Modulations in Chlorophyll <i>a</i> Fluorescence Based on Intensity and Spectral Variations of Light

Abstract

Photosynthetic efficiency is significantly affected by both qualitative and quantitative changes during light exposure. The properties of light have a profound effect on electron transport and energy absorption in photochemical reactions. In addition, fluctuations in light intensity and variations in the spectrum can lead to a decrease in photosystem II efficiency. These features necessitate the use of a simple and suitable tool called chlorophyll a fluorescence to study photosynthetic reactions as a function of the aforementioned variables. This research implies that chlorophyll a fluorescence data can be used to determine precise light conditions that help photoautotrophic organisms optimally function.

Keywords

• blue light
• chlorophyll <i>a</i> fluorescence
• F_V/F_M
• high light
• low light
• photosynthesis