ISSN:
1432-0878
Keywords:
Abdominal nerve neurohaemal area
;
FMRFamide
;
Immunogold-labelling
;
Serotonin
;
Ultrastructure
;
Rhodnius prolixus (Insecta)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract The ultrastructure of neurohaemal areas on abdominal nerves of the blood-sucking bug Rhodnius prolixus was investigated. Four types of axon terminals were found, distinguished by the morphology of their neurosecretory granules. By use of post-embedding immunogold labelling, granules in Type I axon terminals were shown to contain serotonin-like immunoreactive material, and granules in Type II axon terminals were shown to contain FMRFamide-like immunoreactive material. There was no colocalization of these materials. It is suggested that Type III terminals contain peptidergic diuretic hormone, which has previously been reported to be present in electron-dense neurosecretory granules in this neurohaemal area. The identity of material in Type IV terminals is unknown.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00305786
