Research article - Peer-reviewed, 2018
Photoperiodic control of seasonal growth is mediated by ABA acting on cell-cell communication
Tylewicz, S.; Petterle, A.; Marttila, S.; Miskolczi, P.; Azeez, A.; Singh, R. K.; Immanen, J.; Mahler, N.; Hvidsten, T. R.; Eklund, D. M.; Bowman, J. L.; Helariutta, Y.; Bhalerao, R. P.Abstract
In temperate and boreal ecosystems, seasonal cycles of growth and dormancy allow perennial plants to adapt to winter conditions. We show, in hybrid aspen trees, that photoperiodic regulation of dormancy is mechanistically distinct from autumnal growth cessation. Dormancy sets in when symplastic intercellular communication through plasmodesmata is blocked by a process dependent on the phytohormone abscisic acid. The communication blockage prevents growth-promoting signals from accessing the meristem. Thus, precocious growth is disallowed during dormancy. The dormant period, which supports robust survival of the aspen tree in winter, is due to loss of access to growth-promoting signals.Published in
Science2018, volume: 360, number: 6385, pages: 212-214
Publisher: AMER ASSOC ADVANCEMENT SCIENCE
Authors' information
Tylewicz, Szymon
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology
Petterle, Anna
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology
Azeez, Abdul
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology
Azeez, Abdul
Jain Irrigation Systems Limited
Singh, Rajesh
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology
Swedish University of Agricultural Sciences, Department of Forest Genetics and Plant Physiology
UKÄ Subject classification
Botany
Biochemistry and Molecular Biology
Publication Identifiers
DOI: https://doi.org/10.1126/science.aan8576
URI (permanent link to this page)
https://res.slu.se/id/publ/94951