1, the color of morning glory will change because it contains a pigment called anthocyanin, which will change the overall color of morning glory and the pigment will be affected by different liquids. When the nature of the liquid in the body changes, the color of the morning glory will also change.
2. The color change of morning glory is caused by the change of pH value of liquid in the body. When the liquid in the body is acidic, anthocyanins will turn red after binding with it, while the liquid in the body is alkaline, so anthocyanins will appear blue after reacting with it.
3. Besides the external influence, the color change of morning glory is also influenced by its own genes. For example, some purple morning glories turn purple because of genetic defects. Therefore, if you see morning glory with strange colors in your daily life, you will have genetic defects or mutations.