Chromium Absorption and Metabolism by the Crab, Podophthalmus Vigil

Sather, Bryant T.

doi:10.1016/b978-0-08-012122-2.50100-6

Cited by 4 publications

(1 citation statement)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are relatively a few studies which have clearly demonstrated the impact of chromium on crustacea and their ability to concentrate the metal. Data were obtained from the barnacle Balanus amphitrite (Barbaro et al 1978), the crab Podophthalmus vigil (Sather 1967), the grass shrimp Palaemonetes pugio (Fales 1978, Doughtie et al 1983, Doughtie & Rango Rao 1984; the two last papers demonstrate the structural and ultrastructural degenerative changes induced by hexavalant chromium in tissues such as the digestive gland, the gills and the mid gut. From our present study, no ultrastructural abnormalities were observed in nuclei and cellular organelles of gills, digestive gland and muscle.…”

Section: Discussionmentioning

confidence: 99%

Cellular and subcellular localization of chromium in the crab Liocarcinus puber (Brachyrhyncha) by transmission electron microscopy, secondary ion mass spectrometry and electron microprobe analysis

Chassard-Bouchaud

Hubert²,

Escaig

et al. 1995

Biometals

View full text Add to dashboard Cite

The swimming crab Liocarcinus puber (Crustacea Brachyrhyncha) was exposed for 2 weeks to CrCI3 (chromium occurs principally in the trivalent state in the natural environment). The gills, digestive gland and muscle were examined by several analytical techniques for cellular and subcellular localization of chromium. The techniques applied were secondary ion mass spectrometry (ion microscopy and ion microprobe analysis) associated with photon microscopy and X-ray spectrometry (electron microprobe analysis) together with transmission electron microscopy.The digestive gland was found to be free of chromium, whereas chromium was adsorbed onto the gill exoskeleton. The muscle was the only tissue with intracellular electron-dense precipitates with no surrounding membrane. The metal was detected in the heterophagic vacuoles of amoebocytes where it was associated with phosphorus and trapped in an unsoluble form. Mechanisms of chromium cellular and subceilular metabolism were compared between crabs and other aquatic organisms. L. puber does not appear to be a suitable bioindicator of chromium pollution because of molting and its low chromium bioaccumulation capability.

show abstract