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Table 2 Spatial distributions of aggregate structures in populations

From: The mechanisms responsible for 2-dimensional pattern formation in bacterial macrofiber populations grown on solid surfaces: fiber joining and the creation of exclusion zones

Population

examined

Number

of objects

Number1

of links (cm)

Slope2

Y-intercept2

(cm)

Mean link

length (cm)

8233

48

143

0.0068

0.29

0.85 (0.78–0.94)4

916–4445

72

201

0.0042

0.32

0.75 (0.70–0.80)

920–4005

84

240

0.0027

0.37

0.72 (0.68–0.76)

8126

93

286

0.0031

0.28

0.75 (0.71–0.80)

916–1505

94

222

0.0043

0.32

0.65 (0.61–0.70)

97–1425

128

359

0.0018

0.33

0.65 (0.63–0.69)

  1. 1. The number of length measurements between all neighboring pairs of structures. 2. Determined from curves such as those shown in Figure 7. 3. Obtained by inoculating at four locations in the Petri dish rather than at random. 4. The values between which the mean link length will lie in 99% of populations. 5. Fiber fragments were dispersed by vortexing in 10 ml fresh TB prior to transfer. 6. Fiber fragments were transferred by toothpick directly from the parent culture.