Fig. 1.
Morphology of Zygnema sp. used for the laboratory experiment. Light microscopy of (A) young cells; (B) stationary phase cells cultivated for 2 months; and (C) pre-akinetes cultivated for 2 months without nitrogen. Scale bar=20 µm.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.