Fig. 1.From: A non-photosynthetic green alga illuminates the reductive evolution of plastid electron transport systemsA novel strain of non-photosynthetic Volvocales green algae, chlamydomonad sp. NrCl902. a Light microscopic observation of a cell. Bar = 10 μm. b Light microscopic observation of the orange eyespot, indicated by a closed double arrowhead, at the anterior part of a cell. Bar = 10 μm. c Transmission electron microscopy of non-photosynthetic plastids containing starch granules. Bar = 1 μm. Arrowheads show the membranes enclosing starch granules. S: starch granule, N: nucleus, M: mitochondrion, P: plastid. d DIC, e SYBR Green, f Mitotracker, g Merge. n: nuclear DNA. SYBR Green fluorescence signals other than the nuclear DNA are highly likely organellar DNAs. Bar = 5 μm. Double arrowheads indicate SYBR Green signal not overlapped with Mitotracker signal, suggesting presence of plastid DNA (pl nucleoid)Back to article page