Identification of transcriptome profiles and signaling pathways for the allelochemical juglone in rice roots

Wen Chang Chi, Shih Feng Fu, Tsai Lien Huang, Yun An Chen, Chi Cien Chen, Hao Jen Huang

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Juglone (5-hydroxy-1,4-naphthoquinone) is known allelochemical, but its molecular mode of action is not well understood. We found that juglone induced reactive oxygen species production and calcium accumulation. To gain more insight into these cellular responses, we performed large-scale analysis of the rice transcriptome during juglone stress. Exposure to juglone triggered changes in transcript levels of genes related to cell growth, cell wall formation, chemical detoxification, abiotic stress response and epigenesis. The most predominant transcription-factor families were AP2/ERF, HSF, NAC, C2H2, WRKY, MYB and GRAS. Gene expression profiling of juglone-treated rice roots revealed upregulated signaling and biosynthesis of abscisic acid and jasmonic acid and inactivation of gibberellic acid. In addition, juglone upregulated the expression of two calcium-dependent protein kinases (CDPKs), 6 mitogen-activated protein kinase (MAPK) genes and 1 MAPK gene and markedly increased the activities of a CDPK-like kinase and MAPKs. Further characterization of these juglone-responsive genes may be helpful for better understanding the mechanisms of allelochemical tolerance in plants.

Original languageEnglish
Pages (from-to)591-607
Number of pages17
JournalPlant Molecular Biology
Volume77
Issue number6
DOIs
Publication statusPublished - 2011 Dec 1

Fingerprint

juglone
Pheromones
allelochemicals
Transcriptome
transcriptome
rice
mitogen-activated protein kinase
calcium
protein kinases
Gene Expression Profiling
Genes
genes
MAP Kinase Kinase 1
naphthoquinones
Abscisic Acid
jasmonic acid
Oryza
gibberellic acid
Mitogen-Activated Protein Kinase Kinases
abiotic stress

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

Cite this

Chi, Wen Chang ; Fu, Shih Feng ; Huang, Tsai Lien ; Chen, Yun An ; Chen, Chi Cien ; Huang, Hao Jen. / Identification of transcriptome profiles and signaling pathways for the allelochemical juglone in rice roots. In: Plant Molecular Biology. 2011 ; Vol. 77, No. 6. pp. 591-607.
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Identification of transcriptome profiles and signaling pathways for the allelochemical juglone in rice roots. / Chi, Wen Chang; Fu, Shih Feng; Huang, Tsai Lien; Chen, Yun An; Chen, Chi Cien; Huang, Hao Jen.

In: Plant Molecular Biology, Vol. 77, No. 6, 01.12.2011, p. 591-607.

Research output: Contribution to journalArticle

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