The aftermath of long-term exposure to non-ionizing radiation on laboratory cultivated pine plants

Authors: Stefi AL, Margaritis LH, Christodoulakis NS

Year: September 2017

Category: Plant Biology

Journal: Flora

DOI: https://doi.org/10.1016/j.flora.2017.07.016

URL: http://www.sciencedirect.com/science/article/pii/S0367253017332760

Abstract

Overview

This study investigates the effects of long-term exposure to non-ionizing radiation on Pinus halepensis, commonly known as Aleppo pine, grown under laboratory conditions. This response is evaluated through various plant growth and physiological parameters.

Findings

  • The plants were exposed to radiation from a DECT base-unit over an extended period.
  • Significant observation included:
    • Reduced sprouting potential and fresh weight in exposed plants.
    • Decrease in above ground and root biomass.
    • Lower content of photosynthetic pigments.
    • Increased ROS levels indicating stress responses.
    • Severe deformities in chloroplast structures of the exposed leaves, although no disruption in chloroplast envelopes.

Conclusion

The long-term exposure to non-ionizing radiation had notable detrimental effects on the growth and physiological health of the Aleppo pine plants. In particular, photosynthesis was impaired, and cellular structures related to it were damaged, pointing to a concerning impact of such radiation on plant health.

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