 2010 | 21221935 |