Extended author information available on the last page of the article Vol.:(0123456789) 1 3 554 Photosynthesis Research (2019) 139:553–567 Keywords Mixotrophy · Chlorophyll fluorescence · Photoinhibition · Light intensity · Microalgae Abbreviations production of ROS is counteracted through the production APX Ascorbate peroxidase of ROS scavengers, which allows the maintenance of cel- CEF Cyclic electron flow lular homeostasis for successful photoprotection under HL Car Carotenoids (Zhao et al. 2017). Chl Chlorophyll Non-photochemical quenching (NPQ) of the excited state DCW Dry cell weight of chlorophyll, which leads to harmless conversion of exci- EOL Enhancement effect of light tation energy into thermal energy, is another coping mech- HL High light anism adopted by plants, algae and cyanobacteria (Kasa- LL Low light jima et al. 2011; Demmig-Adams et al. 2014). The NPQ MDA Malondialdehyde is known to increase the dissipation of excitation energy MHL Mixotrophy under high light through non-radiative processes (heat, as implied above) MLL Mixotrophy under low light within the pigment matrices (the antenna) of PSII, conse- OD Optical density quently decreasing the efficiency of energy transfer towards OJIP Chl a fluorescence transient wherein O refers to PSII photochemistry (Genty et al. 1989). Hence, to enable the minimum fluorescence, J and I for inflections optimal photosynthesis under HL,
Photosynthesis Research – Springer Journals
Published: Jun 2, 2018
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