The first culture of P. multimicronucleatum which I had obtained from Carolina Biological Supply House contained a bacterial endosymbiont that resided specifically in the space between the two membran...

The contractile vacuole pore is supported on its cytosolic side by a coil of microtubules and other microtubules extend from the pore to the CV membrane. The plasma membrane and CV membrane cover the ...

A dividing Didinium nasutum. This large ciliate is capable of engulfing Paramecium. It has a thick ectoplasm containing numerous mucocysts embedded in its extensive epiplasm. Its external surface is c...

The contractile vacuole pore is supported on its cytosolic side by a coil of microtubules and other microtubules extend from the pore to the CV membrane. The plasma membrane and CV membrane cover the ...

Spiroplasmas are bacteria in the Class Mollicutes that are frequently associated with insects and/or plants. This electron micrograph shows a negatively stained preparation of spiroplasma-like organis...

Spiroplasmas are bacteria in the Class Mollicutes that are frequently associated with insects and/or plants. This scanning electron micrographs shows symbiotic/ commensal spiroplasma-like organisms (S...

Spiroplasmas are bacteria in the Class Mollicutes that are frequently associated with insects and/or plants. These electron micrographs show apparent symbiotic/ commensal spiroplasma-like organisms (S...

Epithelial cells (ec) of the midgut. Spiroplasmas are bacteria in the Class Mollicutes that are frequently associated with insects and/or plants. These electron micrographs show symbiotic/ commensal ...

Spiroplasmas are bacteria in the Class Mollicutes that are frequently associated with insects and/or plants. These electron micrographs show apparent symbiotic/ commensal spiroplasma-like organisms (S...

Epithelial cells (ec) of the midgut. Spiroplasmas are bacteria in the Class Mollicutes that are frequently associated with insects and/or plants. These electron micrographs show symbiotic/ commensal ...