BEAMS H W, TAHMISIAN T N, DEVINE R L
J Biophys Biochem Cytol. 1955 May 25;1(3):197-202. doi: 10.1083/jcb.1.3.197.
For purposes of description, the cells of the Malpighian tubules of the grasshopper may be divided into basal, intermediate, and apical zones. The basal zone of the cell contains what appears to be an elaborate infolding of the cell membrane at the base. This condition results in the basal cell cytoplasm being divided into many compartments. The compartments contain mitochondria that are often arranged in rows. Other small bodies which possess relatively dense outer borders and less dense cores were observed within the compartments. These bodies are unidentified. The brush border of the apical zone contains a multitude of vertically arranged protoplasmic processes. Stages were found which suggest that the filamentous mitochondria migrate from the cell body to the base of the protoplasmic processes, where they enter them and move apically. Some of the mitochondria were observed at the very tips of the processes where they enlarge producing an accompanying bulging of the tips. This condition is interpreted as a stage in the pinching off of the mitochondria-laden tips of the protoplasmic processes.
为便于描述，蚱蜢马氏管的细胞可分为基部区、中间区和顶端区。细胞的基部区在基部含有看起来是细胞膜的精细内褶。这种情况导致基部细胞细胞质被分成许多小室。这些小室含有通常成行排列的线粒体。在这些小室内还观察到其他一些小体，其具有相对致密的外边界和密度较小的核心。这些小体尚未鉴定出来。顶端区的刷状缘含有大量垂直排列的原生质突起。发现了一些阶段，表明丝状线粒体从细胞体迁移到原生质突起的基部，在那里它们进入突起并向顶端移动。在突起的顶端观察到一些线粒体，它们在那里膨大，导致顶端随之膨出。这种情况被解释为原生质突起含线粒体顶端缢断过程中的一个阶段。
