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1Author    Dagmar Busmann, RalfG. Ünter BergerRequires cookie*
 Title    Oxyfunctionalization o f a-and ß-Pinene by Selected Basidiomycetes  
 Abstract    Several strains of basidiom ycetes were examined for their ability to transform a-and ß-pinene in agitated submerged cultures. Four major metabolites of a-pinene (verbenol, ver-benone, myrtenol, and rrorcs-pinocarveol) and three main metabolites of ß-pinene (1,4-cineol, myrtenol, and rrarcs-pinocarveol) were isolated from the fermentation broth. The metabolic pathways included allylic oxidation, oxidative cleavage and further regioselective oxidation. G anoderm a applanatum was found to carry out the stereoselective allylic hydroxylation of a-pinene to verbenol, and o f ß-pinene to trans-pinocarveol in trans position to the C -C bridge. The optimal conditions of the bioreaction were established with respect to substrate concentration, incubation time and conversion time. D ue to growth inhibition caused by elevated substrate concentration, the bioconversion of ß-pinene required pre-grown cultures. Generally, mycelial pellet cultures were supplemented with the terpene substrate when a residual glucose content of 50% was reached. Depending on strain this point was reached after about 48 h. A n incubation period of two to three days gave best yields. The transient accumulation of oxygenated products apparently reflected different reaction velocities of the successive catabolic steps. 
  Reference    Z. Naturforsch. 49c, 545 (1994); received May 26/June 20 1994 
  Published    1994 
  Keywords    Pinene, Cineol, Basidiomycetes, Bioconversion, Transformation 
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 TEI-XML for    default:Reihe_C/49/ZNC-1994-49c-0545.pdf 
 Identifier    ZNC-1994-49c-0545 
 Volume    49 
2Author    Elisabeth Jägers, Elisabeth Hillen-Maske, Wolfgang SteglichRequires cookie*
 Title    Pilzfarbstoffe, 54 [1]  
 Abstract    Inhaltsstoffe von Boletopsis leucomelaena (Basidiomycetes): Klärung der chemischen Natur von "Leucomelon" und "Protoleucomelon" Fungal Pigments, 54 [1] Metabolites of Boletopsis leucomelaena (Basidiomycetes): Fruitbodies of the basidiomycete Boletopsis leucomelaena contain the leuco-peracetates of thelephoric acid and cycloleucomelone (3 and 4, respectively). The latter compound is accom­ panied by a series of analogues, containing five, four, and three acetyl residues. The properties of Akagi's " leucomelone" (1) and " protoleucomelone" (2) correspond to those of cycloleucomelone (7) and its leuco-peracetate 4. 
  Reference    Z. Naturforsch. 42b, 1349—1353 (1987); eingegangen am 30. März 1987 
  Published    1987 
  Keywords    Boletopsis leucomelaena, Basidiomycetes, Leucomelone, Protoleucomelone, Cycloleucomelone 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-1349.pdf 
 Identifier    ZNB-1987-42b-1349 
 Volume    42 
3Author    R. G. Berger, K. Neuhäuser, F. DrawertRequires cookie*
 Title    Biosynthesis of Flavor Compounds by Microorganisms 6. Odorous Constituents of Polyporus durus (Basidiomycetes)  
 Abstract    The neutral volatile constituents produced by shake flask cultured mycelium of Polyporus durus comprise aliphatic and aromatic alcohols, lactones and various carbonyl compounds, and sesquiterpenoids. The occurrence of five 2,3-unsaturated 4-olides (y-lactones), some of which were identified for the first time in nature, is characteristic of the fungus. The presence of a synthetic triglyceride in the nutrient medium strongly favors the formation of lactones and other volatile flavor compounds. 
  Reference    Z. Naturforsch. 41c, 963 (1986); received July 21 1986 
  Published    1986 
  Keywords    Polyporus durus, Basidiomycetes, Flavor, Lactones, Triglyceride 
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 TEI-XML for    default:Reihe_C/41/ZNC-1986-41c-0963.pdf 
 Identifier    ZNC-1986-41c-0963 
 Volume    41 
4Author    Klaus Leonhardt, Timm Anke, Elisabeth Hillen-Maske, Wolfgang SteglichRequires cookie*
 Title    6-Methylpurine, 6-Methyl-9-ß-D-ribofuranosylpurine, and 6-Hydroxymethyl-9-ß-D-ribofuranosylpurine as Antiviral Metabolites of Collybia maculata (Basidiomycetes) [1]  
 Abstract    6 -M eth y lp u rin e (1), 6-m eth yl-9-ß -D -rib ofu ran osylp u rin e (2) and 6 -h yd roxym eth yl-9-ß -D -rib o-fu ra n o sy lp u rin e (3) w ere isolated from m ycelial cu ltures o f Collybia maculata and their an tifu n gal, c y to to x ic and antiviral activities in v estig a ted . T h is is the first rep ort on th e natural o ccu rren ce o f th e se c o m p o u n d s. 
  Reference    Z. Naturforsch. 42c, 420 (1987); received November 5 1986 
  Published    1987 
  Keywords    Collybia maculata, Basidiomycetes, Nucleosides, 6-Methylpurine, Antiviral Activity 
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 TEI-XML for    default:Reihe_C/42/ZNC-1987-42c-0420.pdf 
 Identifier    ZNC-1987-42c-0420 
 Volume    42 
5Author    A. Stärk, T. Anke, A. Kirfel, G. WillRequires cookie*
 Title    Lentinellic Acid, a Biologically Active Protoilludane Derivative from Lentinellus Species (Basidiomycetes) [1]  
 Abstract    A new antimicrobial and cytotoxic sesquiterpenoid, lentinellic acid (1), has been isolated from submerged cultures of Lentinellus ursinus and L. omphalodes. The structure of the antibiotic was elucidated by spectroscopic methods and a single crystal X-ray analysis. 1 may be formed biogenetically by condensation of a protoilludane aldehyde 4 with a malonate unit. 
  Reference    Z. Naturforsch. 43c, 177—183 (1988); received October 16 1987 
  Published    1988 
  Keywords    Lentinellus, Basidiomycetes, Sesquiterpenoids, Protoilludanes, Lentinellic Acid, Antibiotics 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0177.pdf 
 Identifier    ZNC-1988-43c-0177 
 Volume    43 
6Author    Andreas Stärk, Timm Anke, Ursula Mocek, Wolfgang SteglichRequires cookie*
 Title    Omphalone, an Antibiotically Active Benzoquinone Derivative from Fermentations of Lentinellus omphalodes [1]  
 Abstract    Om phalone, a new antibiotic, cytotoxic, and phytotoxic pigment has been isolated from fer­ mentations o f a Canadian strain of Lentinellus omphalodes. Its structure has been established as 2-(4-methylfuran-2-yl)-l,4-benzoquinone (1) by spectroscopic investigations and conver­ sion into leuco-acetate 2. 
  Reference    Z. Naturforsch. 46c, 989—992 (1991); received February 6/July 20 1991 
  Published    1991 
  Keywords    Om phalone, Benzoquinone Derivative, Antibiotic, Lentinellus omphalodes, Basidiomycete 
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 TEI-XML for    default:Reihe_C/46/ZNC-1991-46c-0989.pdf 
 Identifier    ZNC-1991-46c-0989 
 Volume    46 
7Author    Kirsten Lorenzen, Timm Anke, Uwe Anders, H. Erm An Hindermayr, Fritz HansskeRequires cookie*
 Title    Two Inhibitors of Platelet Aggregation from a Panus Species (Basidiomycetes)  
 Abstract    Two inhibitors of platelet aggregation were isolated from fermentations of Panus sp. 9096. One inhibitor proved to be identical to naematolon (2), an antibiotic previously isolated by S. Backens et al. from several Hypholoma species. The other metabolite, panudial (1), is a new nordrimane (cw-annelation of the bicyclus) lacking the carbon atom in position 10 of the drimane skeleton. Panudial is a potent inhibitor of bovine and human platelet aggregation stimulated by different inducers. 
  Reference    Z. Naturforsch. 49c, 132—138 (1994); received September 1/ 
  Published    1994 
  Keywords    Basidiomycetes, Lentineae, Panus Species, Platelet Aggregation, Antibiotics, Drimanes 
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 TEI-XML for    default:Reihe_C/49/ZNC-1994-49c-0132.pdf 
 Identifier    ZNC-1994-49c-0132 
 Volume    49 
8Author    G. Erh, RdE. Rk El, TimmA. NkeRequires cookie*
 Title    Hyphodontal, a New Antifungal Inhibitor of Reverse Transcriptases from Hyphodontia sp. (Corticiaceae, Basidiomycetes)  
 Abstract    R o b e rt V elten, A lb erto G im enez and W olfgang Steglich In a search for inhibitors of RNA-directed DNA polymerases a new isolactarane sesquiter-penoid, hyphodontal (1), was isolated from fermentations of a Canadian Hyphodontia species. Its structure was elucidated by spectroscopic methods. Hyphodontal strongly inhibits the growth of several yeasts and is a non-competitive inhibitor of avian myeloblastosis virus (Kj 346 ^ m) and Moloney murine leukemia virus (K 112 (i m) reverse transcriptases. In addition, cytotoxic and antifungal activities were observed. 
  Reference    Z. Naturforsch. 49c, 561—570 (1994); received May 5/ 
  Published    1994 
  Keywords    Hyphodontia sp, Basidiomycetes, Sesquiterpenes, Isolactaranes, Reverse Transcriptases 
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 TEI-XML for    default:Reihe_C/49/ZNC-1994-49c-0561.pdf 
 Identifier    ZNC-1994-49c-0561 
 Volume    49 
9Author    Z. NaturforschRequires cookie*
 Title    Kuehneromycins A and B, Two New Biological Active Compounds from a Tasmanian Kuehneromyces sp. (Strophariaceae, Basidiomycetes)  
 Abstract    G erh ard E rk e l3, K irsten L o ren zen 3, Timm A n k ea, R obert V eltenb, A lb erto G im en ezb, and W olfgang Steglichb In a search for new inhibitors of RNA-directed DNA-polymerases kuehneromycin A (1) was isolated from fermentations of a Tasmanian Kuehneromyces species. Its structure was elucidated by spectroscopic methods. Kuehneromycin A (1) is a non-competitive inhibitor of avian myeloblastosis virus (Kj 200 ^i m) and moloney murine leukemia virus (K; 40 (.i m) reverse transcriptases. The second compound, kuehneromycin B (2) is a strong inhibitor of platelet aggregation stimulated with different inducers. In addition, both compounds exhibit cytotoxic and antimicrobial activities. 
  Reference    Z. Naturforsch. 50c, 1 (1995); received October 5 1994 
  Published    1995 
  Keywords    Kuehneromyces sp, Basidiomycetes, Sesquiterpenoids, Drimanes, Nordrimanes 
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 TEI-XML for    default:Reihe_C/50/ZNC-1995-50c-0001.pdf 
 Identifier    ZNC-1995-50c-0001 
 Volume    50 
10Author    Brigitte Simona, Timm Anke3, U. Andersb, M. Neuhausb, F. HansskebRequires cookie*
 Title    Collybial, a New Antibiotic Sesquiterpenoid from Collybia confluens (Basidiomycetes)  
 Abstract    A new antibiotic was isolated from fermentations of an american strain of Collybia con­ fluens. Its structure was elucidated by spectroscopic methods as 2,10,10-trim ethal-4-oxo-tri-cyclo[]undec-6-en-carbaldehyde (with the relative stereo chemistry IS, 2 R. 5 R. 9 R) (1). The inhibitor, which was named collybial, is structurally related to koraiol, a sesquiter­ penoid isolated from Pinus koraiensis (Khan V. A . (1979), Khim. Prir. Soedin 5, 6 5 2 -6 5 8). Collybial inhibited the growth of Gram-positive bacteria at concentrations starting from 21.5 | i m . The propagation of vesicular stomatitis virus (V SV) in baby hamster kidney (B H K -21) cells was inhibited by 21.5 [.i m collybial. Cytotoxic effects on B H K cells were observed at 5 fold higher concentrations. 
  Reference    Z. Naturforsch. 50c, 173 (1995); received O ctober 12/Novem ber 11 1994 
  Published    1995 
  Keywords    Collybia confluens, Basidiomycetes, Antibiotic, Antiviral, Cytotoxic Activity 
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 TEI-XML for    default:Reihe_C/50/ZNC-1995-50c-0173.pdf 
 Identifier    ZNC-1995-50c-0173 
 Volume    50 
11Author    Michaela Engler3, TimmA. Nkea, Olov SternerRequires cookie*
 Title    Production of Antibiotics by Collybia nivalis, Omphalotus olearius, a Favolaschia and a Pterula Species on Natural Substrates  
 Abstract    Collybia nivalis, Favolaschia sp. 87129, Pterula sp. 82168 and Omphalotus olearius were cultivated on natural substrates. The antibiotic metabolites oudemansin A, strobilurins A, D. illudin S and pterulone were isolated and identified. A new antifungal metabolite, pterulone B, was described from cultures of Pterula sp. 82168 on wood. Collybia nivalis was found to be the first species of this genus to produce strobilurins and oudemansin A. As compared to rich media the cultivation on natural substrates resulted in the production of fewer metabo­ lites. The concentrations of the antibiotics, however, were sufficient to inhibit other sapro­ phytic fungi. 
  Reference    Z. Naturforsch. 53c, 318 (1998); received March 3 1998 
  Published    1998 
  Keywords    Basidiomycetes, Natural Substrate, Strobilurins, Oudemansin A, Pterulones 
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 TEI-XML for    default:Reihe_C/53/ZNC-1998-53c-0318.pdf 
 Identifier    ZNC-1998-53c-0318 
 Volume    53 
12Author    H. Eidrun, A. Nke, E. Lisabeth, H. Illen, -. M. Aske, W. Olfgang SteglichRequires cookie*
 Title    9 ß-Hydroxymarasmic Acid and Other Sesquiterpenoids from Submerged Cultures of a Basidiomycete [1]  
 Abstract    9 ß-Hydroxymarasmic acid, a new sesquiterpenoid, marasmic acid and isovelleral were isolated from cultures of a basidiomycete. Comparison of the antimicrobial activity of the three natural compounds together with two n-butyl ether derivatives of marasmic acid revealed MICs against bacteria in the range of 0 .2 —20 ng/ml. The antifungal, cytotoxic and phytotoxic activities of isovelleral were similar to those exhibited by marasmic acid, whereas the marasmic acid deriva­ tives were considerably less active than the parent compound. Isovelleral was the only compound to show hemolytic activity. 
  Reference    Z. Naturforsch. 44c, 1 (1989); received August 31 1988 
  Published    1989 
  Keywords    Marasmic Acid, 9 ß-Hydroxymarasmic Acid, Isovelleral, Sesquiterpenoids, Antibiotics, Basidiomycetes 
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 TEI-XML for    default:Reihe_C/44/ZNC-1989-44c-0001.pdf 
 Identifier    ZNC-1989-44c-0001 
 Volume    44 
13Author    Kirsten Lorenzena, TimmA. Nkea, Silvia Konetschny-Rappb, Werner ScheuerbRequires cookie*
 Title    5-Hydroxy-3-vinyl-2(5H)-furanone -a New Inhibitor of Human Synovial Phospholipase A 2 and Platelet Aggregation from Fermentations of a C alyptella Species (Basidiomycetes)  
 Abstract    5-Hydroxy-3-vinyl-2(5H)-furanone, a potent and selective inhibitor of human synovial phospholipase A 2 was isolated from fermentations of a Calyptella species. Its structure as identified by spectroscopic methods is identical to PA 147, an antibiotic previously isolated from a streptomycete. 5-hydroxy-3-vinyl-2(5H)-furanone inhibits the aggregation of human and bovine platelets stimulated by different inducers and exhibits weak antimicrobial activities. 
  Reference    Z. Naturforsch. 50c, 403—409 (1995); received January 16/February 10 1995 
  Published    1995 
  Keywords    Basidiomycetes, Calyptella Species, Platelet Aggregation, Antibiotics, Phospholipase A 2 
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 TEI-XML for    default:Reihe_C/50/ZNC-1995-50c-0403.pdf 
 Identifier    ZNC-1995-50c-0403 
 Volume    50 
14Author    A. Nnette, W. Under1, TimmA. Nke3, D. Örte Klostermeyerb, Wolfgang SteglichbRequires cookie*
 Title    Lactarane Type Sesquiterpenoids as Inhibitors of Leukotriene Biosynthesis and Other, New Metabolites from Submerged Cultures of Lentinellus cochleatus (Pers. ex Fr.) Karst  
 Abstract    Three known sesquiterpenoids of the lactarane and secolactarane type, deoxylactarorufin A (1), blennin A (2) and blennin C (3), have been obtained from cultures of Lentinellus cochleatus (Basidiom ycetes) together with the new metabolites (Z)-2-chloro-3-(4-m e-thoxyphenyl)-2-propen-l-ol (4) and lentinellone (5), a protoilludane derivative. The struc­ tures were determined by spectroscopic investigations. 1, 2 and 3 are potent inhibitors of leukotriene biosynthesis in rat basophilic leukemia (RBL-1) cells and human peripheral blood leukocytes (PBL). 
  Reference    Z. Naturforsch. 51c, 493—4 (1996); received March 3 March 13 1996 
  Published    1996 
  Keywords    Basidiomycetes, Lentinellus cochleatus, Inhibitors of Leukotriene Biosynthesis, Lactaranes, Protoilludanes 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0493.pdf 
 Identifier    ZNC-1996-51c-0493 
 Volume    51 
15Author    Stefan Kremer, Olov Sterner, Heidrun AnkeRequires cookie*
 Title    Degradation of Pentachlorophenol by Mycena avenacea TA 8480 - Identification of Initial Dechlorinated Metabolites  
 Abstract    Cultures o f the basidiomycete M ycena avenacea TA 8480 were shown to m etabolize penta­ chlorophenol (PCP), 2,3,5,6-tetrachloro-/7-hydroquinone (TeCHQ), and 2,3,5,6-tetrachloro-/?-benzoquinone (TeCBQ). The first metabolite o f the PCP degradation pathway was identified as TeCBQ which in a second reaction is reduced to the hydroquinone TeCHQ. Subsequently dechlorination o f TeCHQ yielded 3,5,6-trichloro-2-hydroxy-/?-benzoquinone (TCOHBQ). The specific degradation rate for PCP was 1.4 mg x g dry m ycelia-1 x day-1. The initial de­ chlorination rate o f TeCHQ was 5.9 mg x g dry m ycelia"1 x h o u r '1. N one o f the com pounds supported growth o f the fungus. 
  Reference    Z. Naturforsch. 47c, 561 (1992); received April 1 1992 
  Published    1992 
  Keywords    Basidiomycete, M ycena avenacea, Pentachlorophenol, Dechlorination, 3, 5, 6-Trichloro-2-hydroxybenzoquinone 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0561.pdf 
 Identifier    ZNC-1992-47c-0561 
 Volume    47 
16Author    Alexandra Gehrta, GerhardE. Rkel3, TimmA. Nkea, Olov Sterner6Requires cookie*
 Title    Basidiomycete Junghuhnia nitida (Pers.: Fr.) Ryv  
 Abstract    Nitidon, a highly oxidised pyranone derivative produced by the basidiomycete Junghuhnia nitida, has been isolated and its biological activities evaluated. The structure was determined by spectroscopic methods. Nitidon exhibits antibiotic and cytotoxic activities and induces morphological and physiological differentiation of tumor cells at nanomolar concentrations. 
  Reference    Z. Naturforsch. 53c, 89 (1998); received November 7/December 3 1997 
  Published    1998 
  Keywords    Basidiomycete, Junghuhnia nitida, Nitidon, Antibiotic Activities, Induction of Differentiation of HL-60 Cells 
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 TEI-XML for    default:Reihe_C/53/ZNC-1998-53c-0089.pdf 
 Identifier    ZNC-1998-53c-0089 
 Volume    53