Temporal restriction of salt inducibility in expression of salinity-stress related gene by the circadian clock in <i>Solanum lycopersicum</i>
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- Coyne Kelsey
- Department of Biochemistry and Molecular Biology, The College of Wooster
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- Davis Melissa Mullen
- Department of Biochemistry and Molecular Biology, The College of Wooster
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- Mizoguchi Tsuyoshi
- Department of Natural Sciences, International Christian University
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- Hayama Ryosuke
- Department of Natural Sciences, International Christian University
Bibliographic Information
- Other Title
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- Temporal restriction of salt inducibility in expression of salinity-stress related gene by the circadian clock in Solanum lycopersicum
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Abstract
<p>Exposure to salinity causes plants to trigger transcriptional induction of a particular set of genes for initiating salinity-stress responses. Recent transcriptome analyses reveal that expression of a population of salinity-inducible genes also exhibits circadian rhythms. However, since the analyses were performed independently from those with salinity stress, it is unclear whether the observed circadian rhythms simply represent their basal expression levels independently from their induction by salinity, or these rhythms demonstrate the function of the circadian clock to actively limit the timing of occurrence of the salinity induction to particular times in the day. Here, by using tomato, we demonstrate that salt inducibility in expression of particular salinity-stress related genes is temporally controlled in the day. Occurrence of salinity induction in expression of SlSOS2 and P5CS, encoding a sodium/hydrogen antiporter and an enzyme for proline biosynthesis, is limited specifically to the morning, whereas that of SlDREB2, which encodes a transcription factor involved in tomato responses to several abiotic stresses such as salinity and drought, is restricted specifically to the evening. Our findings not only demonstrate potential importance in further investigating the basis and significance of circadian gated salinity stress responses under fluctuating day/night conditions, but also provide the potential to exploit an effective way for improving performance of salinity resistance in tomato.</p>
Journal
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- Plant Biotechnology
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Plant Biotechnology 36 (3), 195-200, 2019-09-25
Japanese Society for Plant Biotechnology
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Keywords
Details 詳細情報について
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- CRID
- 1390564227319796352
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- NII Article ID
- 130007724759
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- NII Book ID
- AA11250821
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- ISSN
- 13476114
- 13424580
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- NDL BIB ID
- 030207666
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed