[1]WANG Li-yan,JING Rui-yong,GUO Yong-xia,et al.Resistant Ability of Isatis indigotica Seedling with Different Ploid to Salting and Responding Mechanism of Its Protective Enzyme[J].Research of Soil and Water Conservation,2013,20(04):224-229.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 04
Page number:
224-229
Column:
Public date:
2013-08-28
- Title:
-
Resistant Ability of Isatis indigotica Seedling with Different Ploid to Salting and Responding Mechanism of Its Protective Enzyme
- Author(s):
-
WANG Li-yan, JING Rui-yong, GUO Yong-xia, YIN Kui-de
-
Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, China
-
- Keywords:
-
diploid; tetraploid; Isatis indigotica; salt stress; protective enzyme
- CLC:
-
Q945.78
- DOI:
-
-
- Abstract:
-
To compare tolerant capacity of different ploidy Isatis indigotica to salt stress and response mechanism of protective enzymes in vivo, different concentrations of sodium chloride were added into MS medium to imitate salt stress. Germination of seed and seeding growth condition of Diploid and tetraploid of Isatis indigotica were measured, malondialdehyde and proline content in seedling were measured and protective enzymes in aboveground part including SOD, POD and CAT were deter mined. The results of germination, seedling growth and malondialdehyde and proline content showed that tolerant stress of tetraploid of Isatis indigotica is better than that of diploid. Results of protective enzyme showed that enzyme which plays primary role is different, It was showed that active oxygen removal ability of tetraploid is higher than that of diploid under salt stress that SOD, POD and CAT activity of tetraploid were higher than those of diploid regardless of salt stress and sodium chloride, which can partly explain that tolerant ability of tetraploid to salt stress is higher than that of diploid.