Leaves from the arc5 plastid division mutant of Arabidopsis thaliana were fixed, embedded, sectioned, reacted with antibodies to the FtsZ2-1 protein, a prokaryotic cell division protein that is a stru...

The plastids of plants germinated in the dark are termed etioplasts and possess quasi-crystalline structures termed prolammelar bodies that contain the phospholipid materials and chlorophyll precursor...

The plastids of plants germinated in the dark are termed etioplasts and possess quasi-crystalline structures termed prolammelar bodies that contain the phospholipid materials and chlorophyll precursor...

Cytoplasm of a green Trichodina that lives on the surface of a freshwater snail collected in central Illinois. In this view the abundant endosymbiotic zoochlorellae and a single endosymbiotic bacteriu...

Cytoplasm of a green Trichodina that lives on the surface of a freshwater snail collected in central Illinois. In this view the abundant endosymbiotic zoochlorellae and a single endosymbiotic bacteriu...

Leaves from wildtype Arabidopsis thaliana were fixed, embedded, sectioned, reacted with antibodies to the FtsZ1-1 protein (upper panels) or FtsZ-2 (lower panels), prokaryotic cell division proteins th...

A view of the endosymbiotic Chlorella of a green Trichodina that lives on the surface of a freshwater snail collected in central Illinois. In this image there is also an endosymbiotic bacterium. It ha...

Single computed x-y slice through tomographic volume of blue green algae exposed to low light conditions. Reconstruction shows the chloroplast and inner thylakoid membrane. Some electron dense struc...