Download original image
Stages 1 and 2 of vitellogenesis in C. metoecus. (1) An immature vitellocyte (Stage 1) at the periphery of the follicle. The nucleus is filled with heterochromatin and the cell possesses a high nucleo-cytoplasmic ratio. Scale bar = 1 μm. (2) Immature vitellocyte at first stage of maturation filled with ribosomes, mitochondria, and few endoplasmic reticulum saccules. Scale bar = 1 μm. (3) Electron micrograph of second stage of vitelline cells’ maturation (arrowheads: basal lamina). Scale bar = 1 μm. (4) Part of the cytoplasm of a cell at second stage of maturation showing Golgi complexes and granular endoplasmic reticulum. Scale bar = 1 μm. GC: golgi complex; GER: granular endoplasmic reticulum; Hch: heterochromatin; M: mitochondrion; N: nucleus; Nl: nucleolus; SG: shell globule.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.