[The effects of space flight on medicinal plant Datura innoxia].
OBJECTIVE
To probe the effects of space condition on medicinal plants.


METHODS
The seeds of Datura innoxia Mill were put in a retrievable satellite. After returning earth, the isozymes of peroxidases, esterase and soluble proteins were studied.


RESULTS
The peroxidase activity and the protein content of weightless group were lower than that of the earth controlled group, but these items of the hit group were higher than that of the earth controlled group. The electrophoresis patterns of isozymes and proteins of these three groups were similar.


CONCLUSIONS
The effects of weightlessness and the high energy heavy ions were different on Datura innoxia, and the effects of space conditions were not enough to produce idiovariation in Datura innoxia.
Gao
W Y
WY
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing.
Zhao
S P
SP
Xue
L
L
D003359:Cosmic Radiation; D013286:Datura stramonium / Q000378:metabolism* / Q000528:radiation effects*; D004950:Esterases / Q000378:metabolism; D020450:Heavy Ions; D007527:Isoenzymes / Q000378:metabolism; D010544:Peroxidases / Q000378:metabolism; D010940:Plant Proteins / Q000378:metabolism; D010946:Plants, Medicinal; D010947:Plants, Toxic; D012639:Seeds / Q000378:metabolism / Q000528:radiation effects; D013026:Space Flight; D014893:Weightlessness
D007527:Isoenzymes; D010940:Plant Proteins; D010544:Peroxidases; D004950:Esterases