|Table of Contents|

Effects of Exogenous Nitric Oxide on Physiological Characteristics of Chrysanthemum Seedling Under Salt Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年19
Page:
70-77
Research Field:
Publishing date:

Info

Title:
Effects of Exogenous Nitric Oxide on Physiological Characteristics of Chrysanthemum Seedling Under Salt Stress
Author(s):
FAN Haixia1; ZHAO Sa1; XIN Guoqi2; BAI Feng3
(1.Xuchang Vocational Technical College,Xuchang，Henan 461000；2.Xuchang Forestry Technology Promotion Station，Xuchang，Henan 461000；3.Xuchang Huayu Flower Co.Ltd.,Xuchang，Henan 461000)
Keywords:
chrysanthemum; salt stress; nitric oxide; osmotic adjustment
PACS:
-
DOI:
10.11937/bfyy.20193774
Abstract:
The chrysanthemum variety ‘Shenma’ was used as material，and the hydroponic method was used to study the effect of exogenous NO donor sodium nitroprusside (SNP) on chrysanthemum seedlings.The measured indicators include leaf growth，relative water content，antioxidant enzyme activity，relative conductivity，ion content，osmotic adjustment substance content，malondialdehyde content and photosynthetic pigment content,in order to explore the relationship between SNP and the salt tolerance mechanism of chrysanthemum.The results showed that salt stress significantly damaged chrysanthemum seedlings.The exogenous NO donor sodium nitroprusside could reduce the content of malondialdehyde and sodium ions.It also could increase the growth amount，relative water content，potassium ion content and antioxidant enzyme activity，and maximize the photosynthetic pigment content close to CK treatment.It indicated that a certain concentration of sodium nitroprusside could alleviate salt stress damage by regulating plant antioxidant activity，osmotic adjustment level and photosynthesis.

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Last Update: 2020-12-24