title: Isolation of protoplasts from pollen tetrads.
mesh_terms: D002843:Chromatin; D006238:Haploidy; D006824:Hybridization, Genetic; D008854:Microscopy, Electron; D059828:Plant Cells; D063245:Plant Development; D011058:Pollen; D011523:Protoplasts; D013194:Staining and Labeling
chemical_list: D002843:Chromatin