+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Regulation of genes that are induced by drought stress in Arabidopsis thaliana



Regulation of genes that are induced by drought stress in Arabidopsis thaliana



Journal of Plant Research 108(1089): 127-136



Plants respond to drought with physiological and developmental changes. Many plant genes have been shown to be induced by drought stress and function in drought tolerance. We isolated nine independent genes that are responsive to drought in Arabidopsis thaliana and analyzed the structure of their gene products. Sequence analyses of these genes indicate that their gene products may function in protecting cells from dehydration. We also analyzed the expression of these genes under various stress conditions. Some of the drought-responsive genes are induced by plant hormone abscisic acid (ABA), but others are not. There seem to be at least three independent signal transduction pathways between initial drought stress signal and gene expression. Two of the pathways are ABA-dependent, but one is ABA-independent. Protein synthesis is necessary for one of the ABA-dependent pathways. We precisely analyzed the promoter of two drought-inducible Arabidopsis genes, rd29A and rd29B, in transgenic plants, and identified a novel cis-acting element containing 9 bp, TACCGACAT (DRE, Dehydration Responsive Element), that is involved in the ABA-independent response of rd29A to conditions of dehydration or high salt. DRE is also involved in the induction by low temperature, but does not function in the ABA-responsive, slow expression of rd29A. One of myb-related genes, Atmyb2, that is responsive to water stress and abscisic acid (ABA) has been cloned from Arabidopsis. Atmyb2 encodes a transcription factor and binds to conserved MYB recognition sequence. These results suggest that the ABA-mediated induction of drought-inducible genes whose expression requires protein synthesis may be regulated by the ATMYB2 protein.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 009321797

Download citation: RISBibTeXText


Related references

Regulation of gene expression by interleukin-6 in fetal rat hepatocyte primary cultures: Role of epidermal growth factor and dexamethasone*1. Hepatology 22(6): 1769-1775, 1995

Function and phenotype of immature CD4+ lymphocytes in healthy infants and early lymphocyte activation in uninfected infants of human immunodeficiency virus-infected mothers. Clinical and Diagnostic Laboratory Immunology 4(3): 358-361, 1997

Molecular response to water stress in Lathyrus sativus. Journal of Plant Biochemistry and Biotechnology 4(1): 47-49, 1995

Characterization and diagnostic potential of hepatitis B virus nucleocapsid expressed in E. coli and P. pastoris. JournalofVirologicalMethods99(1-2):99, 2002

Important role of junctophilin in nematode motor function. Biochemical and Biophysical Research Communications 289(1): 234-239, 2001

Atazanavir urolithiasis. New England Journal of Medicine 355(20): 2158-2159, 2006

A dual role for KRT81: a miR-SNP associated with recurrence in non-small-cell lung cancer and a novel marker of squamous cell lung carcinoma. Plos one 6(7): E22509, 2011

Natural Variation and Genetics of Photoperiodism in Wyeomyia smithii. Advances in Genetics 99: 39-71, 2017

Two genes present on a transposon-like structure in Lactococcus lactis are involved in Clp-family proteolytic activity. Molecular Microbiology 7(6): 957-965, 1993

Regulation of Arabidopsis thaliana Heynh arginine decarboxylase by potassium deficiency stress. Plant Physiology (rockville). 111(4): 1077-1083, 1996

Regulation of sulfur assimilation pathways in Burkholderia cenocepacia: identification of transcription factors CysB and SsuR and their role in control of target genes. Journal of Bacteriology 189(5): 1675-1688, 2007

Stress increases attentional bias for alcohol cues in social drinkers who drink to cope. Alcohol and Alcoholism 42(6): 560-566, 2007

Identification and characterization of ectosymbionts of distinct lineages in Bacteroidales attached to flagellated protists in the gut of termites and a wood-feeding cockroach. Environmental Microbiology 8(1): 11-20, 2006

Cotton dust exposure and self-reported respiratory symptoms among textile factory workers in Northwest Ethiopia: a comparative cross-sectional study. Journal of Occupational Medicine and Toxicology 13: 13, 2018

Water stress response function for groundnut (Arachis hypogaea L.). Agricultural Water Management 32(2): 197-209, 1997