|Table of Contents|

Effect of Exogenous Hydrogen Sulfide on Chlorophyll Fluorescence Parameters and Antioxidant Activity of Cutting Dianthus caryophyllus L.(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年23
Page:
124-128
Research Field:
Publishing date:

Info

Title:
Effect of Exogenous Hydrogen Sulfide on Chlorophyll Fluorescence Parameters and Antioxidant Activity of Cutting Dianthus caryophyllus L.
Author(s):
JIANG Qianqian; ZHANG Baoren; WANG Chengjian; LI Tiantian; LIU Junjie
(Key Laboratory of Biochemistry & Molecular Biology in Universities of Shandong，Weifang University，Weifang，Shandong 201061)
Keywords:
hydrogen sulfide(H2S); Dianthus caryophyllus L.; chlorophyll fluorescence parameters; antioxidant activity
PACS:
-
DOI:
10.11937/bfyy.201623028
Abstract:
Cutting flowers of Dianthus caryophyllus L.were used as materials.The effect of sodium hydrosulfide (NaHS，the donor of H2S) on chlorophyll fluorescence parameters and antioxidant activity in Dianthus caryophyllus L.were investigated to study the regulation mechanism of exogenous hydrogen sulfide (H2S) on preservation of cutting Dianthus caryophyllus L.，with distilled water as the control.The results showed that chlorophyll content，soluble sugar content，maximum photochemical efficiency of PS II in darkness (Fv/Fm)，potential activity of PS II (Fv/Fo) and actual photochemical efficiency of PSll (ΦPSⅡ) decreased in the senescence process of cutting flowers of Dianthus caryophyllus L.Compared with control，the appropriate concentration of NaHS solution treatment led to extension of cut flower life，enlargement in flower diameter，increase in chlorophyll content,soluble sugar content，and Fv/Fm，Fv/Fo，ΦPSII values，of which 600 μmol?L-1NaHS showed the best effect.600 μmol?L-1NaHS caused significant decrease in MDA content but increase in SOD，POD，CAT activities on the fourth day in vase.Those results indicated that exogenous H2S could enhance the reactive oxygen species (ROS) scavenging activity and alleviate the injury of photosynthetic apparatus in flowers of Dianthus caryophyllus L.against senescence，so extend the flowering and enhance ornamental value.

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Last Update: 2017-01-18