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Surface ultrastructure of olfactory receptor sense hairs in the silkmoth, Antheraea pernyi
Author(s) -
POPOV V. I.,
NIKONOV A. A.,
AGAFONOVA N. K.,
FESENKO E. E.
Publication year - 1994
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1994.tb04322.x
Subject(s) - tubule , ultrastructure , biophysics , cuticle (hair) , etching (microfabrication) , dendrite (mathematics) , antheraea pernyi , chemistry , soma , layer (electronics) , materials science , anatomy , crystallography , composite material , biology , geometry , neuroscience , biochemistry , mathematics , gene , kidney , endocrinology
Summary The fine structure of silkmoth sense hair surfaces has been investigated by freeze etching with Pt/C rotary shadowing. To do this, the hydrophobic layer in the cuticle was removed using 20–25% methanol or ethanol. Freeze‐etch patterns of sense hair surfaces, as well as the pore structure and pore distribution, are shown. The hair surface has a nonhelical ‘band’ structure, in which every ‘band’ lies at an oblique angle with respect to the axis of the hair. Each ‘band’ is separated from its neighbour by a 30‐nm step. The average density of pores is 11·3 + 2·4 pores μm −2 . Freeze‐etch patterns of the single and multiple pore tubules are shown. Evidence for direct contact between the pore tubule and dendrite membrane of an olfactory receptor neuron is presented.