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.
RIA analysis (A) and HPLC absorbance profile (B) of cytokinins isolated by the immunoaffinity procedure from spent media from cultures of the Arabidopsis PPFM isolate. The retention times of trans-zeatin (Z) and trans-zeatin riboside (ZR) standards are indicated by bars. Control media showed no activity in any fraction. The data were not corrected for recovery.
