| Autor: |
Glazińska, Paulina, Kulasek, Milena, Grzeca, Michał, Wojciechowski, Waldemar, Marciniak, Katarzyna, Wilmowicz, Emilia, Kopcewicz, Jan |
| Zdroj: |
Kosmos; 2016, Vol. 65 Issue 3, p399-410, 12p |
| Abstrakt: |
Auxin affects almost all of the growth and development processes in plants. The auxin signal transduction pathway involves a number of proteins, among which the key elements are: TAAR auxin receptors (TIR1 and AFB1-3), AUX/IAA auxin response repressors and Auxin Response Factor (ARF) transcription factors. The activity of genes encoding some components of this pathway is affected by regulatory low-molecular-weight RNAs - miRNA (micro RNA) and siRNA (short-interfering RNA) - endogenous non-coding 20-25 nucleotides long small RNA (sRNA), differing in the way of formation (precursor molecules and biosynthesis pathways) and function. TIR1 and AFB1-3 contain miR393 target sequence and siTAAR secondary target site. IAA28 transcripts are targeted by miR847. Expression of ARF10, ARF16 i ARF17 is directly controlled by miR160, ARF6 and ARF8 by miR167, and ARF2-4 indirectly by miR390 through TAS3-derived ta-siRNAs. sRNAs influence primarily the tissue and temporal localization of described components of the auxin signal transduction pathway. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
