期刊
CURRENT OPINION IN PLANT BIOLOGY
卷 14, 期 1, 页码 4-9出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.pbi.2010.08.001
关键词
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资金
- Biotechnology and Biological Sciences Research Council
- European Union
- Biotechnology and Biological Sciences Research Council [BBS/E/J/00000594] Funding Source: researchfish
The shoot and root meristems contain small populations of stem cells that constantly renew themselves while providing precursor cells to build all other plant tissues and organs. Cell renewal, growth and differentiation in the meristems are coordinated by networks of transcription factors and intercellular signals. The past two years have revealed how auxin and cytokinin signals are integrated with each other and with regulatory genes in the shoot and root meristems. Small RNAs have also emerged as novel intercellular signals. Downstream of meristenn regulatory genes, links have been made to cell division control and chromatin function. Protection of genome integrity, partly through programmed cell death after DNA damage, has recently been revealed as a specialised function in plant stem cells.
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