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.
Microscopical analysis of tobacco cells and nuclei-enriched fractions. A, Light microscopy of cv Xanthi cultured cells. B and C, Nuclei extracted from cv Xanthi cells visualized under transmission light (B) and stained with propidium iodide (C). Bars = 10 μm. [See online article for color version of this figure.]
