Dry seeds of Populus ussuriensis collected from Heilongjiang area were carried by the recoverable satellite for *** the growth traits and antioxidant enzymes activities of seedlings from the spaceflight-treated seeds ...
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Dry seeds of Populus ussuriensis collected from Heilongjiang area were carried by the recoverable satellite for *** the growth traits and antioxidant enzymes activities of seedlings from the spaceflight-treated seeds and controls were *** results showed that the growth traits of the seedlings after spaceflight varied to some degree,but most of the variation was not *** were no significant changes in soluble protein content,malondialdehyde(MDA)content and superoxide dismutase(SOD)activity in seedlings with response to spaceflight ***,activities of ascorbate peroxidase(APX)and guaiacol peroxidase(POD)in the poplar seedlings after spaceflight were significantly higher than those from the ground *** suggested that space condition altered the poplar traits in some degree,and the higher antioxidant enzymes might failitate themselves to avoid some damage from active oxygen.
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