Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

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Neuhüser, T. et al.

Responsiveness of the adult cricket (Gryllus bimaculatus and Acheta domesticus) retrocerebral complex to allatostatin-1 from a cockroach, Diploptera punctata.

Brain-retrocerebral complexes of female crickets, Gryllus bimaculatus and Acheta domesticus, treated with antibody to allatostatin-1 from a cockroach, Diploptera punctata, show extensive immunoreactivity. The results suggest that allostatins or allatostatin-like molecules are produced in neurosecretory cells of the brain and are delivered to the corpora allata through nervous connections and/or via haemolymph. Radiochemical measurements of juvenile hormone III biosynthesis by isolated corpora cardiaca-corpora allata complexes from adult G. bimaculatus have been used to demonstrate an in vitro sensitivity of these glands to allatostatin-1 from D. punctata. Allatostatin-1 is a relatively potent inhibitor of juvenile hormone III biosynthesis in corpora allata of both young adult females and males. In glands taken from 3-day virgin females, 50% inhibition of hormone biosynthesis is reached at ca. 3 nmol.l-1 allatostatin-1. The inhibitory action of allatostatin-1 is rapid, dose-dependent and reversible. Addition of 200 mumol.l-1 farnesol to the incubation medium prevents inhibition of juvenile hormone III biosynthesis by allatostatin-1. Juvenile hormone III biosynthesis by isolated corpora allata of 3-day female house crickets, A. domesticus, is also susceptible to inhibition by 1 mumol.l-1 allatostatin-1.[1]

References

Responsiveness of the adult cricket (Gryllus bimaculatus and Acheta domesticus) retrocerebral complex to allatostatin-1 from a cockroach, Diploptera punctata. Neuhüser, T., Sorge, D., Stay, B., Hoffmann, K.H. J. Comp. Physiol. B, Biochem. Syst. Environ. Physiol. (1994) [Pubmed]

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