The stiffness of the flagella of impaled bull sperm.
The stiffness of the flagella of impaled bull sperm.
复制标题
被刺穿的公牛精子鞭毛的硬度。
DOI：
10.1016/s0006-3495(73)85997-1
复制
发表时间：
1973
影响因子：
3.4
通讯作者：
R. Rikmenspoel
中科院分区：
文献类型：
--
作者：
C. Lindemann;W. Rudd;R. Rikmenspoel
固定的公牛精子鞭毛的弹性刚性(刚性)已经通过一种允许对实验系统进行直接分析处理的操纵技术来确定。测定外源性三磷酸腺苷和二磷酸腺苷的作用。结果表明，ATP起增塑剂的作用，而ADP不起增塑剂的作用。在不含三磷酸腺苷的培养液中测得的鞭毛硬度是在10 mM三磷酸腺苷存在时测得的15倍。在没有三磷酸腺苷存在的情况下测得的僵硬样僵硬在三磷酸腺苷存在下是可逆的，似乎与收缩系统状态的转变有关。
The elastic rigidity (stiffness) of impaled motionless bull sperm flagella has been determined by a manipulatory technique which permitted direct analytical treatment of the experimental system. The effects of external ATP and ADP were measured. It was found that ATP acts as a plasticizing agent, while ADP does not. The stiffness measured for flagella in a medium without ATP was 15 times greater than the value measured with 10 mM ATP present. The rigor-like stiffness measured with no ATP present is reversible with ATP and seems to be correlated to a transition in the state of the contractile system.