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Ultrastructural localization of unique neurosecretory granules in the corpora cardiaca of the stable fly, Stomoxys calcitrans , and the Tsetse Fly, Glossina morsitans
Author(s) -
Meola Shirlee M.,
Pendleton Michael W.,
Langley Peter A.,
Lovering Sandra L.
Publication year - 1999
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/(sici)1097-4687(199905)240:2<155::aid-jmor6>3.0.co;2-d
Subject(s) - stomoxys , stable fly , ultrastructure , tsetse fly , biology , glossina morsitans , electron microscope , anatomy , microbiology and biotechnology , zoology , botany , muscidae , physics , optics
Ultrastructural analysis of the corpora cardiaca of the stable fly, Stomoxys calcitrans, and the tsetse fly, Glossina morsitans , revealed the presence of elementary neurosecretory granules (ENG) unique to the intrinsic neurosecretory cells (INC) of these species. In addition to electron‐dense spheres, the INC of the corpus cardiacum of the stable fly contain electron‐dense angular granules, either square or rectangular in shape, while the INC of the tsetse fly contain electron‐dense spindle‐shaped ENG. The distinctive granules of these INC can be traced within nerves to their sites of storage and release, eliminating the need for labeling with artificial probes. Although the INC of the corpus cardiacum of most species have been found to be fuchsinophilic, neither the INC of the stable fly nor the tsetse fly are aldehyde‐fuchsinophilic. These peptigenic cells offer neuroendocrinologists a unique opportunity to study the physiology and biochemistry of neurosecretory cells. J. Morphol. 240:155–168, 1999. Published 1999 Wiley‐Liss, Inc.