神经损伤与修复
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Figure 1｜A realistic value of the number of mitochondria per cell is between one and many.
For example, contrary to the depiction often found in publications and textbooks, the portrayal of cells containing 1000–2000 or more rice grain-shaped mitochondria is a misleading oversimplification. In reality, mitochondria exhibit an amorphous and dynamic morphology that has been recognized for over a century. They can manifest as thread-like structures (mitos) or granular forms (chondros). Cellular stress levels, nutrient availability, exposure to xenobiotics, and other unidentified factors influence the fragmentation or fusion of mitochondria, and consequently, the number of individual mitochondria. A realistic value of the number of mitochondria per cell is between one and many (Figure 1).