Journal
TRENDS IN PLANT SCIENCE
Volume 22, Issue 6, Pages 455-461Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2017.03.003
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Funding
- Swiss National Science Foundation (SNF) grant Ambizione [PZ00P3_168041]
- Swiss National Science Foundation grant [31003A-152831]
- National Research Foundation (NRF) of Korea [NRF-2015R1A2A1A01004294]
- Swiss National Science Foundation (SNF) [PZ00P3_168041, 31003A_152831] Funding Source: Swiss National Science Foundation (SNF)
- Grants-in-Aid for Scientific Research [17H06473] Funding Source: KAKEN
- National Research Foundation of Korea [10Z20130012243, 2015R1A2A1A01004294] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Cytokinins are phytohormones essential for cytokinesis and many other physiological and developmental processes in planta. Long-distance transport and intercellular transport have been postulated. For these processes, the existence of cytokinin transporters has been suggested. Recently, a transporter loading the xylem (AtABCG14) and another for cellular import (AtPUP14) have been discovered. AtABCG14 participates in the xylem loading process of cytokinins and contributes to the positive regulation of shoot growth. The cellular importer AtPUP14 is required to suppress cytokinin signaling. A role of a transporter as stop signal is a new paradigm for a hormone transporter.
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