Statistical organelle dissection of Arabidopsis guard cells using image database LIPS.

Statistical organelle dissection of Arabidopsis guard cells using image database LIPS.
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使用图像数据库 LIPS 对拟南芥保卫细胞进行统计细胞器解剖。

DOI:
10.1038/srep00405
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发表时间:
2012
期刊:
影响因子:
4.6
通讯作者:
Hasezawa, Seiichiro
Hasezawa, Seiichiro
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Higaki, Takumi;Kutsuna, Natsumaro;Hosokawa, Yoichiroh;Akita, Kae;Ebine, Kazuo;Ueda, Takashi;Kondo, Noriaki;Hasezawa, Seiichiro

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为了全面掌握植物气孔运动中的细胞生物学事件,我们用不同的细胞器标记物拍摄了保卫细胞的显微图像。930对拟南芥保卫细胞的28,530个连续光学切片已作为一个新的图像数据库发布,称为植物气孔实时图像(LIPS)。我们可视化的平均细胞器分布在保卫细胞使用概率映射和图像聚类技术。结果表明,肌动蛋白微丝和内质网主要分布在保卫细胞的背侧和连接区。气孔开闭的差减图像显示了气孔运动过程中胞内结构的分布变化,包括内质网的变化。延时成像显示,类似的ER分布变化发生在气孔开放诱导的光照射或飞秒激光照射相邻的表皮细胞,表明我们的图像分析方法已经确定了一种新的ER重新定位气孔开放。
To comprehensively grasp cell biological events in plant stomatal movement, we have captured microscopic images of guard cells with various organelles markers. The 28,530 serial optical sections of 930 pairs of Arabidopsis guard cells have been released as a new image database, named Live Images of Plant Stomata (LIPS). We visualized the average organellar distributions in guard cells using probabilistic mapping and image clustering techniques. The results indicated that actin microfilaments and endoplasmic reticulum (ER) are mainly localized to the dorsal side and connection regions of guard cells. Subtractive images of open and closed stomata showed distribution changes in intracellular structures, including the ER, during stomatal movement. Time-lapse imaging showed that similar ER distribution changes occurred during stomatal opening induced by light irradiation or femtosecond laser shots on neighboring epidermal cells, indicating that our image analysis approach has identified a novel ER relocation in stomatal opening.
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