Development of mitochondria-rich cells in gill epithelium of coho salmon Oncorhynchus kisutch during seawater adaptation Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/6q182p302

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • A study on the cellular differentiation of the gill structure in juvenile coho salmon (O. kisutch) with emphasis on the excretion of monovalent ions was performed upon animals maintained under both seawater and freshwater environments. 1. The excretion rate of sodium-24 was observed to be higher for animals adapted to sea water than for fresh water. 2. The rate of cellular renewal in the gill tissue determined through the utilization of tritiated thymidine that was incorporated into newly synthesized deoxyribonucleic acid. Animals adapted to seawater exhibited a greater rate of incorporation and turnover of labeled deoxyribonucleic acid than the freshwater animals. 3. Isolation and assay of enzymatic activity of gill mitochondria obtained from animals of the two different salinities suggested that seawater animals had a greater mitochondrial activity. 4. These experimental findings support the concept that during the adaptation to a hyperosmotic environment, the rise in the osmotic and ionic properties of the internal body fluids causes an acceleration of cellular differentiation within the gill filamental epithelium. This could result in either the formation of new cells laden with mitochondria and /or increased mitochondrial activity in the existing mitochondria-rich cells.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Katy Davis(kdscannerosu@gmail.com) on 2014-04-28T23:10:28Z (GMT) No. of bitstreams: 1 LinDavidHungYu1966_Redacted.pdf: 1437636 bytes, checksum: a5f6eeee93c6416dd1bc211940bb386b (MD5)
  • description.provenance : Rejected by Katy Davis(kdscannerosu@gmail.com), reason: Replace on 2014-04-25T14:52:13Z (GMT)
  • description.provenance : Submitted by Alex McFerrin (amscannerosu@gmail.com) on 2014-04-24T19:47:32Z No. of bitstreams: 1 YuLineDavidH1966_Redacted.pdf: 1437636 bytes, checksum: a5f6eeee93c6416dd1bc211940bb386b (MD5)
  • description.provenance : Made available in DSpace on 2014-04-28T23:10:28Z (GMT). No. of bitstreams: 1 LinDavidHungYu1966_Redacted.pdf: 1437636 bytes, checksum: a5f6eeee93c6416dd1bc211940bb386b (MD5) Previous issue date: 1965-09-27
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-04-25T15:09:50Z (GMT) No. of bitstreams: 1 LinDavidHungYu1966_Redacted.pdf: 1437636 bytes, checksum: a5f6eeee93c6416dd1bc211940bb386b (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-04-25T14:05:28Z (GMT) No. of bitstreams: 1 YuLineDavidH1966_Redacted.pdf: 1437636 bytes, checksum: a5f6eeee93c6416dd1bc211940bb386b (MD5)
  • description.provenance : Submitted by Alex McFerrin (amscannerosu@gmail.com) on 2014-04-25T15:07:58Z No. of bitstreams: 1 LinDavidHungYu1966_Redacted.pdf: 1437636 bytes, checksum: a5f6eeee93c6416dd1bc211940bb386b (MD5)

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items