期刊
CURRENT OPINION IN PLANT BIOLOGY
卷 53, 期 -, 页码 50-56出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.pbi.2019.10.004
关键词
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资金
- Purdue University - Purdue Center for Plant Biology
- AgSEED Crossroads funding
Plant shoot apical meristems (SAMs) play essential roles in plant growth and development. Located at the growing tip of a plant stem, these dome-like structures contain stem cells, which serve to perpetuate themselves in an undifferentiated state while continually adding new cells that differentiate and eventually form all above-ground tissues. In a SAM, the pool of stem cells is dynamically maintained through a balance between cell division (self-renewal) and differentiation (loss of stem-cell identity). In the model plant Arabidopsis thaliana, a negative feedback loop between WUSCHEL (NUS) and the CLAVATA3 (CLV3) plays important roles in maintaining the stem cell population. In this review, we highlight recent findings mainly from studies in Arabidopsis, and summarize the research progress on understanding how multiple transcriptional circuits integrate and function at different cell layers to control the WUS-CLV3 loop and stem cell homeostasis.
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