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| This is an example of a good streak for isolation using the "four corners" method. The small colonies here are of Staphylococcus epidermidis |
| This is not a great streak plate but it is serviceable, as there are a few isolated colonies. This plate would have been better if the loop had been flamed between each sector. | |
| This is an example of how NOT to streak for isolation. Scribbling is not streaking, and most likely will not result in isolated colonies | |
| This plate isolates two different colonies: Escherichia coli (the cream-colored) colonies, and Serratia marcescens (the red colonies).(粘质沙雷菌） | |
| This is a plate with Micrococcus luteus滕黄微球菌 , the yellow colonies. While this is a good streak for isolation, the plate has been contaminated. The large "fuzzy" colonies are fungal colonies. The lid may have been lifted too far away from the plate while streaking, or a draft may have caused the spores to fall into the plate. |
| This is an example of a good streak for isolation using the "four corners" method. The small colonies here are of Staphylococcus epidermidis This is not a great streak plate but it is serviceable, as there are a few isolated colonies. This plate would have been better if the loop had been flamed between each sector. This is an example of how NOT to streak for isolation. Scribbling is not streaking, and most likely will not result in isolated colonies This plate isolates two different colonies: Escherichia coli (the cream-colored) colonies, and Serratia marcescens (the red colonies).(粘质沙雷菌） This is a plate with Micrococcus luteus滕黄微球菌 , the yellow colonies. While this is a good streak for isolation, the plate has been contaminated. The large "fuzzy" colonies are fungal colonies. The lid may have been lifted too far away from the plate while streaking, or a draft may have caused the spores to fall into the plate. |
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