Role of melatonin in alleviating cold stress in Arabidopsis thaliana

被引：367

作者：

Bajwa, Vikramjit S. ^{[1
]}

Shukla, Mukund R. ^{[1
]}

Sherif, Sherif M. ^{[1
]}

Murch, Susan J. ^{[2
]}

Saxena, Praveen K. ^{[1
]}

机构：

[1] Univ Guelph, Dept Plant Agr, Gosling Res Inst Plant Preservat, Guelph, ON N1G 2W1, Canada

[2] Univ British Columbia, Dept Chem, Kelowna, BC, Canada

来源：

JOURNAL OF PINEAL RESEARCH | 2014年 / 56卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

cold stress; gene expression; growth and development; melatonin; LOW-TEMPERATURE; TRANSCRIPTION FACTORS; EXOGENOUS MELATONIN; FREEZING TOLERANCE; GENE-EXPRESSION; EDIBLE PLANTS; COR15A GENE; DROUGHT; ACCLIMATION; PROTEINS;

D O I：

10.1111/jpi.12115

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Melatonin (N-acetyl-5-methoxytryptamine) has been implicated in abiotic and biotic stress tolerance in plants. However, information on the effects of melatonin in cold-stress tolerance in vivo is limited. In this study, the effect of melatonin was investigated in the model plant Arabidopsis thaliana challenged with a cold stress at 4 degrees C for 72 and 120hr. Melatonin-treated plants (10 and 30m) had significantly higher fresh weight, primary root length, and shoot height compared with the nontreated plants. To aid in the understanding of the role of melatonin in alleviating cold stress, we investigated the effects of melatonin treatment on the expression of cold-related genes. Melatonin up-regulated the expression of C-repeat-binding factors (CBFs)/Drought Response Element Binding factors (DREBs), a cold-responsive gene, COR15a, a transcription factor involved in freezing and drought-stress tolerance CAMTA1 and transcription activators of reactive oxygen species (ROS)-related antioxidant genes, ZAT10 and ZAT12, following cold stress. The up-regulation of cold signaling genes by melatonin may stimulate the biosynthesis of cold-protecting compounds and contribute to the increased growth of plants treated with exogenous melatonin under cold stress.

引用

页码：238 / 245

页数：8

共 63 条

[11]

Chinnusamy V, 2010, METHODS MOL BIOL, V639, P39, DOI 10.1007/978-1-60761-702-0_3

[12] Roles for Arabidopsis CAMTA Transcription Factors in Cold-Regulated Gene Expression and Freezing Tolerance [J].

Doherty, Colleen J. ;

Van Buskirk, Heather A. ;

Myers, Susan J. ;

Thomashow, Michael F. .

PLANT CELL, 2009, 21 (03) :972-984

[13] MELATONIN IN EDIBLE PLANTS IDENTIFIED BY RADIOIMMUNOASSAY AND BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY-MASS SPECTROMETRY [J].

DUBBELS, R ;

REITER, RJ ;

KLENKE, E ;

GOEBEL, A ;

SCHNAKENBERG, E ;

EHLERS, C ;

SCHIWARA, HW ;

SCHLOOT, W .

JOURNAL OF PINEAL RESEARCH, 1995, 18 (01) :28-31

[14] Arabidopsis transcriptome profiling indicates that multiple regulatory pathways are activated during cold acclimation in addition to the CBF cold response pathway [J].

Fowler, S ;

Thomashow, MF .

PLANT CELL, 2002, 14 (08) :1675-1690

[15] On the free radical scavenging activities of melatonin's metabolites, AFMK and AMK [J].

Galano, Annia ;

Tan, Dun Xian ;

Reiter, Russel J. .

JOURNAL OF PINEAL RESEARCH, 2013, 54 (03) :245-257

[16] Low temperature regulation of the Arabidopsis CBF family of AP2 transcriptional activators as an early step in cold-induced COR gene expression [J].

Gilmour, SJ ;

Zarka, DG ;

Stockinger, EJ ;

Salazar, MP ;

Houghton, JM ;

Thomashow, MF .

PLANT JOURNAL, 1998, 16 (04) :433-442

[17]

Hansen J., 1997, P97

[18] Reactions of the NO redox forms NO+, •NO and HNO (protonated NO-) with the melatonin metabolite N1-acetyl-5-methoxykynuramine [J].

Hardeland, Ruediger ;

Backhaus, Claudia ;

Fadavi, Azadeh .

JOURNAL OF PINEAL RESEARCH, 2007, 43 (04) :382-388

[19] Neuroprotection by Radical Avoidance: Search for Suitable Agents [J].

Hardeland, Ruediger .

MOLECULES, 2009, 14 (12) :5054-5102

[20]

HATTORI A, 1995, BIOCHEM MOL BIOL INT, V35, P627

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