Microalgae with a truncated light-harvesting antenna to maximize photosynthetic efficiency and biomass productivity: Recent advances and current challenges

Microalgae and the associated biomass have been advocated for various eco-friendly applications. Although, microalgae are a good source of biofuels, metabolites, and value-added products, their commercial cultivation suffers from limited biomass yield due to inefficient photosynthetic efficiency. Minimizing the light-harvesting antenna size of the photosystems has been recognized as an effective mechanism to enhance photosynthetic efficiency and overall biomass productivity in microalgal cultures. Several strategies including mutagenesis, through UV radiations and chemical mutagenesis, genetic engineering, and DNA insertional mutagenesis have been employed to obtain mutant strains possessing a regulated antenna with a regulated limited number of light-harvesting molecules. However, there are still a number of challenges associated with antenna mutants that need to be addressed. This review highlights the recent developments in truncated antenna mutants of microalgae, aiming to increase the photosynthetic efficiency and biomass productivity of the respective cultures. © 2021 Elsevier Ltd

Authors
Kumar V. 1, 2 , Sharma N.3 , Jaiswal K.K.1, 4 , Vlaskin M.S.5 , Nanda M.6 , Tripathi M.K.7 , Kumar S.8
Publisher
Elsevier Ltd
Language
English
Pages
83-91
Status
Published
Volume
104
Year
2021
Organizations
  • 1 Algae Research and Bio-energy Laboratory, Department of Chemistry, Uttaranchal University, Dehradun, Uttarakhand 248007, India
  • 2 Peoples' Friendship University of Russia (RUDN University), Moscow, 117198, Russian Federation
  • 3 Department of Biotechnology, Uttaranchal University, Dehradun, Uttarakhand 248007, India
  • 4 Institute for Water and Wastewater Technology, Durban University of Technology, Durban, 4001, South Africa
  • 5 Joint Institute for High Temperatures of the Russian Academy of Sciences, 13/2 Izhorskaya St, Moscow, 125412, Russian Federation
  • 6 Department of Biotechnology, Dolphin (PG) Institute of Biomedical and Natural Sciences, Dehradun, Uttarakhand 248007, India
  • 7 Agro Produce Processing Division, ICAR–Central Institute of Agricultural Engineering, Bhopal, Madhya Pradesh 462038, India
  • 8 Department of Life Sciences, Graphic Era (Deemed to Be University), Dehradun, Uttarakhand 248002, India
Keywords
Antenna molecule; Light-harvesting complex; Microalgae; Photosynthesis; UV radiations
Date of creation
20.04.2021
Date of change
20.04.2021
Short link
https://repository.rudn.ru/en/records/article/record/71982/
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