The neurosecretory cells, A, B and C, of the pars intercerebralis in O. chrysis (Selys) differ from one another in their neurosecretory material (NSM). The cerebral NSM is a muco-proteinaceous complex with glycogen entirely absent. Arginine is present in the NSM of all the above neurosecretory cells. However, the NSM of A cells contains a higher concentration of proteins having cystine or cysteine amino acids than that of the C cells; while the NSM of B cells contains virtually only those proteins which are rich in basic amino acids with negligible amounts of cystine or cysteine amino acids.


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Societas Internationalis Odonatologica

V.K. Thakare, & D.B. Tembhare. (1975). Histochemistry of the neurosecretory cells of the pars intercerebralis of the dragonfly, Orthetrum chrysis (Selys) (Anisoptera: Libellulidae). Odonatologica, 4(4), 225–235.