The Behavior of Mitochondria in Pollen Mother Cells of Tradescantia reflexa

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Abstract
The behavior of mitochondria was studied under the electron microscope in PMC of T. reflexa fixed with OSO4 and KMnO4. Mitochondria were scattered throughout the cytoplasm in prophase I. With the breakdown of the nuclear membrane at prometaphase I, mitochondria were found in the nuclear and spindle area. In addition to mitochondria, dictyosomes, lipid granules and even plastids were found in the spindle. Mitochondria in the spindle area gradually increase in number as meiosis progresses. At mid-telophase most of the mitochondria are aggregated around the equator of the spindle. By the time the cell plate is formed, the mitochondria are distributed evenly between the daughter cells.