Adipokinetic hormone and AKH-like peptide demonstrated in the corpora cardiaca and nervous system of Locusta migratoria by immunocytochemistry
Cell Tissue Res.. 1983-03-01; 230(1):
DOI: 10.1007/BF00216028
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1. Cell Tissue Res. 1983;230(1):67-76.
Adipokinetic hormone and AKH-like peptide demonstrated in the corpora cardiaca
and nervous system of Locusta migratoria by immunocytochemistry.
Schooneveld H, Tesser GI, Veenstra JA, Romberg-Privee HM.
An antiserum was raised against tyrosine-adipokinetic hormone ([Tyr1]-AKH). In
immunohistochemical procedures, it revealed the AKH cells in the glandular lobes
of the corpora cardiaca (CC) of Locusta migratoria with high specificity. In
addition, an immunologically related peptide was detected in certain neurons of
the central nervous system which suggests that this AKH-like peptide may have a
neurotransmitter function. The glandular lobes contain immunoreactive AKH cells
in all post-embryonic stages, and no essential differences in morphology and
distribution of the cells in nymphs and adults were seen. The amount of AKH,
stored predominantly in the cell projections, differ widely among cells and
individuals. The brain of adults and nymphs contains several small populations of
intensely stained neurons. In last-instar and adult specimens, each half contains
10-12 « normal »-sized neurons in the protocerebrum (including the optic lobe) and
deutocerebrum, and in addition 15-18 small reactive neurons. Their axons and
numerous branchings traverse the neuropile of proto-, deuto-, and tritocerebrum,
except for the pedunculate bodies and antennal lobes. Some of the axons run into
the storage lobe of the CC; it is unknown if their content is released into the
haemolymph. Other axons run into the ganglia of the stomatogastric nervous system
and into the circumoesophageal connectives. The suboesophageal ganglion also
contains 8 immunoreactive neurons. It is unknown to which extent the
immunoreactive substances in glandular and nervous tissue are chemically and
physiologically related.
DOI: 10.1007/BF00216028
PMID: 6342796 [Indexed for MEDLINE]