Meristematic sculpting in fruit development
Meristematic sculpting in fruit development
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DOI：
10.1093/jxb/erp031
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发表时间：
2009-04-01
影响因子：
6.9
通讯作者：
Ostergaard, Lars
中科院分区：
文献类型：
--
作者：
Girin, Thomas;Sorefan, Karim;Ostergaard, Lars
生活中形状的多样性令人震惊，当我们研究我们水果碗中观察到的各种形状时，这一点尤其生动。人们开始了解拟南芥果实的一些组织是如何塑造的，揭示了植物如何通过调节分生组织特性的程度来塑造植物的形态。在这个果实中，KNOX I和BLH分生组织特征基因通过维持这些组织处于“准分生组织”的命运来促进这些组织的增殖。这些基因的作用被促进瓣膜形成的不对称叶片活动以及锯齿状/丝状花和FRUITFULL活动所反对。这让人想起这些基因在茎顶端分生组织和叶片发育中的功能。在这篇综述中，目的是将拟南芥果实的中间组织作为一个改良的分生组织来呈现，并从其他植物器官推断我们对果实发育的知识。
The diversity of shape in life is astounding, and this is particularly vivid when the varied forms observed in our fruit bowls are examined. How some of the tissues of the Arabidopsis fruit are moulded is starting to be understood, revealing how plants may sculpt plant form by modulating the degree of meristematic properties. In this fruit the KNOX I and BLH meristem identity genes promote medial tissue proliferation by maintaining these tissues in a 'quasi-meristematic' fate. The action of these genes is opposed by ASYMMETRIC LEAVES activity that promotes valve formation together with JAGGED/FILAMENTOUS FLOWER and FRUITFULL activities. This is reminiscent of the function of these genes in the shoot apical meristem and in leaf development. In this review, the aim is to present the medial tissues of the Arabidopsis fruit as a modified meristem and extrapolate our knowledge from other plant organs to fruit development.