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  • 1
    Electronic Resource
    Electronic Resource
    Lysogeny: The Integration Problem (1968)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 22 (1968), S. 451-488 
    Details
    ISSN: 0066-4227
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.mi.22.100168.002315
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Plasmid Formation: a New Mode of Lysogeny by Phase λ (1969)
    [s.l.] : Nature Publishing Group
    Nature 223 (1969), S. 158-160 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] λ phage with amber mutations in the N gene can persist indefinitely as an independent replicating unit, a plasmid, in the cytoplasm of host E. coli cells. This newly discovered mode of λ phage lysogeny may shed light on the evolution of plasmids and temperate ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/223158a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Genetic control of male fertility in Arabidopsis thaliana: structural analysis of premeiotic developmental mutants (1994)
    Springer
    Sexual plant reproduction 7 (1994), S. 17-28 
    Details
    ISSN: 1432-2145
    Keywords: Male-sterile mutants ; Arabidopsis Pollen development ; Microsporogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We have taken a mutational approach to identify genes important for male fertility in Arabidopsis thaliana and have isolated a number of nuclear male/ sterile mutants in which vegetative growth and female fertility are not altered. Here we describe detailed developmental analyses of four mutants, each of which defines a complementation group and has a distinct developmental end point. All four mutants represent premeiotic developmental lesions. In ms3, tapetum and middle layer hypertrophy result in the degeneration of microsporocytes. In ms4, microspore dyads persist for most of anther development as a result of impaired meiotic division. In ms5, degeneration occurs in all anther cells at an early stage of development. In ms15, both the tapetum and microsporocytes degenerate early in anther development. Each of these mutants had shorter filaments and a greater number of inflorescences than congenic male-fertile plants. The differences in the developmental phenotypes of these mutants, together with the non-allelic nature of the mutations indicate that four different genes important for pollen development, have been identified.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00241884
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    Paper (German National Licenses)
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