Avetisova L V, Chel'tsova L P
Ontogenez. 1979;10(5):491-501.
The mitochondria of apical meristem cells in the wheat (Triticum aestivum L.) shoot were studied during ontogenesis using electron microscope and morphometrical methods. Changes in their structure were followed from the juvenile mitochondria of the seed embryonic ear cells. The parameters of the "average" mitochondrion, such as profile area, outer membrane length, were shown to differ relatively weakly during the periods with different meristem activity. Changes in the internal structure of the mitochondria having the developed system of crystae in the actively growing apices and those with weakly developed crystae in the resting seed or low active "waiting meristem" are much more pronounced. The relative volume of mitochondria, their number per unit of cytoplasm volume and total length of membranes suffer relatively insignificant changes during the vegetative phase and increase markedly during the prefloral phase when the apex is preparing itself for generative differentiation.
利用电子显微镜和形态计量学方法，研究了小麦（Triticum aestivum L.）茎尖分生组织细胞线粒体在个体发育过程中的情况。从种子胚耳细胞的幼嫩线粒体开始追踪其结构变化。“平均”线粒体的参数，如轮廓面积、外膜长度，在分生组织活动不同的时期相对变化较弱。在活跃生长的顶端具有发达嵴系统的线粒体和休眠种子或低活性“等待分生组织”中嵴发育较弱的线粒体，其内部结构变化更为明显。线粒体的相对体积、单位细胞质体积中的数量以及膜的总长度在营养阶段变化相对不显著，而在花前阶段，当顶端为生殖分化做准备时则显著增加。
