Abstract: Three different eggplants lines were used to study the changes of the content of Osmoregulation substances including the soluble sugar,soluble protein and proline,and the content of scavenging substances of active oxygen(including the peroxidase(POD),superoxide dismutase(SOD) and glutathione(GSH) in eggplant seedlings leaves,which were treated in the different duration of sub-low temperature of((18±1)℃/(12±1)℃) and recovery.The results showed that the content of soluble sugar,proline,glutathione and the activity of SOD and POD were all early rising and then descending,the content of soluble protein was obviously falling down at the beginning of the treatment and then changed gentlely.The POD isozyme band of Rf=0.114 8 were increased obviously at the beginning of sub-low temperature treatment.A new band of Rf= 0.196 7 appeared in the leaves of cold resistance eggplants line 0814.After recovery,the content of proline,glutathione and the activities of SOD and POD were all increased respectively,which was surpassed or closed to the original level except for the soluble sugar and soluble protein content.The POD isozyme band,the activities of Rf= 0.196 7 were all increased respectively in the three eggplants lines.

Key words: Eggplant, Sub-low temperature, Osmoregulation substances, Scavenging substances of active oxygen

CLC Number: 

• S641.1