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Zinc phosphate granules in tissue surrounding the midgut of the barnacle Balanus balanoides |
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| Authors: | G. Walker P. S. Rainbow P. Foster D. L. Holland |
| Affiliation: | 1. N.E.R.C. Unit of Marine Invertebrate Biology, Marine Science Laboratories, Menai Bridge, Anglesey, UK 2. Department of Physical Oceanography, Marine Science Laboratories, Menai Bridge, Anglesey, UK |
| Abstract: | The chemical composition of inorganic granules found in parenchyma cells surrounding the midgut of adult Balanus balanoides (L.) was determined. X-ray microanalysis indicated the presence of magnesium, phosphorus, potassium, calcium, iron and zinc in the granules. A quantitative analysis of granule-rich pellets isolated from the midguts of adult barnacles showed that the granules were composed mainly of zinc phosphate, the remaining elements being minor constituents only. |
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