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. 2021 Nov 24;9(3):e01738-21. doi: 10.1128/Spectrum.01738-21

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Copyright © 2021 Zou et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.

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FIG 1 — Growth and morphology of the soil ciliates Colpoda steinii and C. inflata reared at 18°C and 28°C. (A) Growth curves of C. steinii (arrows and arrowheads in red) and C. inflata (arrows and arrowheads in blue) depicting cell isolation time points at lag, log, plateau, and resting cyst phases. (B) Maximum growth rates of cells at log phase. Treatments not sharing common letters indicate significant differences (P < 0.05). (C) Morphology of vegetative cells, unstable cysts (UC), dividing cysts (DC), and resting cysts (RC) from life. (D) Microphotographs of fixed specimens after protargol impregnation. Cell and macronuclear sizes across life cycle stages, temperatures, and species. Scale bars = 20 μm.