Long-range mobile signals mediate seasonal control of shoot growth. Miskolczi, P., Singh, R. K., Tylewicz, S., Azeez, A., Maurya, J. P., Tarkowská, D., Novák, O., Jonsson, K., & Bhalerao, R. P. Proceedings of the National Academy of Sciences, 116(22):10852–10857, May, 2019.
Long-range mobile signals mediate seasonal control of shoot growth [link]Paper  doi  abstract   bibtex   5 downloads  
In perennial plants, seasonal shifts provide cues that control adaptive growth patterns of the shoot apex. However, where these seasonal cues are sensed and communicated to the shoot apex remains unknown. We demonstrate that systemic signals from leaves play key roles in seasonal control of shoot growth in model tree hybrid aspen. Grafting experiments reveal that the tree ortholog of Arabidopsis flowering time regulator FLOWERING LOCUS T ( FT ) and the plant hormone gibberellic acid (GA) systemically convey seasonal cues to the shoot apex. GA (unlike FT ) also acts locally in shoot apex, downstream of FT in seasonal growth control. At the shoot apex, antagonistic factors— LAP1 , a target of FT and the FT antagonist TERMINAL FLOWER 1 ( TFL1 )—act locally to promote and suppress seasonal growth, respectively. These data reveal seasonal changes perceived in leaves that are communicated to the shoot apex by systemic signals that, in concert with locally acting components, control adaptive growth patterns.
@article{miskolczi_long-range_2019,
	title = {Long-range mobile signals mediate seasonal control of shoot growth},
	volume = {116},
	issn = {0027-8424, 1091-6490},
	url = {http://www.pnas.org/lookup/doi/10.1073/pnas.1902199116},
	doi = {10/gg4gdt},
	abstract = {In perennial plants, seasonal shifts provide cues that control adaptive growth patterns of the shoot apex. However, where these seasonal cues are sensed and communicated to the shoot apex remains unknown. We demonstrate that systemic signals from leaves play key roles in seasonal control of shoot growth in model tree hybrid aspen. Grafting experiments reveal that the tree ortholog of
              Arabidopsis
              flowering time regulator
              FLOWERING LOCUS T
              (
              FT
              ) and the plant hormone gibberellic acid (GA) systemically convey seasonal cues to the shoot apex. GA (unlike
              FT
              ) also acts locally in shoot apex, downstream of
              FT
              in seasonal growth control. At the shoot apex, antagonistic factors—
              LAP1
              , a target of
              FT
              and the
              FT
              antagonist
              TERMINAL FLOWER 1
              (
              TFL1
              )—act locally to promote and suppress seasonal growth, respectively. These data reveal seasonal changes perceived in leaves that are communicated to the shoot apex by systemic signals that, in concert with locally acting components, control adaptive growth patterns.},
	language = {en},
	number = {22},
	urldate = {2021-06-07},
	journal = {Proceedings of the National Academy of Sciences},
	author = {Miskolczi, Pál and Singh, Rajesh Kumar and Tylewicz, Szymon and Azeez, Abdul and Maurya, Jay P. and Tarkowská, Danuše and Novák, Ondřej and Jonsson, Kristoffer and Bhalerao, Rishikesh P.},
	month = may,
	year = {2019},
	pages = {10852--10857},
}
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