Abstract:
:The so-called 'basement membrane' of arthropod compound eyes is known to be of heterogeneous origin (Odselius and Eloffson 1981). A major contribution in Diptera with open rhabdoms is provided by a pigmented component which lies at the basal end of the extracellular space of each ommatidium and fills it, the glial plug. Ancillary components consist of the expanded tips of cone cell processes. Each glial plug exhibits two distinct regions: ramifying processes extend into the extracellular space and contain numerous pigment granules, while proximally the cytoplasm is devoid of granules but packed with bundles of cross-linked microfilaments that bind the fluorescent F-actin probe NBD-phallacidin strongly and antibodies to scallop actin weakly. Cone cell expansions also contain microfilaments and exhibit the same binding properties. The proximal faces of the cells of the glial plugs and of the cone cell expansions are covered with a coarsely fibrillar extracellular matrix. Some actin bundles appear to be attached to the plasma membranes at their ends, although the reality of this arrangement is still in question. Cellular components of the basement membrane are bonded together by their extracellular matrices, so that collectively they provide a reinforced network that retains the retina. Bundles of axons from the photoreceptors and tracheae that supply the retina with tracheoles pass through the spaces in this network.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Blest AD,De Couet HGdoi
10.1007/BF00222184subject
Has Abstractpub_date
1983-01-01 00:00:00pages
325-36issue
2eissn
0302-766Xissn
1432-0878journal_volume
231pub_type
杂志文章abstract::Mole rat bone marrow cells and peritoneal eosinophils are used to study granule morphological maturation by quantitative microscopy. The bulk eosinophil granule content is pre-stored in unique granular structures known as crystalloid or secondary granules. Mole rat eosinophil granules exhibit the basic structure of an...
journal_title:Cell and tissue research
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journal_title:Cell and tissue research
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abstract::Whether an axon will regenerate after it is cut depends on the balance between the intrinisic ability of the axon to regrow and the permissiveness of the environment surrounding it. The permissiveness of the environment is determined by the glial cells at the site of injury, and in the CNS both oligodendrocytes and as...
journal_title:Cell and tissue research
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1976-10-13 00:00:00
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1975-08-01 00:00:00
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
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更新日期:1979-09-03 00:00:00
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journal_title:Cell and tissue research
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更新日期:1979-02-15 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1977-12-19 00:00:00
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journal_title:Cell and tissue research
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更新日期:1996-08-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1983-01-01 00:00:00
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journal_title:Cell and tissue research
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更新日期:1980-01-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:
更新日期:1977-12-13 00:00:00
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更新日期:1983-01-01 00:00:00
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journal_title:Cell and tissue research
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更新日期:1988-07-01 00:00:00
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