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>Morphogenesis and cuticular markers during the larval‐pupal transformation of the medfly Ceratitis capitata
Author(s) -
Rabossi A.,
Boccaccio G. L.,
Wappner P.,
QuesadaAllué L. A.
Publication year - 1991
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/j.1570-7458.1991.tb01532.x
Subject(s) - ceratitis capitata , cuticle (hair) , biology , tephritidae , metamorphosis , pupa , larva , instar , botany , arthropod cuticle , epidermis (zoology) , anatomy , insect , pest analysis
Changes in morphology during early metamorphosis of the medfly, Ceratitis capitata (Wied.) ( Tephritidae ) were correlated with biochemical differentiation events. Protein profiles were studied both in the 3rd instar larval cuticle further transformed into puparium and the newly synthesized pupal cuticle. Beta‐alanine incorporation into the puparium (0–20 h) correlates with concomitant pigmentation (completed by 16 h) and sclerotization phenomena. This early ‘tannification program seems to be followed by deposition of a layer of substances, probably ecdysial fluid remnants, into the puparium. Their deposition ends approximately at +46 h. Simultaneously, pupal cuticle material starts to be deposited. Synthesis and deposition of the main pupal cuticle protein was detected 48 h after pupariation. At that time, eversion of the pupal head occurs. The definitive profile of pupal cuticle proteins was attained at around +72 h together with the establishment of adult body proportions.