Romanchuk S M
Tsitol Genet. 2010 Nov-Dec;44(6):3-8.
Results of the electron-microscopic investigation of root apices of Arabidopsis thaliana 3-, 5- and 7-days-old seedlings grown in the stationary conditions and under clinorotation are presented. It was shown the similarity in the root apex cell ultrastructure in control and under clinorotation. At the same time there were some differences in the ultrastructure of statocytes and the distal elongation zone under clinorotation. For the first time the sensitivity of ER-bodies, which are derivatives of GER and contain beta-glucosidase, to the influence of simulated microgravity was demonstrated by increased quantity and area of ER-bodies at the cell section as well as by higher variability of their form under clinorotation. A degree of these changes correlated with the duration of clinorotation. On the basis of experimental data a protective role of ER-bodies in adaptation of plants to microgravity is supposed.
本文展示了在静止条件和回转条件下生长的3日龄、5日龄和7日龄拟南芥幼苗根尖的电子显微镜研究结果。结果表明，对照和回转条件下根尖细胞的超微结构具有相似性。同时，回转条件下平衡细胞和远侧伸长区的超微结构存在一些差异。首次通过细胞切片中内质网体数量和面积的增加以及回转条件下其形态更高的变异性，证明了作为GER衍生物且含有β-葡萄糖苷酶的内质网体对模拟微重力影响的敏感性。这些变化的程度与回转持续时间相关。基于实验数据，推测内质网体在植物适应微重力过程中具有保护作用。
