title: The effects of freeze-preservation on some pollen enzymes. 1. Freeze-thaw stresses.
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis; D000469:Alkaline Phosphatase / Q000032:analysis; D004589:Electrophoresis, Disc; D004950:Esterases / Q000032:analysis; D005615:Freezing; D007931:Leucyl Aminopeptidase / Q000032:analysis; D010544:Peroxidases / Q000032:analysis; D010944:Plants / Q000201:enzymology*; D011058:Pollen; D011309:Preservation, Biological; D003313:Zea mays / Q000201:enzymology
chemical_list: D010544:Peroxidases; D004950:Esterases; D000469:Alkaline Phosphatase; D000135:Acid Phosphatase; D007931:Leucyl Aminopeptidase