细胞壁转化酶作为一种调节因子，通过种子发育早期的葡萄糖信号传导来决定胚乳和胚胎的顺序发育。
Cell wall invertase as a regulator in determining sequential development of endosperm and embryo through glucose signaling early in seed development.
作者信息
Wang Lu, Liao Shengjin, Ruan Yong-Ling
机构信息
School of Environmental and Life Sciences; The University of Newcastle; Callaghan, NSW Australia; Australia-China Research Centre for Crop Improvement; The University of Newcastle; Callaghan, NSW Australia.
School of Environmental and Life Sciences; The University of Newcastle; Callaghan, NSW Australia.
出版信息
Plant Signal Behav. 2013 Jan;8(1):e22722. doi: 10.4161/psb.22722. Epub 2012 Dec 6.
Seed development depends on coordination among embryo, endosperm and seed coat. Endosperm undergoes nuclear division soon after fertilization, whereas embryo remains quiescent for a while. Such a developmental sequence is of great importance for proper seed development. However, the underlying mechanism remains unclear. Recent results on the cellular domain- and stage-specific expression of invertase genes in cotton and Arabidopsis revealed that cell wall invertase may positively and specifically regulate nuclear division of endosperm after fertilization, thereby playing a role in determining the sequential development of endosperm and embryo, probably through glucose signaling.
种子发育依赖于胚、胚乳和种皮之间的协调。受精后不久胚乳就会进行核分裂，而胚会静止一段时间。这样的发育顺序对于种子的正常发育非常重要。然而，其潜在机制仍不清楚。最近关于棉花和拟南芥中转化酶基因在细胞区域和阶段特异性表达的研究结果表明，细胞壁转化酶可能在受精后正向且特异性地调节胚乳的核分裂，从而可能通过葡萄糖信号传导在决定胚乳和胚的顺序发育中发挥作用。
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