title: [Effects of high temperature stress on root vitality and leaf biochemical indexes in different populations of Pinellia ternate].
abstract: OBJECTIVE
  To study the effects of high temperature stress on the root vitality and leaf biochemical indexes in populations of Pinellia ternate.
  
  
  METHODS
  The leaf activity of SOD, contents of MDA and free praline and root vitality were determined after a treatment of high temperature stress (35 degrees C/25 degrees C) was given to different populations of P. ternate.
  
  
  CONCLUSIONS
  By stress time increasing, the leaf SOD and free praline rose firstly and then dropped, the content of MDA increased while the root ability decreased in all populations. And the response of populations of P. ternate to high temperature was significantly different.
authors.affiliation: Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China. gqs@njau.edu.cn
authors.forename: Qiao-sheng
authors.initials: QS
authors.lastname: Guo
authors.forename: Jun-yi
authors.initials: JY
authors.lastname: Zhang
authors.forename: Xi-xi
authors.initials: XX
authors.lastname: Yi
authors.forename: Hui-yu
authors.initials: HY
authors.lastname: Ma
authors.forename: Chuan-zhong
authors.initials: CZ
authors.lastname: Jiang
mesh_terms: D002681:China; D017753:Ecosystem; D018869:Heat-Shock Response / Q000502:physiology*; D006358:Hot Temperature; D008315:Malondialdehyde / Q000378:metabolism; D030021:Pinellia / Q000378:metabolism* / Q000502:physiology; D018515:Plant Leaves / Q000378:metabolism / Q000502:physiology; D018517:Plant Roots / Q000502:physiology*; D010946:Plants, Medicinal / Q000378:metabolism* / Q000502:physiology; D011392:Proline / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D008315:Malondialdehyde; D011392:Proline; D013482:Superoxide Dismutase