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'Locusta migratoria' in keywords
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1Author    Elisabeth Lehmbergab, Hans-J Ferenzb, ShalomW. ApplebaumaRequires cookie*
 Title    Maturation and Responsiveness to Extracts of Corpora Allata from Male Locusta migratoria containing Allatotropic Factors  
 Abstract    Corpora allata (CA) from male Locusta migratoria were tested for their ability to synthesize juvenile hormone (JH) and to respond to stimulating brain/corpora cardiaca (CC) extracts under in vitro conditions. We found that a preincubation o f the CA o f both sexes at 4 °C for 24 h lowers their basal rate o f synthesis and retains their responsiveness to allatotropic factors. Male CA can be stimulated by brain/CC extracts as well as female CA. JH biosynthesis stimu­ lating factors are also present in male brain/CC extracts. Thus such extracts from male locusts can be used for the isolation o f locust allatotropin. Furthermore male locust CA are appro­ priate for bioassaying such allatotropic factors. 
  Reference    Z. Naturforsch. 47c, 449 (1992); received July 19 1991/March 23 1992 
  Published    1992 
  Keywords    Corpora allata, JH Biosynthesis, Allatotropin, Locusta migratoria 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0449.pdf 
 Identifier    ZNC-1992-47c-0449 
 Volume    47 
2Author    Heinz Rem, K. Laus-, Peter SieberRequires cookie*
 Title    Inhibition of Oogenesis and Ovarian Ecdysteroid Synthesis by Azadirachtin in Locusta migratoria migratorioides (R. & F.)  
 Abstract    The sterilizing effect of azadirachtin, an insect growth regulator from the neem tree, Azadirachta indica A. Juss, was tested with mature females o f Locusta migratoria. After a single injection of 10 |ig into females between 2 and 13 days after emergence, about 60% died during the following four days and all lost weight in the range of about 50%. If the compound was injected into animals of an age between 2 and 10 days, no maturation o f the terminal oocytes could be observed. Injection at an age between 10 and 13 days after adult emergence resulted in ovaries which contained almost mature oocytes. Most o f the treated locusts had no oviposition and only traces of ecdysteroids were present in their ovaries, as quantified by radioimmunoassay. The inhibition of oogenesis and o f ovarian ecdysteroid synthesis by azadirachtin is discussed on the basis of its interference with the neuroendocrine control of hormone synthesis. 
  Reference    Z. Naturforsch. 36c, 466 (1981); received November 10 1980/February 23 1981 
  Published    1981 
  Keywords    Locusta migratoria, Azadirachta indica, Ecdysteroids, Azadirachtin, Ovary 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0466.pdf 
 Identifier    ZNC-1981-36c-0466 
 Volume    36 
3Author    Hans-Joerg Ferenz, Ingrid DiehlRequires cookie*
 Title    Stimulation of Juvenile Hormone Biosynthesis in vitro by Locust Allatotropin  
 Abstract    In Locusta migratoria the gonotrophic cycles are regulated by juvenile horm one. The cyclical changes o f juvenile hormone synthesis in locust corp ora allata seem to be regulated by a neuro-hormonal factor. Such an allatotropin could be extracted from corp ora card iaca and brains of Locusta migratoria. It is a small pronase-sensitive and heat-stable peptide. E xtract o f one corpus cardiacum stimulates corpus allatum biosynthetic activity in vitro 5 to 20-fold. 
  Reference    Z. Naturforsch. 38c, 856 (1983); received April 22/Ju ly 4 1983 
  Published    1983 
  Keywords    Locusta migratoria, Neurohorm ones, Allatotropin, Juvenile H orm one Biosynthesis, Oogenesis 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0856.pdf 
 Identifier    ZNC-1983-38c-0856 
 Volume    38 
4Author    Hans-Peter Stupp, MartinG. PeterRequires cookie*
 Title    Juvenile Hormone III as a Natural Ligand for Photoaffinity Labelling of JH-Binding Proteins  
 Abstract    Juvenile hormone III, i.e. methyl 10,1 l-epoxy-3,7-dimethyl-2£',6£'-dodecadienoate, was used for photoaffinity labelling of JH-binding proteins. Irradiation of haemolymph from Manduca sexta and Locusta migratoria in the presence of racemic [10-3H]JH-III results in covalent 
  Reference    Z. Naturforsch. 39c, 1145—1149 (1984); received April 26/July 23 1984 
  Published    1984 
  Keywords    Insect Haemolymph, Hormone Binding Proteins, Juvenile Hormone, Photoaffinity Labelling, Manduca sexta, Locusta migratoria 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-1145.pdf 
 Identifier    ZNC-1984-39c-1145 
 Volume    39 
5Author    HeinzR. Em Bold, Jörg Eder, G. Abriele, M. UlrichRequires cookie*
 Title    Inhibition o f Allatotropic Activity and Ovary Development in Locusta migratoria by Anti-Brain-Antibodies  
  Reference    Z. Naturforsch. 35c, 1117—1119 (1980); received July 7/July 30 1980 
  Published    1980 
  Keywords    Locusta migratoria, Neurosecretion, Allatotropic Factor, A nti-Brain-A ntibodies, Ovary Development 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-1117_n.pdf 
 Identifier    ZNC-1980-35c-1117_n 
 Volume    35