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Ultrastructural changes in the lysosomal-vacuolar system in digestive cells of Mytilus edulis as a response to increased salinity

Ultrastructural changes in the lysosomal-vacuolar system in digestive cells of Mytilus edulis as... 227 87 87 2 2 R. K. Pipe M. N. Moore Institute for Marine Environmental Research Natural Environment Research Council Prospect Place, The Hoe PL1 3DH Plymouth Devon England Abstract The effects of increasing salinity on the ultrastructural morphology of the lysosomal-vacuolar system in digestive cells of the common mussel Mytilus edulis were investigated in order to relate structural changes to previous biochemical and cytochemical observations. After 3 h of increased salinity, from 21 to 35%., the digestive cells showed an increase in numbers of heterolysosomes. There was some evidence of digestive cell breakdown, the contents forming membrane-bound bodies and being released into the tubule lumen. After 12 h of increased salinity, heterolysosomes were prevalent in the digestive cells. There was increased evidence for digestive-cell breakdown, many of the tubule lumina being packed with membrane-bound bodies. It is concluded that increasing salinity from 21 to 35%. stimulates the lysosomal-vacuolar system, as a result of autophagocytosis or apoptosis; this is consistent with the hypothesis that intracellular, lysosomally-mediated, catabolism of proteins is a source for free amino acids during the adaptation of mussels to increased salinity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Marine Biology Springer Journals

Ultrastructural changes in the lysosomal-vacuolar system in digestive cells of Mytilus edulis as a response to increased salinity

Pipe, R.; Moore, M.
Marine Biology , Volume 87 (2) – Jan 1, 1985
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References (19)

Publisher
Springer Journals
Copyright
Copyright © 1985 by Springer-Verlag
Subject
Life Sciences; Biomedicine general; Oceanography; Ecology; Microbiology; Zoology
ISSN
0025-3162
eISSN
1432-1793
DOI
10.1007/BF00539423
Publisher site
See Article on Publisher Site

Abstract

227 87 87 2 2 R. K. Pipe M. N. Moore Institute for Marine Environmental Research Natural Environment Research Council Prospect Place, The Hoe PL1 3DH Plymouth Devon England Abstract The effects of increasing salinity on the ultrastructural morphology of the lysosomal-vacuolar system in digestive cells of the common mussel Mytilus edulis were investigated in order to relate structural changes to previous biochemical and cytochemical observations. After 3 h of increased salinity, from 21 to 35%., the digestive cells showed an increase in numbers of heterolysosomes. There was some evidence of digestive cell breakdown, the contents forming membrane-bound bodies and being released into the tubule lumen. After 12 h of increased salinity, heterolysosomes were prevalent in the digestive cells. There was increased evidence for digestive-cell breakdown, many of the tubule lumina being packed with membrane-bound bodies. It is concluded that increasing salinity from 21 to 35%. stimulates the lysosomal-vacuolar system, as a result of autophagocytosis or apoptosis; this is consistent with the hypothesis that intracellular, lysosomally-mediated, catabolism of proteins is a source for free amino acids during the adaptation of mussels to increased salinity.

Journal

Marine Biology – Springer Journals

Published: Jan 1, 1985

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