A time lapse experiment of Saccharomyces cerevisiae expressing GFP tagged Cln2. Cln2 is a G1 cyclin involved in regulation of the cell cycle; activates Cdc28p kinase to promote the G1 to S phase trans...

A time lapse experiment of Saccharomyces cerevisiae expressing GFP tagged Cln2. Cln2 is a G1 cyclin involved in regulation of the cell cycle; activates Cdc28p kinase to promote the G1 to S phase trans...

A time lapse experiment of Saccharomyces cerevisiae expressing GFP tagged Cln2. Cln2 is a G1 cyclin involved in regulation of the cell cycle; activates Cdc28p kinase to promote the G1 to S phase trans...

Colpoda is a soil ciliate and this micrograph is characterized by numerous mucocysts and food vacuoles containing bacteria in various stages of digestion. This electron micrograph is near the posterio...

Calcium and Cleavage Furrows, animal pole view. Fertilized zebrafish eggs were collected within 5 min of spawning, enzymatically dechorionated, and injected with approximately 0.9 nl of a 1% solution...

This movie shows the "yolk flash". The apparently whole-embryo calcium pulse appears to initiate over a widespread area of blastoderm, possibly earliest at the animal pole, and then spreads first to ...

A movie of phagosome neutralization visualized using FITC-yeast. Amoebae of Dictyostelium discoideum were fed living budding yeast (S. cerevisiae strain TH2-1B) that had been labeled with fluorescein ...

Cytochalasin B blocks DV release from cytopharynx. In this micrograph a very large nascent vacuole has been retained at the cytopharynx of this cell that had been exposed to cytochalasin B. Many acido...

Starved Dictyostelium cells lacking both guanylyl cyclases (GCase A and GCase), but expressing GCase with an inactivated catalytic domain (sGCΔCat) and in medium supplemented with 60 µM LY294002 (a ...

A view of the right side of the cytopharynx showing the groove and its associated microtubules running longitudinally along the groove (for cross sections see Allen, J. Ultrastruct. Res. 63:64-78, 198...