Abstract
Environmental stressors, including high salt, drought, and low or high temperatures, are often associated with significant losses in agricultural productivity. Plants have evolved a diverse array of signaling pathways to modulate their development in response to various environmental challenges. Here, we report the characterization of a member of the R2R3-MYB transcription factor family, AtMyb73. The expression of AtMyb73 was up-regulated by salt stress but not by other stresses. The maximum level of AtMyb73 expression occurred at 6. h of 300. mM NaCl treatment. Under salt stress, atmyb73 ko mutant plants exhibited higher survival rates compare to wild type (Col-0) plants. Using quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis, we determined that the accumulation of salt overly sensitive (SOS) transcripts, SOS1 and SOS3, was higher in atmyb73 ko and atmyb73 eko plants than in wild type plants in response to 300. mM NaCl treatment. These results indicate that AtMyb73 is a negative regulator of SOS induction in response to salt stress in Arabidopsis thaliana.
| Original language | English |
|---|---|
| Pages (from-to) | 1461-1465 |
| Number of pages | 5 |
| Journal | Journal of Plant Physiology |
| Volume | 170 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2013 Nov 1 |
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Keywords
- Abiotic stress
- Arabidopsis thaliana
- MYB transcription factor
- Salt overly sensitive
- Salt stress
ASJC Scopus subject areas
- Plant Science
- Physiology
- Agronomy and Crop Science
Cite this
Loss of the R2R3 MYB, AtMyb73, causes hyper-induction of the SOS1 and SOS3 genes in response to high salinity in Arabidopsis. / Kim, Jun Hyeok; Nguyen, Nguyen Hoai; Jeong, Chan Young; Nguyen, Ngoc Trinh; Hong, Suk Whan; Lee, Hojoung.
In: Journal of Plant Physiology, Vol. 170, No. 16, 01.11.2013, p. 1461-1465.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Loss of the R2R3 MYB, AtMyb73, causes hyper-induction of the SOS1 and SOS3 genes in response to high salinity in Arabidopsis
AU - Kim, Jun Hyeok
AU - Nguyen, Nguyen Hoai
AU - Jeong, Chan Young
AU - Nguyen, Ngoc Trinh
AU - Hong, Suk Whan
AU - Lee, Hojoung
PY - 2013/11/1
Y1 - 2013/11/1
N2 - Environmental stressors, including high salt, drought, and low or high temperatures, are often associated with significant losses in agricultural productivity. Plants have evolved a diverse array of signaling pathways to modulate their development in response to various environmental challenges. Here, we report the characterization of a member of the R2R3-MYB transcription factor family, AtMyb73. The expression of AtMyb73 was up-regulated by salt stress but not by other stresses. The maximum level of AtMyb73 expression occurred at 6. h of 300. mM NaCl treatment. Under salt stress, atmyb73 ko mutant plants exhibited higher survival rates compare to wild type (Col-0) plants. Using quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis, we determined that the accumulation of salt overly sensitive (SOS) transcripts, SOS1 and SOS3, was higher in atmyb73 ko and atmyb73 eko plants than in wild type plants in response to 300. mM NaCl treatment. These results indicate that AtMyb73 is a negative regulator of SOS induction in response to salt stress in Arabidopsis thaliana.
AB - Environmental stressors, including high salt, drought, and low or high temperatures, are often associated with significant losses in agricultural productivity. Plants have evolved a diverse array of signaling pathways to modulate their development in response to various environmental challenges. Here, we report the characterization of a member of the R2R3-MYB transcription factor family, AtMyb73. The expression of AtMyb73 was up-regulated by salt stress but not by other stresses. The maximum level of AtMyb73 expression occurred at 6. h of 300. mM NaCl treatment. Under salt stress, atmyb73 ko mutant plants exhibited higher survival rates compare to wild type (Col-0) plants. Using quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analysis, we determined that the accumulation of salt overly sensitive (SOS) transcripts, SOS1 and SOS3, was higher in atmyb73 ko and atmyb73 eko plants than in wild type plants in response to 300. mM NaCl treatment. These results indicate that AtMyb73 is a negative regulator of SOS induction in response to salt stress in Arabidopsis thaliana.
KW - Abiotic stress
KW - Arabidopsis thaliana
KW - MYB transcription factor
KW - Salt overly sensitive
KW - Salt stress
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UR - http://www.scopus.com/inward/citedby.url?scp=84884151546&partnerID=8YFLogxK
U2 - 10.1016/j.jplph.2013.05.011
DO - 10.1016/j.jplph.2013.05.011
M3 - Article
VL - 170
SP - 1461
EP - 1465
JO - Journal of Plant Physiology
JF - Journal of Plant Physiology
SN - 0176-1617
IS - 16
ER -