Cell response to quasi-monochromatic light with different coherence

The problem of the light coherence effect on the magnitude of the photoinduced cell response is discussed. The origins of ambiguous interpretation of the known experimental results are considered. Using the biological models, essentially differing in anatomy, morphology and biological functions (acr...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2015-01, Vol.45 (4), p.351-357
Main Authors: Budagovsky, A.V., Solovykh, N.V., Budagovskaya, O.N., Budagovsky, I.A.
Format: Article
Language:English
Subjects:
60 APPLIED LIFE SCIENCES
Assessments
Biological
BIOLOGICAL FUNCTIONS
BIOLOGICAL MODELS
BIOLOGICAL RADIATION EFFECTS
cell size
Coherence
COHERENCE LENGTH
coherence volume
Correlation
CORRELATION FUNCTIONS
Germination
IN VITRO
laser ligth
Mathematical models
MONOCHROMATIC RADIATION
MORPHOLOGY
photocontrol processes
plants
Pollen
quasi-monochromatic light
Radishes
VISIBLE RADIATION
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Summary:The problem of the light coherence effect on the magnitude of the photoinduced cell response is discussed. The origins of ambiguous interpretation of the known experimental results are considered. Using the biological models, essentially differing in anatomy, morphology and biological functions (acrospires of radish, blackberry microsprouts cultivated in vitro, plum pollen), the effect of statistical properties of quasi-monochromatic light on the magnitude of the photoinduced cell response is shown. It is found that for relatively low spatial coherence, the cell functional activity changes insignificantly. The maximal enhancement of growing processes (stimulating effect) is observed when the coherence length and the correlation radius are greater than the cell size, i.e., the entire cell fits into the field coherence volume. In this case, the representative indicators (germination of seeds and pollen, the spears length) exceeds those of non-irradiated objects by . For more correct assessment of the effect of light statistical properties on photocontrol processes, it is proposed to replace the qualitative description (coherent - incoherent) with the quantitative one, using the determination of spatial and temporal correlation functions and comparing them with the characteristic dimensions of the biological structures, e.g., the cell size.
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2015v045n04ABEH015594