Effects of applying exogenous plant hormone on praline metabolism of Swainsonia salsula seedlings under NaCl stress

doi:10.11686/cyxb20140223

Abstract

Abstract: Swainsonia salsula seedlings were treated with cytokinin (6-BA) and abscisic acid (ABA) then subjected to eight salt treatments (0, 80, 160, 240, 320, 400, 480, 560 mmol/L of NaCl). Proline metabolism enzymes, root top ratio of leaves and roots of S. salsula were analyzed to study the effects of exogenous plant hormone on salinity tolerance after two weeks to provide a theoretical basis for cultivation of salt-tolerant forage. Exogenous plant hormone improved salinity to lerance of S. salsula. Under exogenous plant hormone treatment, roots were more sensitive to hormone treatment than leaves and the effect of 6-BA was more significant than that of ABA. After exposure to exogenous plant hormone, other indexes of stress resistance were reduced except Pro in S. salsula.

CLC Number:

WANG Ruo-meng, DONG Kuan-hu, LI Yu-ying, LI Chen, YANG Jing-fang. Effects of applying exogenous plant hormone on praline metabolism of Swainsonia salsula seedlings under NaCl stress[J]. Acta Prataculturae Sinica, 2014, 23(2): 189-195.

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