Flow cytometry reagent Sysmex/Partec CYSTAIN® CyStain UV Precise P. Ready-to-use reagent kit to determine ploidy level with a two-step protocol. Using the kit components for nuclear extraction and staining of nuclear DNA from plant tissues, genome size variations and ploidy levels can be determined. The reagent has been created specifically for selected configurations of the Sysmex CyFlow® Ploidy Analyser and CyFlow® Space flow cytometers. Kit components: 125 mL Nuclei Extraction Buffer 500 mL Staining Buffer. 250 tests.