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  • Abrotanella  (1)
  • G(M1) Ganglioside/*chemistry  (1)
  • American Association for the Advancement of Science (AAAS)  (1)
  • Springer  (1)
  • Stuttgart : Schweizerbart
  • Taylor & Francis
  • 2020-2024
  • 1995-1999  (2)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (1)
  • Springer  (1)
  • Stuttgart : Schweizerbart
  • Taylor & Francis
Years
  • 2020-2024
  • 1995-1999  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Flavonoid chemistry ofBlennospermatinae, a trans-Pacific disjunct subtribe ofSenecioneae (Asteraceae) (1999)
    Springer
    Plant systematics and evolution 216 (1999), S. 231-241 
    Details
    ISSN: 1615-6110
    Keywords: Asteraceae ; Senecioneae ; Blennospermatinae ; Abrotanella ; Blennosperma ; Crocidium ; Ischnea ; Flavonoids ; phytogeography ; disjunct ; pacific
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The flavonoid profiles of seven species ofAbrotanella and one species ofIschnea have been shown to be based upon kaempferol 3- and quercetin 3-O-glycosides and a delphinidin glycoside. Glucosides, glucuronides, arabinosides, diglucosides, and rutinosides of the flavonols were identified. The profile ofIschnea consisted solely of quercetin 3-O-glucoside and 3-O-arabinoside whereas the profiles of theAbrotanella species were more varied. Although infraspecific variation was not investigated in this study, the flavonoid chemistry of the two genera is in accordance with the flavonoid variation described for other members ofSenecioneae which are primarily flavonol producers. Based on the known phylogeny and biogeography, the flavonoid distribution from the perspective of long-distance dispersals across the Pacific is discussed. Such events should lead to genetic bottle-neck situations and depauperate flavonoid profiles. A summary of current flavonoid knowledge in theSenecioneae is supplied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01084400
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Nanoscale complexity of phospholipid monolayers investigated by near-field scanning optical microscopy (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-10-27
    Description: Near-field scanning optical microscopy of phospholipid monolayers doped with fluorescent lipid analogs reveals previously undescribed features in various phases, including a concentration gradient at the liquid-expanded/liquid-condensed domain boundary and weblike structures in the solid-condensed phase. Presumably, the web structures are grain boundaries between crystalline solid lipid. These structures are strongly modulated by the addition of low concentrations of cholesterol and ganglioside GM1 in the monolayer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hwang, J -- Tamm, L K -- Bohm -- Ramalingam, T S -- Betzig, E -- Edidin, M -- AI14584/AI/NIAID NIH HHS/ -- AI30557/AI/NIAID NIH HHS/ -- DK44375/DK/NIDDK NIH HHS/ -- R37 AI030557/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1995 Oct 27;270(5236):610-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7570018" target="_blank"〉PubMed〈/a〉
    Keywords: 1,2-Dipalmitoylphosphatidylcholine/*chemistry ; Boron Compounds ; Cholesterol/*chemistry ; Fluorescent Dyes ; G(M1) Ganglioside/*chemistry ; Microscopy/*methods ; Microscopy, Fluorescence ; Phosphatidylcholines ; Phospholipids/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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