Enhancing Plant Photosynthesis using Carbon Dots as Light Converter and Photosensitizer

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 7, 2024

Abstract Improving photosynthetic efficiency is pivotal for CO 2 -based biomanufacturing and agriculture purposes. Despite the progress on biohybrids integrating biocatalysts with synthetic materials, nanomaterials improved optical photoelectrochemical properties are still needed to increase energy-conversion efficiency. Here, we present a novel approach using carbon dots (CDs) as both intracellular photosensitizers light converters enhancing solar energy utilization in organisms. The CDs were produced from cyanobacterial biomass used convert broad spectrum of irradiation red light. We demonstrated that nanosized incorporated into cells transferred light-excited electrons electron transfer chain. consisting Synechococcus elongatus exhibited increased growth rates, enhanced activities photosystems, accelerated linear transport, compared only. supplementation -fixation rate -to-glycerol production by 2.4-fold 2.2-fold, respectively. Furthermore, shown enhance photosynthesis promote Arabidopsis thaliana . fresh weight plant was 1.8-fold addition. These results reveal simultaneous photosensitization spectral modification could substantially improve natural photosynthesis. This study presents an attractive nanomaterial great application potential solar-powered biomanufacturing.

Language: Английский

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Transcriptome-Wide Identification of m6A Writers, Erasers and Readers and Their Expression Profiles under Various Biotic and Abiotic Stresses in Pinus massoniana Lamb.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(14), P. 7987 - 7987

Published: July 22, 2024

-methyladenosine (m

Language: Английский

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N6-methyladenosine mRNA methylation is important for the light response in soybean

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: April 4, 2023

N6-methyladenosine (m6A) modification of messenger RNA (mRNA) is the most prevalent and abundant in eukaryotic mRNA posttranscriptionally modulates transcriptome at almost all stages metabolism. In plants, m6A crucial for embryonic-phase growth, flowering time control, microspore generation fruit maturation. However, role plant responses to light, important environmental stimulus, remains unexplored. Here, we profile Williams 82, a soybean cultivar, reveal that highly conserved plays an response light stimuli soybean. Similar case Arabidopsis, enriched not only around stop codon within 3'UTR but also start codon. Moreover, genes with methylation occurring have higher expression levels are more prone alternative splicing. The core signaling pathway, GmSPA1a, GmPRR5e GmBIC2b, undergo changes transcription light. KEGG pathway analysis revealed differentially expressed differential peaks were involved "photosynthesis" "circadian rhythm" pathways. Our results highlight played by epitranscriptomic provide solid basis determining functional on this plant.

Language: Английский

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Photosystems under high light stress: throwing light on mechanism and adaptation

Photosynthetica, Journal Year: 2023, Volume and Issue: 61(SPECIAL ISSUE 2023/1), P. 250 - 263

Published: May 30, 2023

High light stress decreases the photosynthetic rate in plants due to photooxidative damage apparatus, photoinhibition of PSII, and/or PSI. The dissipation excess energy by nonphotochemical quenching and degradation D1 protein PSII its repair cycle help against damage. Light also activates stress-responsive nuclear genes through accumulation phosphonucleotide-3'-phosphoadenosine- 5'-phosphate, methylerythritol cyclodiphosphate, reactive oxygen species which comprise chloroplast retrograde signaling pathway. Additionally, hormones, such as abscisic acid, cytokinin, brassinosteroids, gibberellins, play a role acclimation fluctuations. Several alternate electron flow mechanisms, offset electrons, include activation plastid or plastoquinol terminal oxidase, cytochrome b6/f complex, cyclic PSI, Mehler ascorbate peroxidase pathway water-water cycle, mitochondrial alternative oxidase pathway, photorespiration. In this review, we provided insights into high stress-mediated apparatus strategies mitigate decreasing antennae size, enhancing NPQ introduction mutants, expression algal proteins improve rates engineering ATP synthase.

Language: Английский

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mRNA ADENOSINE METHYLASE promotes drought tolerance through N⁶‐methyladenosine‐dependent and independent impacts on mRNA regulation in Arabidopsis

New Phytologist, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 27, 2024

Summary Among many mRNA modifications, adenine methylation at the N 6 position (N ‐methyladenosine, m A) is known to affect biology extensively. The influence of A has yet be assessed under drought, one most impactful abiotic stresses. We show that Arabidopsis thaliana (L.) Heynh. (Arabidopsis) plants lacking ADENOSINE METHYLASE (MTA) are drought‐sensitive. Subsequently, we comprehensively assess impacts MTA‐dependent changes during drought on abundance, stability, and translation in Arabidopsis. During there a global trend toward hypermethylation protein‐coding transcripts does not occur mta . also observe complex regulation transcript‐specific level, possibly reflecting compensation by other components. Importantly, subset hypermethylated an manner exhibited reduced turnover , compared with wild‐type (WT) plants, drought. Additionally, MTA transcript stability independently A. correlate drought‐associated deposition increased modulators response, such as RD29A COR47 COR413 ALDH2B ERD7 ABF4 WT, which impaired dynamic and, alongside MTA, promotes tolerance regulating drought‐responsive translation.

Language: Английский

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