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Response of Exogenous Nitric Oxide and Potassium Ferricyanide Under Cadmium Stress in Cucumber Seedlings(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年07期
Page:
1-4
Research Field:
Publishing date:

Info

Title:
Response of Exogenous Nitric Oxide and Potassium Ferricyanide Under Cadmium Stress in Cucumber Seedlings
Author(s):
GAO Rong-xia
Zibo Vocational College,Zibo,Shandong 255013
Keywords:
cucumber; cadmium stress; nitric oxide; potassium ferricyanide; alleviating effect
PACS:
S 642.2
DOI:
-
Abstract:
With ‘Jinyan No.4’ as experimental material，the roles of nitric oxide and potassium ferricyanide in alleviating cadmium stress were studied.The results indicated that using SNP as an exogenous NO donor could significantly relieve the inhibition of cadmium stress on the growth of cucumber seedlings.SNP could promote the growth of seedlings and alleviate the inhibitory effect of cadmium stress on cucumber growth.Potassium ferricyanide processing compared with cadmium treatment had no obvious change.Cadmium toxic resulted in an obvious chlorosis of leaves,however,SNP additive treatment increased the pigment content,and improved net photosynthetic rate,transpiration rate,and stomatal conductance.Meanwhile,SNP could increase activities of antioxidant enzymes and antioxidant capacity and decrease contents of MDA and H2O2.

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Last Update: 2014-08-12