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| Status |
Public on May 03, 2016 |
| Title |
Arabidopsis SAURs Are Critical for Differential Light Regulation of the Development of Various Organs |
| Organism |
Arabidopsis thaliana |
| Experiment type |
Expression profiling by high throughput sequencing
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| Summary |
During de-etiolation of Arabidopsis seedlings, light promotes the expansion of cotyledons but inhibits the elongation of hypocotyls. The mechanism of this differential regulation of cell enlargement is unclear. Our organ-specific transcriptomic analysis identified 32 Small Auxin Up RNA (SAUR) genes whose transcripts were light-induced in cotyledons and/or repressed in hypocotyls. We therefore named these SAURs as lirSAURs. Both overexpression and mutation analyses demonstrated that lirSAURs could promote cotyledon expansion and opening and enhance hypocotyl elongation, possibly by inhibiting phosphatase activity of PP2C-Ds. Light reduced auxin levels to down-regulate the expression of lirSAURs in hypocotyls. Further, phytochrome-interacting factors (PIFs) were shown
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| Overall design |
Totally eighteen wild type samples, three treatments and two organs, and each has three replicates. Totally six pifq samples, two organs, and each has three replicates.
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| Contributor(s) |
Sun N, Wang J, Gao Z, Dong J, He H, Terzaghi W, Wei N, Deng XW, Chen H |
| Citation(s) |
27118848 |
| Submission date |
Mar 24, 2016 |
| Last update date |
May 15, 2019 |
| Contact name |
Xu Zhao Gao |
| E-mail(s) |
gaozx@pku.edu.cn
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| Organization name |
Peking University
|
| Department |
College of Biological Sciences
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| Lab |
Plant molecular genetics and agricultural biotechnology research laboratory
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| Street address |
The Summer Palace Road No. 5
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| City |
Beijing |
| State/province |
Beijing |
| ZIP/Postal code |
100871 |
| Country |
China |
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| Platforms (1) |
| GPL13222 |
Illumina HiSeq 2000 (Arabidopsis thaliana) |
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| Samples (24)
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| Relations |
| BioProject |
PRJNA316322 |
| SRA |
SRP072300 |
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