Abstract
The distribution of integument peptides in relation to chitin and structural features has been studied in the surface epidermis of the caterpillar of Calpodes ethlius by immunoblotting and immunogold labelling using antibodies prepared to peptides isolated from lamellate endocuticle or from hemolymph. The intermoult cuticle consists of an epicuticle, an endocuticle of many chitin containing lamellae, and a chitin containing assembly zone directly above the apical epidermal microvilli and the perimicrovillar space. During the intermoult, the epidermis secretes peptides constitutively, that is, secretory vesicles containing peptides exocytose without accumulating, traverse the perimicrovillar space and form lamellae in the assembly zone. At moulting, the epidermis deposits ecdysial droplets in addition. These interrupt the last few lamellae which later go on to become the perforated ecdysial membrane. The integument is involved with four routing classes of peptide. Secretion is apical into the cuticle (C), basal into the hemolymph (H), bidirectional (BD), or transported to the cuticle across the epidermis from the hemolymph (T). Some peptides change their routing at moulting. There are several patterns of localization. (1) C and ...Continue Reading
References
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Citations
Nov 7, 2000·Journal of Insect Physiology·H Saito
Feb 13, 2001·Journal of Insect Physiology·M Locke
May 29, 2003·Journal of Insect Physiology·M Locke
May 29, 2003·Journal of Insect Physiology·R A. Steinbrecht, B A. Stankiewicz
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Nov 7, 1995·Proceedings of the National Academy of Sciences of the United States of America·M Ashida, P T Brey
Aug 27, 2002·Annual Review of Entomology·Michael Locke
Nov 28, 2015·Scientific Reports·Takeshi KawanoYoichi Hayakawa
Dec 25, 2007·Journal of Morphology·Michael Locke
Mar 18, 2016·Annual Review of Entomology·Kun Yan ZhuSubbaratnam Muthukrishnan
Dec 20, 2007·Arthropod Structure & Development·Julian F V Vincent, Ulrike G K Wegst
Jan 11, 2002·Developmental Biology·E M ThompsonF Spada
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Jun 22, 2017·Insect Biochemistry and Molecular Biology·Gyöngyi CinegeÉva Kurucz
Mar 30, 2001·The Journal of Biological Chemistry·F SpadaE M Thompson