How can you prove that a plant is a whole organism?

To prove that a plant is an integral organism in which all processes are interconnected, you need to observe a plant in which one of its organs is damaged. For example, damage to the root system leads to impaired mineral nutrition. As a result, all other organs receive less water, and the plant begins to dry out. except
Moreover, the process of photosynthesis is disrupted, for which water is a raw material. And this, in turn, leads to a lack of organic nutrition for all plant organs.
Thus, we see that the disruption of the vital activity of any one organ affects the state of the entire plant, that is, all organs are interconnected, the plant is an integral organism.