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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Plant cell reports 17 (1998), S. 334-338 
    ISSN: 1432-203X
    Keywords: Key words Japanese lawngrass ; Zoysia japonica ; Polyethylene glycol ; Genetic transformation ; Hygromycin phosphotransferase ; β-Glucuronidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Transgenic Japanese lawngrass (Zoysia japonica Steud.) plants were generated by means of polyethylene glycol (PEG)-mediated direct gene transfer into protoplasts. The plasmid pBC1 was used to deliver the hygromycin phosphotransferase (hph) and β-glucuronidase (gus) genes into protoplasts. Selection with a high concentration (400 mg/l) of hygromycin yielded a number of resistant calli and about 400 plants were generated. Polymerase chain reaction (PCR) and Southern hybridization analyses revealed that all of then plants tested contained introduced genes. The gus gene regulated by the maize alcohol dehydrogenase-1 (Adh 1) promoter was expressed in the leaves and roots of transgenic Japanese lawngrass plants.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 525 (1985), S. 230-236 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Verbindungsbildung im System PbGeO3—Pb5Ge3O11Die Verbindungsbildung im System PbGeO3—Pb5Ge3O11 wurde mittels Thermoanalyse und Hochtemperatur-Röntgenbeugung untersucht. Neue Modifikationen des PbGeO3 und Pb5Ge3O11 wurden durch gleichzeitige Hydrolyse von Blei- und Germanium-alkoxiden dargestellt. PbGeO3 hat eine hexagonale Einheitszelle mit a = 15,573 und c = 7,240 Å und Pb5Ge3O11 besitzt eine orthorhombische Kristallstruktur mit a = 5,081, b = 7,301 und c = 8,817 Å. Sie werden in die bekannten monoklinen und hexagonalen Modifikationen bei 575 bis 610°C bzw. 410 bis 450°C umgewandelt. Eine Verbindung der Zusammensetzung Pb3Ge2O7 wird nicht bestätigt. Die Strukturen der Germanatgruppen in den Bleigermanaten werden auf der Grundlage von IR-Daten diskutiert.
    Notes: Compound formation in the system PbGeO3—Pb5Ge3O11 was studied by thermal analysis and high-temperature X-ray diffraction. New modifications of PbGeO3 and Pb5Ge3O11 were prepared by the simultaneous hydrolysis of lead and germanium alkoxides, followed by washing and drying; the former has a hexagonal unit cell with a = 15.573 Å and c = 7.240 Å, and the latter has an orthorhombic crystal structure with a = 5.081 Å, b = 7.301 Å and c = 8.817 Å. They are transformed to the known monoclinic and hexagonal modifications at 575 to 610°C and 410 to 450°C, respectively. No compound of Pb3Ge2O7 was confirmed. The structures of germanate groups in the lead germanate compounds are discussed on the basis of the infrared spectral data.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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