[The change of activity of protective enzyme around sprout tumble of Pinellia ternate under high temperature stress].
OBJECTIVE
To study the change of the activity of protective enzyme to avoid sprout tumble of Pinellia ternata.


METHODS
A high temperature stress was given to P. ternata. Then the activity of protective enzyme (SOD, POD and CAT) and the content of membrane lipid peroxidation (MDA) were detected after different treating days.


CONCLUSIONS
By stress time increasing, the content of MDA in lamina and petiole increased obviously, but it increased invisibly in tuber. After high temperature stress, the activity of both SOD and CAT decreased gradually. The activity of POD increased at first but then decreased rapidly.
Xue
Jian-ping
JP
Department of Biology, Huaibei Coal Industry Teacher's College, Huaibei 235000, China. xuejp2000@yahoo.com.cn
Ding
Yong
Y
Zhang
Ai-min
AM
Hu
Chuan-qiu
CQ
D002374:Catalase / Q000378:metabolism; D018869:Heat-Shock Response / Q000502:physiology*; D006358:Hot Temperature; D008315:Malondialdehyde / Q000378:metabolism*; D009195:Peroxidase / Q000378:metabolism; D030021:Pinellia / Q000254:growth & development / Q000378:metabolism*; D010946:Plants, Medicinal / Q000254:growth & development / Q000378:metabolism*; D013482:Superoxide Dismutase / Q000378:metabolism*
D008315:Malondialdehyde; D002374:Catalase; D009195:Peroxidase; D013482:Superoxide Dismutase