The role of cell wall in plant embryogenesis.
The role of cell wall in plant embryogenesis.
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DOI：
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发表时间：
2002
影响因子：
8.3
通讯作者：
R. Malinowski;M. Filipecki
中科院分区：
文献类型：
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作者：
R. Malinowski;M. Filipecki
本文综述了细胞壁参与植物胚胎发生的最新研究进展。在植物发育过程中，细胞壁受到精确的调节。在此过程中，观察到细胞壁和原生质体之间的双向信息交换。细胞壁还介导细胞间（质外体）和细胞间（共质体）的信息流。特别是某些特定细胞壁化合物水解产生的产物可以在发育过程中充当短距离信号传导分子。寡糖素是一组这样的产品。它们的活性和来源将研究人员的注意力集中在细胞壁的生化组成和一些细胞壁酶的活性上。对胚胎体型的巨大影响还包括细胞壁合成机制，包括囊泡分泌途径。此外，膨压与抵消细胞壁和邻近细胞（在高等生物中）之间的相互作用产生了影响整个植物发育的特定机械力。我们的结论是，发现的因素，可以影响细胞壁的生理和建筑是至关重要的，更好地了解植物胚胎发生。在这篇综述中，我们总结了一些最近的实验数据报道植物细胞壁参与胚胎发生，特别强调体细胞胚胎发生。
This review presents recent data about cell wall involvement in plant embryogenesis. During plant development, the cell wall is subjected to precise regulation. During this process a bidirectional information exchange between the cell wall and the protoplast is observed. The cell wall also mediates in the cell-cell (apoplastic) and cell to cell (symplastic) information flow. Especially some products derived from the hydrolysis of specific cell wall compounds can act as short distance signal transduction molecules during the development. Oligosaccharins are a group of such products. Their activity and sources focused the researchers' attention on the biochemical composition of the cell wall and the activity of some cell wall enzymes. The dramatic influence on the embryo body shape has also the cell wall synthesis machinery, including vesicular secretion pathways. Moreover, the interplay between the turgor pressure and counteracting cell walls and neighbouring cells (in higher organisms) creates the specific mechanical forces influencing the development of the whole plant. We conclude that discovering factors which can influence cell wall physiology and architecture is crucial for a better understanding of plant embryogenesis. In this review we summarize some recent experimental data reporting plant cell wall involvement in embryogenesis, putting special emphasis on somatic embryogenesis.