[Effects of high temperature stress on root vitality and leaf biochemical indexes in different populations of Pinellia ternate].
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.
Guo
Qiao-sheng
QS
Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China. gqs@njau.edu.cn
Zhang
Jun-yi
JY
Yi
Xi-xi
XX
Ma
Hui-yu
HY
Jiang
Chuan-zhong
CZ
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
D008315:Malondialdehyde; D011392:Proline; D013482:Superoxide Dismutase