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Monitoring Bacterial Colonization and Maintenance on Arabidopsis thaliana Roots in a Floating Hydroponic System

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Structure, function, and long-term maintenance of the isolated turtle colon.

M E LeFevre, L Reisman

The Journal of Experimental Zoology

|March 1, 1978

Summary

Turtle colon tissue can be maintained in vitro for five days. This study reveals insights into the tissue

Area of Science:

Physiology
Cell Biology
Gastroenterology

Background:

The turtle colon is a model for studying ion transport.
Understanding long-term in vitro tissue viability is crucial for physiological research.

Purpose of the Study:

To establish a method for long-term in vitro maintenance of turtle colonic mucosa.
To investigate the physiological and morphological characteristics of the tissue over time.

Main Methods:

Maintenance of turtle colonic mucosal sacs in enriched bathing solutions for up to 5 days.
Measurement of transepithelial potential difference (PD).
Assessment of ion transport (Na+, H2O, Ca2+) and tissue morphology.

Main Results:

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A mean maximum PD of 126 mV was achieved in enriched Ringer solution with tissue-culture medium.

Sodium transport in excess of water was observed, leading to a dilute mucosal solution.

Stripped, normally oriented tissue demonstrated the highest PD and lowest water content.

Conclusions:

Turtle colonic mucosa can be successfully maintained in vitro for extended periods.
The study provides valuable data on the physiology and morphology of the turtle colon.
Established methods allow for further investigation into colonic transport mechanisms.