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Light Microscopy of Living Neurosecretory Cells of the Corpus cardiacum of Schistocerca gregaria
Author(s) -
Krogh I. M.
Publication year - 1973
Publication title -
acta zoologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.414
H-Index - 37
eISSN - 1463-6395
pISSN - 0001-7272
DOI - 10.1111/j.1463-6395.1973.tb00444.x
Subject(s) - schistocerca , biology , locust , phase contrast microscopy , basal lamina , desert locust , anatomy , cytoplasm , microbiology and biotechnology , ultrastructure , botany , physics , optics
Desert locust corpora cardiaca have been treated with hydrolytic enzymes in saline solution in order to facilitate separation of individual intrinsic cells. Some of the enzymes digested the basal lamina covering the corpus cardiacum , and also the intercellular cementing substance. Living neurosecretory cells with axonal projections could be isolated and observed by phase contrast microscopy or by darkfield illumination. By morphological criteria the secretory cells should be characterized as neurons, and two different types of secretory neurons have been identified. Brownian movement of cytoplasmic particles occurs in damaged cells and is regarded as a post mortem phenomenon.