Simulation of Fluorescence Spectrum Related to Photosynthesis

IF 4.033 Q4 Biochemistry, Genetics and Molecular Biology Biophysics Pub Date : 2024-03-18 DOI:10.1134/S0006350923060222
S. I. Zienko, V. L. Zhbanova
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Abstract

A mathematical study of fluorescence spectrum related to photosynthesis action spectrum was carried out, the calculation of typical photosynthesis spectra on the frequency scale for red and blue light was performed, and the transition of the photosynthesis action spectrum from wavelengths to the frequency scale was carried out; as a result of the inverse Fourier transform, a relaxation curve of the pulse (time) characteristic of fluorescence was numerically obtained. It turned out that the radius vector of the pulse response modulus in polar coordinates made one half turn or half the period of light oscillations in time. It has been found that the optical medium of a plant has a negative volume charge of electrons during relaxation and has inverse properties and properties of coherent radiation. The condition of neutrality of the material environment is not fulfilled. It was revealed that the ratios of variable chlorophyll fluorescence for red and blue light have almost the same value. An analysis of the dependence of the quality factor of the chlorophyll spectrum on frequency showed that the loss of fluorescence energy in blue light significantly exceeds the loss of energy in red light. The proposed method can be used for rapid analysis of photosynthesis intensity. It is also concluded that plants can emit ultra-wideband signals. The relaxation time of chlorophyll fluorescence is shorter than the relaxation time of electron polarization in atoms (molecules). As a result, an inversion of populations is created in the optical medium of chlorophyll, that is, there are more atoms at the upper energy level than at the lower one. Due to this, forced emission and amplification of the light of radiative recombination occurs. In this case, the emission of fluorescence light becomes coherent. All these properties of plants were considered for the first time and were not described in either the domestic or foreign literature.

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模拟与光合作用有关的荧光光谱
摘要 对与光合作用光谱相关的荧光光谱进行了数学研究,计算了红光和蓝光在频率尺度上的典型光合作用光谱,并将光合作用光谱从波长尺度过渡到频率尺度;通过反傅里叶变换,数值得到了荧光脉冲(时间)特性的弛豫曲线。结果发现,脉冲响应模量的极坐标半径矢量在时间上转了半圈,即光振荡周期的一半。研究发现,植物的光学介质在弛豫过程中电子的体积电荷为负,具有反相性质和相干辐射性质。物质环境的中性条件没有得到满足。研究表明,红光和蓝光的可变叶绿素荧光比值几乎相同。叶绿素光谱的品质因数与频率的关系分析表明,蓝光中荧光能量的损失明显超过红光中的能量损失。所提出的方法可用于快速分析光合作用强度。研究还得出结论,植物可以发射超宽带信号。叶绿素荧光的弛豫时间比原子(分子)中电子极化的弛豫时间短。因此,在叶绿素的光学介质中产生了种群反转,即高能级的原子多于低能级的原子。因此,辐射重组的光会强制发射和放大。在这种情况下,荧光的发射会变得连贯。植物的所有这些特性都是第一次被考虑到,国内外的文献中都没有描述过。
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来源期刊
Biophysics
Biophysics Biochemistry, Genetics and Molecular Biology-Biophysics
CiteScore
1.20
自引率
0.00%
发文量
67
期刊介绍: Biophysics is a multidisciplinary international peer reviewed journal that covers a wide scope of problems related to the main physical mechanisms of processes taking place at different organization levels in biosystems. It includes structure and dynamics of macromolecules, cells and tissues; the influence of environment; energy transformation and transfer; thermodynamics; biological motility; population dynamics and cell differentiation modeling; biomechanics and tissue rheology; nonlinear phenomena, mathematical and cybernetics modeling of complex systems; and computational biology. The journal publishes short communications devoted and review articles.
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