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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Sexual plant reproduction 4 (1991), S. 235-243 
    ISSN: 1432-2145
    Keywords: Male sterility ; Pollen ; Anther ; Gameto cides ; Chemical hybridizing agents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Several unrelated compounds are known to selectively inhibit the development of the male gametophyte. When applied at suitable dosages to plants at the appropriate stages of anther development, these substances block the formation of fertile pollen. The affected stage of pollen development is characteristic of the specific chemical structure of the compound, ranging from effects on microspore meiosis to the formation of pollen defective in the ability to germinate or fertilize. The range of effects mediated by these substances, and by known male-sterile mutants, indicates that microspore development has several critical phases that are particularly sensitive to fatal inhibition. We propose that chemical inhibitors of pollen development deserve attention as tools for elucidating the regulation of pollen development.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European child & adolescent psychiatry 5 (1996), S. 222-225 
    ISSN: 1435-165X
    Keywords: Akinetic mutism ; Rasmussen encephalitis ; temporal lobectomy ; epileptic aphasia (LKS) ; pervasive developmental disorder
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A girl aged 9 years with Rasmussen's encephalitis previously treated by left temporal lobectomy suddenly developed prolonged attacks of extremely rapid respirations associated with poverty of body movements and greatly reduced facial movements with loss of speech. Her comprehension appeared intact and she responded to certain requests. Her eye gaze behaviour suggested a high degree of vigilance. The attacks would last from minutes to hours and were repeated up to a dozen times daily. In the context of the stress generated by the illness and other family problems the attacks had been mistaken for an hysterical elaboration. Their ictal nature was confirmed by EEG/video monitoring. Possible links with other developmental language disorders associated with epilepsy are discussed, including a model of autism.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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