|Table of Contents|

Thymol Modulates Salt Tolerance in the Root of Rice Seedling(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2017年02期
Page:
57-
Research Field:
·生命科学·
Publishing date:

Info

Title:
Thymol Modulates Salt Tolerance in the Root of Rice Seedling
Author(s):
Wang Tingting1; Chen Xinjian2; Xu Cunfa3; Fan Youtao4; Shi Zhiqi4; Chen jian4; Xu Xiaofeng1
(1.School of Life Sciences,Nanjing Normal University,Nanjing 210023,China)(2.Shenzhen Yipule Xingnong Plant Protection Co.Ltd.,Shenzhen 518001,China)(3.Central Laboratory,Jiangsu Academy of Agriculture Science,Nanjing 210014,China)(4.Institute of Food Quality and Safety,Jiangsu Academy of Agriculture Science,Nanjing 210014,China)
Keywords:
rice; thymol; salt stress; reactive oxygen species; cell death
PACS:
S634.3
DOI:
10.3969/j.issn.1001-4616.2017.02.010
Abstract:
Exogenous regulation of salt tolerance is an important approach for the safety of crop production in salinity soil. Thymol is a novel plant-derived natural compound,which has been extensively reported to have medicinal activity. However,the regulation of plant physiology by thymol is still elusive. In the present study,physiological,histochemical,and biochemical methods were used to investigate thymol-modulated salt tolerance in rice seedlings. Basically, the results showed that,(1)Exogenous treatment with thymol significantly attenuated salt-induced root inhibition in a dose-dependent manner.(2)Exogenous treatment with thymol remarkably blocked salt-induced cell death in root tip.(3)Exogenous treatment with thymol scavenged the over-generated hydrogen peroxide and superoxide radical in root tip under salt stress.(4)Salt stress significantly inhibited the activity of superoxide dismutase(SOD)and catalase(CAT)in root tip,while thymol treatment pronouncedly enhance the activity of these two anti-oxidative enzymes under salt stress.(5)Exogenous treatment with thymol induced significant increase in the content of ascorbic acid(AsA)and glutathione(GSH)in root tip under salt stress. These results suggested that thymol was capable of conferring salt-induced oxidative injury and cell death by enhancing the anti-oxidative capacity in the root tip of rice seedlings. The current study provides important technological and scientific basis to ensure the safety of crop production in salinity soil.

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Last Update: 2017-06-30