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.
Polar tube (PT) contains a membrane enclosed (arrows) sporoplasm (S) inside the tube. The oval or sperm-head shaped sporoplasm has greatly distended a portion of the tube. The sporoplasm contains medium dense material and a membrane (short arrows) encloses two nuclei in a diplokaryon (D) arrangement. The membrane enclosed nuclear region has an indentation and three or four small circular structures are abutted to it (*). Bar is 50nm.
