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Related Experiment Video

Updated: Sep 6, 2025

Bioenergetic Profile Experiment using C2C12 Myoblast Cells

Published on: December 6, 2010

Evolutionary bioenergetics of ciliates.

Michael Lynch¹, Paul E Schavemaker¹, Timothy J Licknack¹

¹Biodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, Arizona, USA.

The Journal of Eukaryotic Microbiology

|July 2, 2022

Summary

Organisms evolve diverse lifestyles by balancing fitness benefits with cellular construction costs. This study quantizes cellular costs in ciliates, revealing how resource allocation scales with cell size.

Keywords:

Paramecium Tetrahymena bioenergetics ciliates evolutionary cell biology osmoregulation ribosomes swimming motility

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Area of Science:

Evolutionary biology
Cell biology
Bioenergetics

Background:

Ecological studies often focus on fitness advantages of phenotypic traits.
Resource allocation and cellular construction costs are understudied in evolutionary contexts.
Ciliates offer a diverse model for studying cellular investments.

Purpose of the Study:

To quantify the energetic costs of cellular structures and functions in ciliates.
To understand how these cellular costs scale with cell size.
To provide a framework for analyzing resource allocation in evolutionary bioenergetics.

Main Methods:

Utilized observations from diverse ciliate species.
Applied principles from evolutionary bioenergetics.
Developed a general estimator for cellular costs per cell cycle (ATP equivalents).

Main Results:

Provided a robust estimator for total cellular cost per cell cycle.
Analyzed scaling of investments in macronuclear genomes, ribosomes, membranes, osmoregulation, cilia, and motility with cell size.
Identified key cost drivers in ciliate cellular biology.

Conclusions:

Cellular construction and operating costs are critical factors in organismal evolution.
The developed bioenergetic framework can be extended to other traits and lineages.
Further research can refine understanding of resource allocation trade-offs.