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Table 2 Ultrastructural Features of Leydig Cells during annual reproductive cycle of Chinese soft-shelled turtle

From: LIPOPHAGY: a novel form of steroidogenic activity within the LEYDIG cell during the reproductive cycle of turtle

Features Reproductive phase Hibernation phase
Cluster Area / mm2 0.72 ± 0.1 1.5 ± 0.2
Nucleus Round with smooth nuclear membrane (diameter = 7.1 ± 0.24 μm) Oval to elliptical with irregular nuclear membrane (diameter = 6.9 ± 0.35 μm)
Lipid droplets Few (diameter = 0.84 ± 0.027 μm) Numerous (diameter = 1.1 ± 0.08 μm)
Mitochondria Tubulo-vesicular cristae
SER Tubule-vesicular Mainly tubular
Surface Less Interdigitation space (finger like protrusions) More Interdigitation space (finger like protrusions)
Arranged Cluster Cluster