Journal
FRONTIERS IN PLANT SCIENCE
Volume 7, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fpls.2016.00183
Keywords
axillary meristem; auxin; cytokinin; transcription factors; post-embryonic development
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Funding
- National Basic Research Program of China (973 Program) [2014CB943500]
- National Natural Science Foundation of China [31430010, 31222033]
- National Program for Support of Top-Notch Young Professionals
- State Key Laboratory of Plant Genomics grant [SKLPG2011B0103]
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One distinctive feature of plant post-embryonic development is that plants can undergo reiterative growth and continuous organogenesis throughout their lifetimes. Axillary meristems (AMs) in leaf axils play a central role in this growth and differences in meristem initiation and development produce the diversity of plant architecture. Studies in the past 15 years have shown that several transcription factors (TFs) and phytohormones affect AM initiation. In this review, we highlight recent research using systems biology approaches to examine the regulatory hierarchies underlying AM initiation and the role of auxins and cytokinins in AM initiation and development. This research revealed a developmental mechanism in which phytohormone signals act with a gene regulatory network containing multiple TFs to contribute to the initiation of AMs.
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