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. 2018 Dec 6;1:219. doi: 10.1038/s42003-018-0220-6

Table 2.

Minimum Information Standard for Engineered Organism Experiments (MIEO) v0.1, with Group 3 factors and levels as an example (Fig. 1a)

MIEO category Factor Level
Media components (R) Yeast extract 24 g L−1
Yeast extract source Sigma Y1625-250G, Lot SLBR9838V
Glycerol 5 g L−1
Magnesium sulfate 0.12 g L−1
Tryptone 12 g L−1
Potassium phosphate 2.28 g L−1
Dipotassium phosphate 12.7 g L−1
Sodium chloride 6.63 g L−1
Water DI water (18 MΩ-cm)
Media properties (O) pH 7.2
Buffer capacity 90 mmol L−1
Osmolality 750 mmol kg−1
Container geometry (R) Type 96-well plate
Well shape Square
Well bottom Round
Well volume 2.5 mL
Fill volume 10% (0.25 mL)
Cover AeraSeal
Container shaking (R) Shaking speed 460 rpm
Shaking diameter 12.5 mm
Shaking mode Orbital
Time (R) Growth time 48 h
Environment (R) Temperature 30 °C
Relative humidity 80%
Selective agents (O) Antibiotic type Chloramphenicol
Antibiotic concentration 25 μg mL−1
Inoculum (R) Concentration at inoculation OD600 = 0.01
Age of inoculum at inoculation 16 h
Inducers (O) None None

The nine MIEO factor categories are given, along with whether their reporting is required (R) or optional (O). Factors and their level are reported