A dynamic model for stem cell homeostasis and patterning in Arabidopsis meristems.
A dynamic model for stem cell homeostasis and patterning in Arabidopsis meristems.
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DOI:
10.1371/journal.pone.0009189
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发表时间:
2010-02-12
期刊:
影响因子:
3.7
通讯作者:
Simon R
中科院分区:
文献类型:
--
作者:
Hohm T;Zitzler E;Simon R
Plants maintain stem cells in their meristems as a source for new undifferentiated cells throughout their life. Meristems are small groups of cells that provide the microenvironment that allows stem cells to prosper. Homeostasis of a stem cell domain within a growing meristem is achieved by signalling between stem cells and surrounding cells. We have here simulated the origin and maintenance of a defined stem cell domain at the tip of Arabidopsis shoot meristems, based on the assumption that meristems are self-organizing systems. The model comprises two coupled feedback regulated genetic systems that control stem cell behaviour. Using a minimal set of spatial parameters, the mathematical model allows to predict the generation, shape and size of the stem cell domain, and the underlying organizing centre. We use the model to explore the parameter space that allows stem cell maintenance, and to simulate the consequences of mutations, gene misexpression and cell ablations.
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影响因子:
56.9
作者:
Fletcher, LC;Brand, U;Meyerowitz, EM
通讯作者:
Meyerowitz, EM
影响因子:
3.7
作者:
Geier F;Lohmann JU;Gerstung M;Maier AT;Timmer J;Fleck C
通讯作者:
Fleck C
影响因子:
56.9
作者:
Kondo, Tatsuhiko;Sawa, Shinichiro;Sakagami, Youji
通讯作者:
Sakagami, Youji
影响因子:
11.6
作者:
Han, Pei;Li, Qing;Zhu, Yu-Xian
通讯作者:
Zhu, Yu-Xian
DOI:
10.1126/science.1160617
发表时间:
2008-10-17
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Brandman O;Meyer T
通讯作者:
Meyer T