| 3. Microscopic description of filamentous forms |
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Record the nature of the sample: field sample or cuture.
If it is a culture indicate if it was grown on liquid or solid medium, the composition of the medium and the age of the culture |
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Record and describe ramifications if any.
Determine the kind of branching |
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Describe the trichomes and filaments by choosing one option for each of the first three descriptors:
- Grouping
- Shape
- Polarity. |
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Continue to d escribe the trichomes and filaments by choosing one option for each of the other three descriptors:
- Tapering
- Sheath
- Motility
If needed record the range of legth of the filaments. |
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Record the shape of the vegetative cells |
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Record the size of the vegetative cells. |
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Record eventually the shape of the apical cell and the presence of abnormal cells. |
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Record the presence and disposition of the heterocysts.
Record the shape of the hetrocysts and their size according to the chart used for vegetative cells. |
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Record the presence and disposition of akinetes and spores.
Record their shape and their size according to the chart used for vegetative cells. |
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Record the presence and morphology of hormogonia. |
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1. Criteria for solid cultures
2. Criteria for liquid cultures
3. Microscopic description
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