title: [Study on the physiological and biochemical characteristics of different types of leaves of Aquilaria sinensis].
abstract: OBJECTIVE
  To study the physiological and biochemical characteristics of different types of leaves of Aquilaria sinensis.
  
  
  METHODS
  Six types of leaves' physiological and biochemical indexes were studied and analysed, these indicators included: malondialdehyde (MDA), soluble sugar content, soluble protein content, peroxidase activity (POD), catalase activity (CAT) and superoxide dismutase activity (SOD).
  
  
  RESULTS
  POD, CAT, SOD had no significant difference; POD, CAT, and SOD had a coordinating role on cleaning-up oxidation products MDA; The soluble protein contents of different types of leaves was negative corelatad with the centent of MDA; The contents of soluble sugar among them were signifiant different.
  
  
  CONCLUSIONS
  Growth activity sequence of different types of Aquilaria sinensis is as follows: lobular type > large-leaved type, transitional leaf type > elliptical leaf type.
authors.affiliation: Guangzhou Hospital of Integrated Traditional and West Medicine, Guangzhou 510800, China. cjy_0003@sina.cn
authors.forename: Ji-You
authors.initials: JY
authors.lastname: Chen
authors.forename: Ying
authors.initials: Y
authors.lastname: Xiong
authors.forename: Min-Hong
authors.initials: MH
authors.lastname: Deng
mesh_terms: D002241:Carbohydrates / Q000032:analysis; D002374:Catalase / Q000378:metabolism; D002681:China; D017753:Ecosystem; D008315:Malondialdehyde / Q000378:metabolism*; D009195:Peroxidase / Q000378:metabolism; D018515:Plant Leaves / Q000033:anatomy & histology / Q000737:chemistry / Q000378:metabolism*; D010940:Plant Proteins / Q000378:metabolism*; D012621:Seasons; D013482:Superoxide Dismutase / Q000378:metabolism; D029645:Thymelaeaceae / Q000254:growth & development* / Q000378:metabolism*
chemical_list: D002241:Carbohydrates; D010940:Plant Proteins; D008315:Malondialdehyde; D002374:Catalase; D009195:Peroxidase; D013482:Superoxide Dismutase