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  • 1980-1984  (3)
  • 1960-1964
  • Immunocytochemistry  (2)
  • Integrated pest management (IPM)  (1)
  • 1
    Electronic Resource
    Electronic Resource
    A quest for ecologically based pest management systems (1983)
    Springer
    Environmental management 7 (1983), S. 91-99 
    Details
    ISSN: 1432-1009
    Keywords: Agroecosystems ; Integrated pest management (IPM) ; Holistic approaches ; Ecosystem-oriented pest management
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The article presents a holistic approach to studying and applying crop protection in agricultural systems A theoretical framework of integrated pest management (IPM) is presented that allows an understanding of pest population processes on a whole-agroecological-system basis The need for and emergence of holistic research on agroecosystems is discussed, as are the current trends in ecological theory and pest management
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01867047
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Ontogeny of centers containing luteinizing hormone-releasing hormone in the brain of platyfish (Xiphophorus maculatus) as determined by immunocytochemistry (1983)
    Springer
    Cell & tissue research 229 (1983), S. 75-84 
    Details
    ISSN: 1432-0878
    Keywords: Immunocytochemistry ; Ontogeny ; LHRH ; Brain ; Teleost fish
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary We have traced the development from birth to puberty of the ir-LHRH producing centers, the nucleus olfactoretinalis (NOR), nucleus praeopticus periventricularis (NPP) and nucleus lateralis tuberis pars posterior (NLT), in male sibling platyfish genetically determined by differing P alleles to mature at two different ages. In sexually immature fish of both genotypes ir-LHRH is first localized in the NOR in perikarya and neuronal fibers and in the NPP where it is limited to the fibers. At the onset of puberty in early maturing fish (11 weeks), ir-LHRH accumulates in perikarya and fibers of the NPP and NLT. Late maturing siblings first have ir-perikarya in the NPP and a few ir-fibers in the NLT at the same developmental stage but at a later age (25–26 weeks). Ir-perikarya are still not seen in the NLT in late-maturing fish even when maturation is complete. This pattern of a sequential development of the three ir-LHRH containing areas of the brain, which we refer to as a “cascade effect”, is similar in early and late genotypes. It is directly correlated to stage of development and not to chronological age. It is clear that the appearance of LHRH producing brain centers precedes, and is presumably essential for, the completion of the development of pituitary gonadotrops and the subsequent maturation of the gonads. The functional significance of the NOR in puberty and reproduction and as a possible site of action for the P gene is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00217881
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Cross-reactivity between human and fish pituitary hormones as demonstrated by immunocytochemistry (1981)
    Springer
    Cell & tissue research 221 (1981), S. 257-267 
    Details
    ISSN: 1432-0878
    Keywords: Immunocytochemistry ; Human pituitary hormone antisera ; Platyfish ; Pituitary gland
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In this communication we describe the immunocytochemical cross-reactivity between antisera to various human pituitary hormones and specific hormone producing cell types in the pituitary gland of sexually mature male platyfish (Xiphophorus maculatus). Antisera to human pituitary hormones cross-reacted either with cells known to produce corresponding hormones (or hormone subunits) in the platyfish (e.g., ACTH, prolactin, TSH β, LH α, FSH α, TSH α) or with no pituitary cells at all (e.g., LH β, FSH β). The one exception was antiserum to human growth hormone which cross-reacted with MSH and ACTH producing cells. The platyfish pituitary is proposed as a test system for immunocytochemically screening antisera for purity and specificity in order to determine their applicability in particular studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00216730
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    Paper (German National Licenses)
    Fulltext
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