Table 2 Cell morphotypes used in this study to classify total hemocyte populations in Styela plicata
Cell morphotype | Diameter (µm) | Percentage (%) | Possible types | Description |
|---|---|---|---|---|
Small-round cells | 2.8–6 | 16.7 ± 9.3 | Lymphocyte-like cells, hemoblasts | Circular cells with a high nucleus/cytoplasm ratio. Granules scarce or absent |
Granular amoeboid cells | 4–8 | 9.9 ± 5.9 | Granulocytes and amoeboid cells in differentiation | Amoeboid cytoplasm with granular contents |
Large granulocytes | 5–8.6 | 46.2 ± 9.9 | Fully differentiated granulocytes, univacuolar refractile granulocytes | Rounded contour, numerous granular structures in cytoplasm, a large refractile vacuole may be present |
Vacuolated cells | 5–20 | 31.4 ± 8.8 | Simple univacuolar cells, compartment cells, morula cells | Cells with one or more prominent basophilic vacuoles in the cytoplasm |
Pigmented cell | 8–13 | 3.5 ± 3.9 | Pigment cell | Large cells, cytoplasm saturated with compartments filled with amber pigment |