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The knowns and unknowns of strigolactone transport
Journal article   Peer reviewed

The knowns and unknowns of strigolactone transport

Kieu Thi Xuan Vo, Xuewen Li, Min Yu, Enrico Martinoia and Tobias Kretzschmar
Trends in plant science, Vol.First online, pp.1-8
17/07/2026
DOI: https://doi.org/10.1016/j.tplants.2026.06.014
PMID: 42469058
Appears in  Recent Faculty of Science and Engineering Publications

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Abstract

shoot branching phosphate nutrition parasitic weeds ABC subfamily G transporter arbuscular mycorrhiza strigolactone
Phytohormones are predominantly produced in tissues that are spatially separated from their perceptive target tissues. Consequently, short- and long-distance phytohormone movement is a prerequisite for their function, and the underpinning transport mechanisms are crucial for phytohormone action. Strigolactones (SLs) are the most recently identified class of phytohormones. While SL synthesis and signaling pathways are well established, knowledge of active SL transport is scarce, limiting a system-level understanding of SL mechanisms and functions. Following the characterization of several SL transporters in the context of crop protection for two crops of global importance, we review our current knowledge on SL transport and highlight critical knowledge gaps with the aim of providing a conceptual framework for future studies.

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