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  • 1
    Electronic Resource
    Electronic Resource
    Gigantecin: A novel antimitotic and cytotoxic acetogenin, with nonadjacent tetrahydrofuran rings, fromGoniothalamus giganteus (Annonaceae) (1990)
    Springer
    Cellular and molecular life sciences 46 (1990), S. 539-541 
    Details
    ISSN: 1420-9071
    Keywords: Gigantecin ; acetogenins ; Goniothalamus giganteus ; Annonaceae ; brine shrimp ; antimitotic ; cytotoxic ; crown gall tumors ; potato disc assay ; 9 ASK
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Gigantecin (I), a novel tetrahydroxy-di-tetrahydrofuran fatty acid γ-lactone (acetogenin), was isolated from an ethanolic extract of the stem bark ofGoniothalamus giganteus Hook. f., Thomas (Annonaceae), by means of activity-directed fractionation (brine shrimp lethality test). This new compound is extremely cytotoxic to human tumor cells, inhibits crown gall tumors on potato discs, and is active in an assay designed to detect antimitotic agents (9 ASK).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01954260
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Goniothalamicin and annonacin: Bioactive acetogenins fromGoniothalamus giganteus (Annonaceae) (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 83-85 
    Details
    ISSN: 1420-9071
    Keywords: Goniothalamicin ; annonacin ; acetogenins ; Goniothalamus giganteus ; Annonaceae ; brine shrimp ; insecticidal ; cytotoxic ; antileukemic activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Using brine shrimp lethality for activity-directed fractionation, goniothalamicin (I), a new tetrahydroxy-mono-tetrahydrofuran fatty acid γ-lactone (acetogenin), has been isolated from ethanolic extracts of the stem bark ofGoniothalamus giganteus Hook. f., Thomas (Annonaceae). This novel compound was found to be cytotoxic and insecticidal and inhibited the formation of crown gall tumors on potato discs. Annonacin (II), the only other reported mono-tetrahydrofuran acetogenin, was also isolated; the previously reported 9ASK (astrocytoma reversal) activity ofII was confirmed, andII is now also found to be weakly active against 3PS murine leukemia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01960258
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Sylvaticin: A new cytotoxic and insecticidal acetogenin fromRollinia sylvatica (Annonaceae) (1990)
    Springer
    Cellular and molecular life sciences 46 (1990), S. 324-327 
    Details
    ISSN: 1420-9071
    Keywords: Sylvaticin ; acetogenin ; Rollinia sylvatica ; Annonaceae ; brine shrimp ; cytotoxicity ; insecticidal ; striped cucumber beetle ; European corn borer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Sylvaticin (I), a new tetrahydroxy annonaceous acetogenin with nonadjacent tetrahydrofuran rings, has been isolated from the dried fruits ofRollinia sylvatica St. Hil. (Annonaceae). This compound is extremely cytotoxic to human tumor cells and shows promising insect control properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01951779
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Microbial diversity: ex situ conservation of Indonesian microorganisms (1997)
    Springer
    World journal of microbiology and biotechnology 13 (1997), S. 359-361 
    Details
    ISSN: 1573-0972
    Keywords: Biodiversity ; conservation ; fermented foods ; fungi ; Indonesia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract This paper discusses the role of microbial resource collections in the ex situ conservation of microbial diversity and, in particular, the activities of a recently completed Darwin Initiative project to facilitate collection, identification and exploitation of Indonesian microbial diversity. This helped revitalize the collection of the Lembaga Ilmu Pengetahuea Indonesia (Indonesian Institute of Sciences), LIPI, Research and Development Centre for Biology, Bogor, Indonesia. It is suggested that a focus on microorganisms beneficial to man is essential to enable ex situ collections to be a useful tool in the conservation and sustainable utilization of microbial diversity. This task is enormous and far beyond the capabilities of one collection and its achievement will necessitate a network of collections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018559729803
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Recovery of fungi after storage for over a quarter of a century (1999)
    Springer
    World journal of microbiology and biotechnology 15 (1999), S. 517-519 
    Details
    ISSN: 1573-0972
    Keywords: Cryopreservation ; freeze-drying ; fungi ; oil storage ; silica gel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract This paper discusses the recovery of a sample of strains originally preserved on silica gel over the period 1970–1973. Fifty-three strains were tested of which 18 recovered, demonstrating survival for more than 20 years. The recovery of 26 of the strains is directly compared with that of replicates from oil storage and freeze-drying. A summary of storage of 421 strains by the silica gel technique is given, reporting survival of 64% for a quarter of a century or more. The technique is ideal for preserving sporulating fungi of the Ascomycota and many species of mitotic fungi for laboratories of limited facilities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008959521962
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  • 6
    Electronic Resource
    Electronic Resource
    Cryogenic light microscopy and the development of cooling protocols for the cryopreservation of filamentous fungi (1997)
    Springer
    World journal of microbiology and biotechnology 14 (1997), S. 49-57 
    Details
    ISSN: 1573-0972
    Keywords: Cooling rate ; cryogenic light microscopy ; cryopreservation ; exosmosis ; fungi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract One hundred and ninety five strains of fungi were observed during freezing and thawing using a cryogenic light microscope. There was no obvious link between taxonomic position and their morphological response to freezing and thawing. The viability of seven of these strains was examined following freezing and thawing in the presence or absence of the cryoprotectants glycerol and dimethyl sulphoxide. Intracellular ice and hyphal shrinkage were not necessarily lethal events, but in many cases they affected the rate and quality of growth. Both cryoprotectants reduced shrinkage, shifted the cooling rate where intracellular ice formed in many cases, and improved the recovery of strains. The results presented aid the development of successful cryopreservation protocols.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008820432471
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    Paper (German National Licenses)
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