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2001 (1)
1Author    Reinhold DemRequires cookie*
 Title    Influence of Food and Larval Age on the Defensive Chemistry of Satumia pyri  
 Abstract    Scolus secretions and hemolymph of caterpillars of Satumia pyri fed with two different foodplants (Crataegus m onogyna, Prunus spinosa) were chemically analyzed and their chemi­ cal similarities determined. The secondary-compound patterns obtained for the two body fluids showed no significant differences when compared between the two groups of alterna­ tively fed last-instar larvae. Thus, the composition of these fluids of full-grown caterpillars is not influenced by the larval diet. However, younger larvae on P. spinosa revealed a diversity of compounds differing significantly from that of larger caterpillars fed with either C. m ono­ gyna (both body fluids) or P. spinosa (hemolymph only). This indicates that, on the one hand, the hemolymph composition is adapted to the changing physiological requirements of the given instars whereas, on the other hand, the defensive mixtures remain unaltered in the late larval instars due to a constant spectrum of potential enemies. 
  Reference    Z. Naturforsch. 56c, 89—94 (2001); received September 12/October 18 2000 
  Published    2001 
  Keywords    Chemical Defense, Saturniidae, Secondary Compounds 
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 TEI-XML for    default:Reihe_C/56/ZNC-2001-56c-0089.pdf 
 Identifier    ZNC-2001-56c-0089 
 Volume    56