Treatment with spermidine protects chrysanthemum seedlings against salinity stress damage

被引:16
作者
Zhang, Naiyuan [1 ]
Shi, Xiaomeng [1 ]
Guan, Zhiyong [1 ]
Zhao, Shuang [1 ]
Zhang, Fei [1 ]
Chen, Sumei [1 ]
Fang, Weiming [1 ]
Chen, Fadi [1 ]
机构
[1] Nanjing Agr Univ, Coll Hort, Nanjing 210095, Jiangsu, Peoples R China
关键词
Antioxidant enzymes; Chrysanthemum; Polyamines; Salt stress; Spermidine; INDUCED K+ EFFLUX; SALT TOLERANCE; POLYAMINE BIOSYNTHESIS; PEROXIDASE; MECHANISMS; VARIETIES; RESPONSES; CALLUS; GROWTH; PLANTS;
D O I
10.1016/j.plaphy.2016.05.002
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Salinity-stressed plants of salinity sensitive ('Qx096') and tolerant ('Qx097') chrysanthemum cultivar were treated with a range of concentrations of spermidine (Spd). Plant performance, as indicated by various parameters associated with growth, was improved by the treatment, as was the tissue content of soluble protein and proline. The extent of both Na+ accumulation and K+ loss was reduced. Activity levels of the stress-related enzymes SOD, POD, APX and CAT were significantly increased and the production of malondialdehyde (MDA) decreased. The suggestion was that treatment with 1.5 mM Spd would be an effective means alleviating salinity-stress induced injury through its positive effect on photosynthetic efficiency, reactive oxygen species scavenging ability and the control of ionic balance and osmotic potential. Its protective capacity was more apparent in 'Qx096' than in 'Qx097'. (C) 2016 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码:260 / 270
页数:11
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