Table 1. Open in new tab Means and SE...

Measurement

Component

S. tropicalis
Mean (SE)

P. montanus
Mean (SE)

N. beyeri
Mean (SE)

Across all species
(ANOVA p-value)

Volume fraction

({\hat{V}}_{V})

Nucleus

0.27 (0.03)

0.36 (0.03)

0.27 (0.03)

p = .102

Mitochondria

0.10 (0.01)

0.09 (0.01)

0.12 (0.01)

p = .218

Endoplasmic reticulum

0.06 (0.008)

0.07 (0.008)

0.04 (0.008)

p = .078

Golgi apparatus

0.002 (0.0001)

0.003 (0.0001)

0.002 (0.0001)

p = .481

Surface area density

(S_{V})

(μm² organellar SA/μm³ cellular V)

Cell^a

0.93 (0.06)

0.61 (0.06)

0.27 (0.06)

p = 8.23E-11^b

Nucleus

0.46 (0.04)

0.25 (0.04)

0.10 (0.04)

p = 5.14E-10^c

Mitochondria

1.19 (0.05)

1.01 (0.05)

1.15 (0.05)

p = .585

Endoplasmic reticulum

0.71 (0.08)

0.57 (0.08)

0.34 (0.08)

p = .007^d

Golgi apparatus

0.07 (0.02)

0.03 (0.02)

p = .320

Surface area to volume ratio (SA:V)
(μm² organellar SA/μm³ organellar V)

Nucleus

1.52 (0.20)

0.83 (0.19)

0.26 (0.19)

p = 4.34E-05^e

Mitochondria

12.31 (1.8)

11.54 (1.8)

12.57 (1.8)

p = .899

Endoplasmic reticulum

10.05 (1.9)

7.50 (1.9)

4.83 (1.9)

p = .568

Table 1.

Open in new tab

Means and SE for volume fraction, surface area density, and SA:V measurements of organelles and the whole cell, and ANOVA p-values for across-species comparisons of each measurement.

Measurement	Component	S. tropicalis Mean (SE)	P. montanus Mean (SE)	N. beyeri Mean (SE)	Across all species (ANOVA p-value)
Volume fraction $({\hat{V}}_{V})$	Nucleus	0.27 (0.03)	0.36 (0.03)	0.27 (0.03)	p = .102
	Mitochondria	0.10 (0.01)	0.09 (0.01)	0.12 (0.01)	p = .218
	Endoplasmic reticulum	0.06 (0.008)	0.07 (0.008)	0.04 (0.008)	p = .078
	Golgi apparatus	0.002 (0.0001)	0.003 (0.0001)	0.002 (0.0001)	p = .481
Surface area density $(S_{V})$ (μm² organellar SA/μm³ cellular V)	Cell^a	0.93 (0.06)	0.61 (0.06)	0.27 (0.06)	p = 8.23E-11^b
	Nucleus	0.46 (0.04)	0.25 (0.04)	0.10 (0.04)	p = 5.14E-10^c
	Mitochondria	1.19 (0.05)	1.01 (0.05)	1.15 (0.05)	p = .585
	Endoplasmic reticulum	0.71 (0.08)	0.57 (0.08)	0.34 (0.08)	p = .007^d
	Golgi apparatus	0.07 (0.02)	0.07 (0.02)	0.03 (0.02)	p = .320
Surface area to volume ratio (SA:V) (μm² organellar SA/μm³ organellar V)	Nucleus	1.52 (0.20)	0.83 (0.19)	0.26 (0.19)	p = 4.34E-05^e
	Mitochondria	12.31 (1.8)	11.54 (1.8)	12.57 (1.8)	p = .899
	Endoplasmic reticulum	10.05 (1.9)	7.50 (1.9)	4.83 (1.9)	p = .568

Measurement	Component	S. tropicalis Mean (SE)	P. montanus Mean (SE)	N. beyeri Mean (SE)	Across all species (ANOVA p-value)
Volume fraction $({\hat{V}}_{V})$	Nucleus	0.27 (0.03)	0.36 (0.03)	0.27 (0.03)	p = .102
	Mitochondria	0.10 (0.01)	0.09 (0.01)	0.12 (0.01)	p = .218
	Endoplasmic reticulum	0.06 (0.008)	0.07 (0.008)	0.04 (0.008)	p = .078
	Golgi apparatus	0.002 (0.0001)	0.003 (0.0001)	0.002 (0.0001)	p = .481
Surface area density $(S_{V})$ (μm² organellar SA/μm³ cellular V)	Cell^a	0.93 (0.06)	0.61 (0.06)	0.27 (0.06)	p = 8.23E-11^b
	Nucleus	0.46 (0.04)	0.25 (0.04)	0.10 (0.04)	p = 5.14E-10^c
	Mitochondria	1.19 (0.05)	1.01 (0.05)	1.15 (0.05)	p = .585
	Endoplasmic reticulum	0.71 (0.08)	0.57 (0.08)	0.34 (0.08)	p = .007^d
	Golgi apparatus	0.07 (0.02)	0.07 (0.02)	0.03 (0.02)	p = .320
Surface area to volume ratio (SA:V) (μm² organellar SA/μm³ organellar V)	Nucleus	1.52 (0.20)	0.83 (0.19)	0.26 (0.19)	p = 4.34E-05^e
	Mitochondria	12.31 (1.8)	11.54 (1.8)	12.57 (1.8)	p = .899
	Endoplasmic reticulum	10.05 (1.9)	7.50 (1.9)	4.83 (1.9)	p = .568

Note. Bold highlights significant differences (p < .05).

^aFor the whole cell, $S_{V}$ is equivalent to SA:V.

^bTukey post hoc tests show a significant difference between S. tropicalis and P. montanus (p = .002), between P. montanus and N. beyeri (p = .001), and between S. tropicalis and N. beyeri (p < .001).

^cTukey post hoc tests show a significant difference between S. tropicalis and P. montanus (p < .001), between P. montanus and N. beyeri (p = .014), and between S. tropicalis and N. beyeri (p < .001).

^dTukey post hoc tests show a significant difference between S. tropicalis and N. beyeri (p = .005).

^eTukey post hoc tests show a significant difference between S. tropicalis and P. montanus (p = .034) and between S. tropicalis and N. beyeri (p < .001).

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