The pyrenoid is evidently concerned in the formation of the chromatophore, or in its division.
A pyrenoid lies in a fold of the chromatophore on the dorsal part.
chromatophore single, covering the entire interior of the frustule, except the ventral part of the zone and the median lines.
The cell-wall and the chromatophore bands divide, each nucleus passes to the centre, and two new cells are formed.
Schmitz states that the chromatophore is thickened in the middle and contains a pyrenoid.
chromatophore chro·mat·o·phore (krō-māt'ə-fôr')
A specialized pigment-bearing organelle in certain photosynthetic bacteria and cyanobacteria.
A pigment-bearing phagocyte found chiefly in the skin, mucous membrane, and choroid coat of the eye, as well as in melanomas. Also called pigment cell.
Variant of chromophore.