Multiple Mobile mRNA Signals Regulate Tuber Development in Potato
AbstractIncluded among the many signals that traffic through the sieve element system are full-length mRNAs that function to respond to the environment and to regulate development. In potato, several mRNAs that encode transcription factors from the three-amino-loop-extension (TALE) superfamily move from leaves to roots and stolons via the phloem to control growth and signal the onset of tuber formation. This RNA transport is enhanced by short-day conditions and is facilitated by RNA-binding proteins from the polypyrimidine tract-binding family of proteins. Regulation of growth is mediated by three mobile mRNAs that arise from vasculature in the leaf. One mRNA, StBEL5, functions to activate growth, whereas two other, sequence-related StBEL’s, StBEL11 and StBEL29, function antagonistically to repress StBEL5 target genes involved in promoting tuber development. This dynamic system utilizes closely-linked phloem-mobile mRNAs to control growth in developing potato tubers. In creating a complex signaling pathway, potato has evolved a long-distance transport system that regulates underground organ development through closely-associated, full-length mRNAs that function as either activators or repressors. View Full-Text
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Hannapel, D.J.; Banerjee, A.K. Multiple Mobile mRNA Signals Regulate Tuber Development in Potato. Plants 2017, 6, 8.
Hannapel DJ, Banerjee AK. Multiple Mobile mRNA Signals Regulate Tuber Development in Potato. Plants. 2017; 6(1):8.Chicago/Turabian Style
Hannapel, David J.; Banerjee, Anjan K. 2017. "Multiple Mobile mRNA Signals Regulate Tuber Development in Potato." Plants 6, no. 1: 8.
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