Ambartsumian M A
Tsitologiia. 1975 Sep;17(9):1094-7.
The rate of multiplication of Paramecium caudatum was studied using individual cultures with media containing 0.001, 0.005, 0.008 and 0.01% borate, resp. At room temperature (20--21 degrees C) with two first concentrations of boron, the ciliates multiply normally over 4 months often surpassing the multiplication rate of the control line. With the increase of boron concentration up to 0.008%, the division rate in paramecia decreases significantly, reaching the control rate only by the end of the 3rd month. At high temperature (26--27 degrees) with 0.001 and 0.005% of boron in the media, P. caudatum was also seen to multiply normally. At lower temperature (15--17 degrees) all the test concentrations of borate used decreased the rate of division, and the higher the concentration of boron the more pronounced was the depressing effect.
利用分别含有0.001%、0.005%、0.008%和0.01%硼酸盐的培养基进行单独培养，研究了尾草履虫的繁殖率。在室温（20 - 21摄氏度）下，对于前两种硼浓度，纤毛虫在4个月内正常繁殖，繁殖率常常超过对照品系。随着硼浓度增加到0.008%，草履虫的分裂率显著下降，直到第3个月末才达到对照率。在高温（26 - 27摄氏度）下，培养基中含有0.001%和0.005%的硼时，尾草履虫也能正常繁殖。在较低温度（15 - 17摄氏度）下，所有使用的硼酸盐测试浓度都降低了分裂率，硼浓度越高，抑制作用越明显。
