Development and characterization of Chlamydomonas reinhardtii low chlorophyll mutants to improve photosynthetic efficiency and biomass

Vani, M. Vidya; Basha, P. Osman; Chandrasekhar, T.; Riazunnisa, Khateef

doi:10.1007/s40415-023-00887-8

Cited by 2 publications

(2 citation statements)

References 44 publications

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“…Recent studies have suggested that optimization of LHC size and the amount of chlorophylls increased photosynthetic efficiency and biomass yield 68 – 70 . Moreover, ZmGLK -overexpressing transformants in rice presented enhanced photosynthesis activity, biomass, and grain yields 71 , 72 .…”

Section: Discussionmentioning

confidence: 99%

BPG4 regulates chloroplast development and homeostasis by suppressing GLK transcription factors and involving light and brassinosteroid signaling

Tachibana,

Abe,

Marugami

et al. 2024

Nat Commun

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Chloroplast development adapts to the environment for performing suitable photosynthesis. Brassinosteroids (BRs), plant steroid hormones, have crucial effects on not only plant growth but also chloroplast development. However, the detailed molecular mechanisms of BR signaling in chloroplast development remain unclear. Here, we identify a regulator of chloroplast development, BPG4, involved in light and BR signaling. BPG4 interacts with GOLDEN2-LIKE (GLK) transcription factors that promote the expression of photosynthesis-associated nuclear genes (PhANGs), and suppresses their activities, thereby causing a decrease in the amounts of chlorophylls and the size of light-harvesting complexes. BPG4 expression is induced by BR deficiency and light, and is regulated by the circadian rhythm. BPG4 deficiency causes increased reactive oxygen species (ROS) generation and damage to photosynthetic activity under excessive high-light conditions. Our findings suggest that BPG4 acts as a chloroplast homeostasis factor by fine-tuning the expression of PhANGs, optimizing chloroplast development, and avoiding ROS generation.

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Section: Discussionmentioning

confidence: 99%

BPG4 regulates chloroplast development and homeostasis by suppressing GLK transcription factors and involving light and brassinosteroid signaling

Tachibana,

Abe,

Marugami

et al. 2024

Nat Commun

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“…Excess-absorbed light in NPQ is converted to heat, resulting in energy wastage. Vani et al (2023) generated mutants of C. reinhardtii with shortened light-harvesting antennae that exhibited a lower NPQ, higher biomass, and higher PSII efficacy compared to the wild-type ( Vani et al, 2023 ).…”

Section: Microalgae For Sustainable Bioeconomymentioning

confidence: 99%

Harnessing genetic engineering to drive economic bioproduct production in algae

Gupta,

Kang,

Pathania

et al. 2024

Front. Bioeng. Biotechnol.

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Our reliance on agriculture for sustenance, healthcare, and resources has been essential since the dawn of civilization. However, traditional agricultural practices are no longer adequate to meet the demands of a burgeoning population amidst climate-driven agricultural challenges. Microalgae emerge as a beacon of hope, offering a sustainable and renewable source of food, animal feed, and energy. Their rapid growth rates, adaptability to non-arable land and non-potable water, and diverse bioproduct range, encompassing biofuels and nutraceuticals, position them as a cornerstone of future resource management. Furthermore, microalgae’s ability to capture carbon aligns with environmental conservation goals. While microalgae offers significant benefits, obstacles in cost-effective biomass production persist, which curtails broader application. This review examines microalgae compared to other host platforms, highlighting current innovative approaches aimed at overcoming existing barriers. These approaches include a range of techniques, from gene editing, synthetic promoters, and mutagenesis to selective breeding and metabolic engineering through transcription factors.

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Development and characterization of Chlamydomonas reinhardtii low chlorophyll mutants to improve photosynthetic efficiency and biomass

Cited by 2 publications

References 44 publications

BPG4 regulates chloroplast development and homeostasis by suppressing GLK transcription factors and involving light and brassinosteroid signaling

BPG4 regulates chloroplast development and homeostasis by suppressing GLK transcription factors and involving light and brassinosteroid signaling

Harnessing genetic engineering to drive economic bioproduct production in algae

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