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Fig. 3 | BMC Genomics

Fig. 3

From: Molecular machineries of ciliogenesis, cell survival, and vasculogenesis are differentially expressed during regeneration in explants of the demosponge Halichondria panicea

Fig. 3

Ultrastructure of ‘no-osculum explants’ (NOE) with electron microscopy. a SEM micrograph showing disarrayed choanocyte chambers (black arrows) and abundance of collagen (co). b Canal (ca) lined by a flat pinacocyte (pi) with an archaeocyte (ar) in the vicinity. c Single choanocyte (black arrow) from a disarrayed chamber with the flagellum oriented towards the mesohyl where spicules lie (sp). d Disarrayed choanocytes (black arrows) in the mesohyl. e Archaeocyte with digestive vesicle (dv) containing several types of prokaryotes (white arrows), and a nucleolated nucleus (n). f Choanocyte chamber organized with choanocytes (ch) in close contact. Note the absence of flagella and archaeocytes (ar) in the vicinity and the nucleolated nucleus in one of the choanocytes (white arrow)

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BMC Genomics

ISSN: 1471-2164

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