Lysosomes And The Response By Mytilus-Edulis-L To An Increase In Salinity

Bayne, BL, Moore, MN and Koehn, RK 1981 Lysosomes And The Response By Mytilus-Edulis-L To An Increase In Salinity. Marine Biology Letters, 2 (4). 193 - 204.

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Cytochemical observations and measurements on cell-free suspensions of lysosomes from the digestive gland of Mytilus edulis showed a reduced latency of the lysosomal enzyme beta -N-acetyl-hexosaminidase 12h after mussels were transferred from 21 to 35%o salinity, but showed no change up to 6 h after transfer. There was a transient alteration in the form of the latency curve after 6 h at high salinity, signifying a gradual change in membrane integrity. Free hexosaminidase activity increased, 12 h after the salinity rise. The lysosomes were permeable to amino acids when ATP was present; permeability increased following the rise in salinity. The concentration of ninhydrin-positive substances in the lysosomes increased 6 h after transfer and then, between 6 and 12 h, the concentration declined. The results are consistent with the hypothesis that lysosomal hydrolysis is a source of free amino acids during the adaptation of mussels to increased salinity.

Item Type: Publication - Article
Divisions: Plymouth Marine Laboratory > Other (PML)
Depositing User: EPrints Services
Date made live: 11 Feb 2014 15:54
Last Modified: 06 Jun 2017 16:03

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