Actin filaments and microtubules of Arabidopsis suspension cells show different responses to changing turgor pressure.
Actin filaments and microtubules of Arabidopsis suspension cells show different responses to changing turgor pressure.
复制标题
DOI：
10.1016/j.bbrc.2011.01.081
复制
发表时间：
2011-02
影响因子：
3.1
通讯作者：
Lanchun Shi;Bochu Wang;Wei Gong;Yungang Zhang;Liqing Zhu;Xingyan Yang
中科院分区：
文献类型：
--
作者：
Lanchun Shi;Bochu Wang;Wei Gong;Yungang Zhang;Liqing Zhu;Xingyan Yang
过去几十年在理解膨压与植物细胞生长之间的关系方面取得了巨大进展。新的研究提供的证据表明，膨压可以刺激细胞生长，也是胚胎后器官发生的发育线索。然而，植物细胞膨压传感的亚细胞机制仍不清楚。在这里，我们使用来自悬浮培养物的相对简单的未分化细胞，报告了由膨压变化引起的微管和肌动蛋白微丝重组的实时体内观察。我们发现这两种细胞骨架元件的重组模式不同。我们的结果将有助于理解植物细胞形态发生中细胞骨架、膨压和应激之间的关系。
Past decades have brought great advances in understanding the relationship between turgor pressure and plant cell growth. New studies have provided evidence that turgor pressure acts as a stimulus for cell growth, and is also a developmental cue for post-embryonic organogenesis. However, the subcellular mechanisms underlying plant cell turgor pressure sensing remain unclear. Here, using the relatively simple undifferentiated cells from suspension cultures, we report real-time in vivo observations of the reorganization of microtubules and actin microfilaments induced by turgor pressure changes. We found that these two cytoskeletal elements differed in their reorganization patterns. Our results will be useful in the understanding of the relationship between the cytoskeleton, turgor pressure, and stress in plant cell morphogenesis.