At cyst formation in the 'giant' unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds of mitosis prior to gamete formation. Initially t...

At cyst formation in the 'giant' unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds of mitosis prior to gamete formation. Initially t...

At cyst formation in the 'giant' unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds of mitosis prior to gamete formation. Initially t...

At cyst formation in the 'giant' unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds of mitosis prior to gamete formation. Initially t...

At cyst formation in the 'giant' unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds of mitosis prior to gamete formation. Initially t...

Thin section of a wildtype chloroplast of Arabidopsis thaliana showing the characteristic distribution of thylakoids membranes in stacked grana (black arrow) and unstacked stromal regions (white arrow...

Thin section of a chloroplast of Arabidopsis thaliana lacking the FZL protein, a member of the dynamin superfamily of proteins. FZL is related to FZO, a protein that mediates fusion between mitochondr...

At cyst formation in the 'giant' unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds of mitosis prior to gamete formation. Initially t...

At cyst formation in the 'giant' unicellular green alga Acetabularia, each cyst contains a single nucleus which subsequently undergoes several rounds of mitosis prior to gamete formation. Initially t...

Wheat seeds were germinated and grown for 6 days in the dark, greened at high light intensity for 4 days, then prepared for thin section electron microscopy. This chloroplast from a wild-type plant sh...