Queen Mary College, University of London, UK.
Planta. 1968 Dec;82(4):317-20. doi: 10.1007/BF00386434.
In Amaranthus seedlings the disappearance of the unstable P fr form of phytochrome does not involve dark reversion to P r . The rate constant for the decay of total phytochrome under continuous illumination is directly related to the proportion in the P fr form. This relationship allows calculations to be made of the proportion of P fr under continuous far-red illumination where the amount is too low to be measured directly.
在苋菜幼苗中，不稳定的 P 型光敏色素的消失并不涉及向 P r 的暗逆转。在连续光照下，总光敏色素的衰变速率常数与 P fr 形式的比例直接相关。这种关系允许计算在连续远红光照射下 P fr 的比例，其中数量太低而无法直接测量。
