6533b7d3fe1ef96bd125feea
RESEARCH PRODUCT
Protein and amino acid composition of the tergal gland secretions ofBlatta orientalis andEurycotis floridana (Dictyoptera: Blattidae)
Dehbia Abed-vieillardRémy BrossutJean-pierre FarineJean Francoissubject
chemistry.chemical_classificationbiologyBlattaBlattidaeDictyopteraGlutamic acidEurycotisbiology.organism_classificationBiochemistryAmino acidchemistryBiochemistryAspartic acidNymphEcology Evolution Behavior and Systematicsdescription
Summary Nymphs and adult females ofBlatta orientalis and nymphs ofEurycotis floridana produce a proteinaceous sticky secretion which accumulates on the last abdominal tergites. The proteic patterns do not differ between individuals of the same species. HPLC analyses show that all the common amino acids are found in both species, aspartic and glutamic acids representing 24 to 37% of the total amount of amino acids. InB. orientalis, glutamic acid is the more abundant amino acid whereas inE. floridana it is the aspartic acid. The secretion appears and accumulates rapidly on isolated insects. Behavioural assays revealed that these secretions have a defensive role.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-03-01 | Chemoecology |