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Plant Physiol Biochem. 2016 Aug;105:260-270. doi: 10.1016/j.plaphy.2016.05.002. Epub 2016 May 2.

Treatment with spermidine protects chrysanthemum seedlings against salinity stress damage.

Author information

1
College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China.
2
College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China. Electronic address: guanzhy@njau.edu.cn.

Abstract

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'.

KEYWORDS:

Antioxidant enzymes; Chrysanthemum; Polyamines; Salt stress; Spermidine

PMID:
27173095
DOI:
10.1016/j.plaphy.2016.05.002
[Indexed for MEDLINE]

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