Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    THE REGIONAL DISTRIBUTION OF THE POLYAMINES SPERMIDINE AND SPERMINE IN BRAIN (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 20 (1973), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— The distribution in brain of the polyamines spermidine and spermine is described in the rat, dog, sheep, rabbit and in man. The distribution pattern was about the same in all the species, spermidine concentration being highest in areas rich in white matter. The concentration of spermine was lower than that of spermidine and showed less variation from area to area. Rat brain polyamine content was the same in rats killed by decapitation as in those killed by rapid freezing in liquid nitrogen and was also unchanged up to 48 h after the death of the animal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1973.tb00091.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Relationship of Kerogen and Sporopollenin–A Reply (1970)
    [s.l.] : Nature Publishing Group
    Nature 227 (1970), S. 195-196 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Cooper and Murchison2 question here how sporopollenin (which they seem to regard as a characteristic component of the exines of vascular land plants alone) may survive into the Pre-Cambrian when it is usually accepted that kerogen in old sediments is probably derived from more primitive sources. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/227195a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Chemistry and Morphology of Precambrian Microorganisms (1973)
    [s.l.] : Nature Publishing Group
    Nature 244 (1973), S. 215-217 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Occurrences of microstructures from the Upper Onverwacht Swartkoppie Formation have been reported previously1?5. Here we provide the first description of microorganisms from the Kromberg and Theespruit Formations. The microstructures reported6?8from the succeeding Fig Tree Series (3.1 × 109 yr old) ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/244215a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Synthesis and stereospecific synthesis of some alkyl-5-amino-1-glycofuranosyl imidazole-4-carboxylates related to intermediates in purine nucleotide de novo biosynthesis (1972)
    Springer
    Cellular and molecular life sciences 28 (1972), S. 763-765 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung 5-Amino-Glycofuranosylimidazol-Derivative wurden durch Kondensation der Isopropylidenglycofuranosylamine mit Äthyl-N-(Cyano-N-Äthoxycarbonylmethyl)formimidat oder durch Reaktion von Äthylformimidat-Hydrochlorid mit den Furanosylaminen, wozu Äthyl-α-amino-α-cyanoacetat hinzugefügt wurde, dargestellt. Bei den Ribose- und Mannosederivaten, wurden α- und β-Formen als Kristalle isoliert. Eine neue stereospezifische Synthese von Xylofuranosylaminoimidazol über ein Xyloseoxazolin wird beschrieben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01923114
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Sporopollenin formation in the ascospore wall of Neurospora crassa (1974)
    Springer
    Archives of microbiology 101 (1974), S. 145-151 
    Details
    ISSN: 1432-072X
    Keywords: Sporopollenin ; Neurospora ; Ascospore Wall ; Carotenoids ; Resistant Spore
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Chemical extraction procedures have shown that sporopollenin is a major component of the ascospore wall of Neurospora crassa and Neurospora tetrasperma. The sporopollenin is about 12% total dryweight of ascospores, and is localised in the ribbed perispore layer. Radioactive β-carotene is efficiently incorporated into the sporopollenin, and it is suggested that carotenoids are the natural precursors that are polymerised in the perispore. However, three carotenoid-deficient mutants of N. crassa produced perispores of normal appearance and properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00455934
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...