Characterisation des vitellogenines et des vitellines chez ceratitis capitata [diptera, trypetidae]: etude electrophoretique et immunoelectrophoretiqe

electrophoretic study of haemolymphatic proteins in Ceratitis capitata has allowed to establish a proteic sexual dimorphism in this insect. This consists in a proteic Fraction which is specific to the male and which appears at the imaginal ecdysis and stays during all the imaginal stage and in 3 other fractions which are characteristic to the female. Immuno electrophoretic study showed that these female proteins could be considered as vitellogenins the nature and the mode or incorporation of those proteins in the oocyte are discussed

Les glandes salivaires de Myzus presicae [Homoptera, Aphididae]: structure et rythme secretoire

The salivary glands of Myzus persica [Homoptera. aphididae]: structure and secetroy rhythm. Studying the structure of the salivary glands of Myzus persica a particular mode of working of these organs were observed. The glands seem to function in an alternative manner. This aspect is discussed with regards to the nutritional biting of the bug