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  • Mutant, rin (tomato)  (1)
  • Raguinite  (1)
  • 1975-1979  (2)
  • 1945-1949
  • 1979  (2)
  • 1948
Collection
Keywords
Publisher
Years
  • 1975-1979  (2)
  • 1945-1949
Year
  • 1979  (2)
  • 1948
  • 1
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von TlFeSe2 und TlFeS2 (1979)
    Springer
    Monatshefte für Chemie 110 (1979), S. 1045-1055 
    Details
    ISSN: 1434-4475
    Keywords: Chalcogenides ; Crystal structure ; Raguinite ; TlFeS2 ; TlFeSe2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract TlFeSe2 is monoclinic, space groupC2/m−C 2h 3 ,a=11.973 Å,b=5.490 Å,c=7.110 Å, β=118.2°,Z=4. TlFeS2 is isotypic witha=11.636 Å,b=5.304 Å,c=6.799 Å, β=116.7°. The crystal structure of TlFeSe2 has been determined from single crystal diffractometer data. Isotypy of the sulfide has been confirmed from powder diffraction data. The crystal structure containing infinite linear chains of edgesharing FeX 4-tetrahedra, and its relationship to the thio- and selenoferrates of the alkali metals are discussed. The mineral raguinite is very probably isotypic to synthetic TlFeS2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00910952
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  • 2
    Electronic Resource
    Electronic Resource
    Assay for and enzymatic formation of an ethylene precursor, 1-aminocyclopropane-1-carboxylic acid (1979)
    Springer
    Planta 145 (1979), S. 293-303 
    Details
    ISSN: 1432-2048
    Keywords: 1-Aminocyclopropane-1-carboxylic acid ; Ethylene ; Lycopersicon ; Mutant, rin (tomato) ; Rhizobitoxine analog
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A simple and sensitive chemical assay was developed for 1-aminocyclopropane-1-carboxylic acid (ACC), a precursor of ethylene. The assay is based on the liberation of ethylene from ACC at pH 11.5 in the presence of pyridoxal phosphate, MnCl2 and H2O2. This assay was used to detect ACC in extracts of tomato fruits (Lycopersicon esculentum Mill.) and to measure the activity of a soluble enzyme from tomato fruit that converted S-adenosylmethionine (SAM) to ACC. The enzyme had a Km of 13 μM for SAM, and conversion of SAM to ACC was competitively and reversibly inhibited by aminoethoxyvinylglycine (AVG), an analog of rhizobitoxine. The Ki value for AVG was 0.2 μM. The level of the ACC-forming enzyme activity was positively correlated with the content of ACC and the rate of ethylene formation in wild-type tomatoes of different developmental stages. Mature fruits of the rin (non-ripening) mutant of tomato, which only produce low levels of ethylene, contained much lower levels of ACC and of the ACC-forming enzyme activity than wild-type tomato fruits of comparable age.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00454455
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    Paper (German National Licenses)
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