title: [Effect of HKL-4 on active oxygen metabolism and photochemical efficiency in licorice leaf].
abstract: OBJECTIVE
  To study the effects of HKL-4 on physiological changes during growth of leaves.
  
  
  METHODS
  Using licorice (Glycyrrhiza uralensis) as material, the effects of HKL-4 on active oxygen metabolism and photochemical efficiency in licorice leaf were determined under field condition.
  
  
  CONCLUSIONS
  The contents of chlorophyll, activity of SOD and CAT increased, while the MDA contents in leaves decreased. The senescence was delayed, so that the photochemical efficiency (Fv/Fm) was increasing comparing to the control.
authors.affiliation: Jilin Agricultural Science and Technology College, Jilin 132109, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.forename: Liu-Sheng
authors.initials: LS
authors.lastname: Duan
authors.forename: Bao-Ming
authors.initials: BM
authors.lastname: Wang
authors.forename: Zhong-pei
authors.initials: ZP
authors.lastname: He
authors.forename: Zhao-Hu
authors.initials: ZH
authors.lastname: Li
authors.forename: Cheng-Ming
authors.initials: CM
authors.lastname: Zhou
mesh_terms: D002374:Catalase / Q000378:metabolism; D002734:Chlorophyll / Q000378:metabolism; D006035:Glycyrrhiza / Q000254:growth & development* / Q000378:metabolism; D008315:Malondialdehyde / Q000378:metabolism; D009195:Peroxidase / Q000378:metabolism; D010788:Photosynthesis; D010937:Plant Growth Regulators / Q000494:pharmacology*; D018515:Plant Leaves / Q000254:growth & development / Q000378:metabolism; D010946:Plants, Medicinal / Q000254:growth & development* / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D010937:Plant Growth Regulators; D002734:Chlorophyll; D008315:Malondialdehyde; D002374:Catalase; D009195:Peroxidase; D013482:Superoxide Dismutase