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.
Nuclear DNA cleavage in nucellar cells adjacent to expanding endosperm. (A and B) Positive control treated with DNase before TUNEL assay. (C and D) TUNEL assay. Nuclei in nucellar cells adjacent to expanding endosperm are TUNEL-positive, endosperm cell nuclei are not. (A and C) Fluorescence. (B and D) Differential interference contrast (DIC) of identical areas. endo, endosperm; nuc, nucellus; arrowheads identify identical nuclei in fluorescence and DIC images. (Bar, 50 μm.)
