Abstract
Photosynthesis, as one of the most important chemical reactions, has powered our planet for over four billion years on a massive scale. This review summarizes and highlights the major contributions of Govindjee from fundamentals to applications in photosynthesis. His research included primary photochemistry measurements, in the picosecond time scale, in both Photosystem I and II and electron transport leading to NADP reduction, using two light reactions. He was the first to suggest the existence of P680, the reaction center of PSII, and to prove that it was not an artefact of Chlorophyll a fluorescence. For most photobiologists, Govindjee is best known for successfully exploiting Chlorophyll a fluorescence to understand the various steps in photosynthesis as well as to predict plant productivity. His contribution in resolving the controversy on minimum number of quanta in favor of 8–12 vs 3–4, needed for the evolution of one molecule of oxygen, is a milestone in the area of photosynthesis research. Furthermore, together with Don DeVault, he is the first to provide the correct theory of thermoluminescence in photosynthetic systems. His research productivity is very high: ~ 600 published articles and total citations above 27,000 with an h-index of 82. He is a recipient of numerous awards and honors including a 2022: Lifetime Achievement Award of the International Society of Photosynthesis Research. We hope that the retrospective of Govindjee described in this work will inspire and stimulate the readers to continue probing the photosynthetic apparatuses with new discoveries and breakthroughs.
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Acknowledgements
VM, SPP, SGN, NL, ARKP, AMS, RJ, JJ, AKS and JTP thank the University of Calicut for providing all the resources to carry out this work. VM, NL, ARKP, JJ thank the University Grant Commission (UGC) for providing fund in the form of JRF and SRF. AMS and AKS thank the Council of Scientific and Industrial Research, India (CSIR) for providing fund in the form of JRF and SRF. RJ thank Bayers MEDHA Fellowship Program (PHD- 2023-10454) in the form of JRF.We all thank Govindjee for sharing his own articles (Govindjee 2019a, 2023) and for reading this article before its publication.
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VM, NL, ARKP, JJ thank the University Grant Commission (UGC) for providing fund in the form of JRF and SRF. AMS and AKS thank the Council of Scientific and Industrial Research, India (CSIR) for providing fund in the form of JRF and SRF. RJ thank Bayers MEDHA Fellowship Program (PHD-2023-10454) for providing fund in the form of JRF.
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Veena, M., Sameena, P.P., Sarath, N.G. et al. Revelations on photosystem II, thermoluminescence, and artificial photosynthesis: a retrospective of Govindjee from fundamentals to applications. Physiol Mol Biol Plants 29, 1225–1238 (2023). https://doi.org/10.1007/s12298-023-01373-x
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DOI: https://doi.org/10.1007/s12298-023-01373-x