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Plant programmed cell death and the point of no return

机译:工厂编程的细胞死亡和无归之路

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The point of no return during programmed cell death (PCD) is defined as the step beyond which the cell is irreversibly committed to die. Some plant cells can be saved before this point by inducing the formation of functional chloroplasts. A visibly senescent tissue will then become green again and live for months or years. The mechanism of this reversal is only partially known. The point of no return in fungi and animals is often associated with lack of mitochondrial function. In plant cells that do not regreen, there is no evidence for PCD reversal that results in a long life. It is unclear why chloroplast-containing cells, in contrast to those with only mitochondria, have long lives after PCD reversal.
机译:程序性细胞死亡(PCD)期间的不返回点被定义为不可逆转地使细胞死亡的步骤。通过诱导功能性叶绿体的形成,可以在此之前保存一些植物细胞。明显衰老的组织将再次变绿并存活数月或数年。这种逆转的机制仅是部分已知的。真菌和动物无法返回的点通常与线粒体功能缺乏有关。在不重新绿化的植物细胞中,没有证据表明PCD逆转可以延长寿命。目前尚不清楚为什么与仅具有线粒体的细胞相比,含叶绿体的细胞在PCD逆转后具有长寿命。

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