TY  - JOUR
AB  - Pieces of the integument cut off from the hind tibiae of the freshly moulted adult cockroaches were cultivated in vitro. The epidermis reacted to the application of 2 x 10-5 mol l-1 ecdysterone by an apolysis. If thereafter the hormone concentration stayed above a concentration of 2 x 10-7 mol l-1 only epicuticle and exocuticle were deposited. However, when the hormone concentration was reduced below a critical threshold, that was possibly between 2x10-7 and 2x10-8 mol l-1, a composite procuticle with exocuticle and endocuticle was deposited. Neither application of dibutyryl-cAMP to the culture medium, nor co-cultivation of the ventral nerve cord of a freshly moulted adult had distinct effects. Obviously, bursicon was not necessary for deposition of the endocuticle; instead, Riddiford´s sequential cascade model was fulfilled. The cuticle also developed the typical patterns of sclerotization independently of the application of dibutyryl-cAMP and the co-cultivation of a nerve cord.
AU  - Weber, Friedrich
AU  - Hassenrück, Rita
DA  - 2007
KW  - Schabenintegument
KW  - in vitro-Kulturen
KW  - hormonell induzierte Apolysis
KW  - Kutikula-Ablagerung
KW  - Kaskaden-Modell
KW  - Sklerotisierung
KW  - cockroach integument
KW  - in vitro cultures
KW  - hormonally induced apolysis
KW  - cuticle deposition
KW  - sequential cascade model
KW  - sclerotization
LA  - eng
PY  - 2007
TI  - Secretion of a Differentiated Cuticle after Apolysis in vitro in Cockroach Leg Integument
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:6-88519558955
Y2  - 2024-11-21T22:33:40
ER  -