ISSN:
1570-7458
Keywords:
Corpora allata
;
corpus allatum control
;
corpus allatum activity
;
corpus allatum innervation
;
allatotropin
;
allatostatin
;
juvenile hormone
;
juvenile hormone biosynthesis
;
neurosecretory cells
;
lateral neurosecretory cells
;
brain cauterization
;
nerve dissection
;
retrograde filling
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Conclusions and future research There is now quite substantial evidence that the MNSC and the LNSC produce CA regulatory substances which are transported along axons and released in the immediate vicinity of the gland cells and that this system forms the most important means of CA control from the brain. The putative allatostatins and allatotropins are most probably neuropeptides. Isolation and identification of these substances are priorities in the coming years. The neuroendocrinological aspects, such as the precise rôle of the MNSC and the LNSC in different species; whether allatotropins and allatostatins arise from a single precursor molecule, and the dynamics of release of the substances from the nerve terminals, provide highly interesting topics. Furthermore, questions concerning control mechanisms of JH-biosynthesis at the cellular and molecular level, including the role of second messengers, the rate limiting steps in the biosynthetic pathway, and the regulation of gland growth still need to be clarified.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00186995
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