GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Mineral congregations, “spherites” in the midgut gland ofCoelotes terrestris (Araneae): Structure, composition and function (1988)
    Springer
    Protoplasma 143 (1988), S. 43-50 
    Details
    ISSN: 1615-6102
    Keywords: Coelotes terrestris ; Midgut gland ; Spherites ; Histochemistry ; Calcium phosphate ; Detoxification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Spherites in the digestive and secretory cells of the midgut gland of the agelenid spiderCoelotes terrestris were studied by electron microscopy and histochemical methods. Spherites measured 1–6 μm in diameter and were characterized by alternating layers of electron dense and electron lucent material. The main-components of spherites were calcium phosphates and calcium carbonates. Guanine and barium, as well as aminopeptidase and alkaline phosphatase were also present. The matrix consisted of proteins and carbohydrates. Numerous spherites were found together with excretory products within the excretory vacuoles of the digestive cells. Spiders fed with food containing lead, showed deposition of the metall in the spherites. It is then proposed that spherites, aside from their role in storing calcium and other ions, may function in detoxification of heavy metals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01282958
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The stress-70 protein family in diplopods: induction and characterization (1996)
    Springer
    Journal of comparative physiology 165 (1996), S. 622-627 
    Details
    ISSN: 1432-136X
    Keywords: Cadmium ; Stress-70 ; hsp70 ; Two-dimensional gel electrophoresis ; Diplopod, Julus scandinavius
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract To induce stress-70 proteins (hsp70), adults of the millipede Julus scandinavius (Diplopoda) were exposed to leaf litter contaminated with different concentrations of Cd2+ (10, 30, 50 and 60 mg·kg-1 as CdCl2). The expression of hsp70 was investigated by semiquantitative and qualitative biochemical methods. After SDS-gel electrophoresis and Western blotting a subsequent digital image analysis showed that increasing dietary concentrations of Cd2+ resulted in elevated levels of hsp70, which in turn indicated proteotoxic condition. Qualitative results were obtained by two-dimensional gel electrophoresis. A stress-70 protein family, similar to that of other arthropods, was detected in Julus scandinavius: at least five different proteins with an approximate molecular weight of 68, 69, 70, 77, and 78 kDa could be distinguished after heat shock as well as after Cd2+ exposure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00301130
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...