Darbelley N, Driss-Ecole D, Perbal G
Universite P. et M. Curie, Laboratoire de Cytologie Experimentale et Morphogenese Vegetale, Paris, France.
Adv Space Res. 1986;6(12):157-60. doi: 10.1016/0273-1177(86)90080-3.
A cytological study was performed on Maize roots (Zea mays) which were grown in space (flight Biocosmos 1985) and on control roots on earth. Two criteria were selected: cell elongation in the cortical zone in the four mm of the extremity of the root and mitotic activity of the meristem. The results show that in microgravity the length of the meristem is reduced of 1/3 and that its mitotic activity increases of about twofold comparatively to the synchronous control. In parallel the cell differentiation begin closer to the root cap junction. These results are discussed relative to the influence of gravistimulation on cell proliferation and cell differentiation in roots.
对在太空（1985年生物宇宙飞行任务）中生长的玉米根（玉米）以及地球上的对照根进行了细胞学研究。选择了两个标准：根末端四毫米处皮层区域的细胞伸长以及分生组织的有丝分裂活性。结果表明，在微重力条件下，分生组织的长度减少了1/3，并且其有丝分裂活性相较于同步对照增加了约两倍。与此同时，细胞分化开始于更靠近根冠连接处的位置。讨论了这些结果与重力刺激对根中细胞增殖和细胞分化的影响的关系。
