Light regulation of the biosynthesis of phenolics, terpenoids, and alkaloids in plants

Communications Biology, Год журнала: 2023, Номер 6(1)

Опубликована: Окт. 18, 2023

Abstract Biosynthesis of specialized metabolites (SM), including phenolics, terpenoids, and alkaloids, is stimulated by many environmental factors light. In recent years, significant progress has been made in understanding the regulatory mechanisms involved light-stimulated SM biosynthesis at transcriptional, posttranscriptional, posttranslational levels regulation. While several excellent reviews have primarily focused on impacts general factors, light, an individual class SM, here we highlight regulation three major pathways light-responsive gene expression, microRNA regulation, modification proteins. addition, present our future perspectives this topic.

Язык: Английский

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Photoreceptor-induced sinapate synthesis contributes to photoprotection in Arabidopsis

PLANT PHYSIOLOGY, Год журнала: 2024, Номер 196(2), С. 1518 - 1533

Опубликована: Июнь 26, 2024

Abstract Plants must balance light capture for photosynthesis with protection from potentially harmful ultraviolet (UV) radiation. Photoprotection is mediated by concerted action of photoreceptors, but the underlying molecular mechanisms are not fully understood. In this study, we provide evidence that UV RESISTANCE LOCUS 8 (UVR8) UV-B, phytochrome red, and cryptochrome blue-light photoreceptors converge on induction FERULIC ACID 5-HYDROXYLASE 1 (FAH1) encodes a key enzyme in phenylpropanoid biosynthesis pathway, leading to accumulation UV-absorbing sinapate esters Arabidopsis (Arabidopsis thaliana). FAH1 depends basic leucine zipper transcription factors ELONGATED HYPOCOTYL 5 (HY5) HY5 HOMOLOG function downstream all 3 photoreceptors. Noticeably, mutants hyperactive UVR8 signaling rescue fah1 sensitivity. Targeted metabolite profiling suggests phenotypic due metabolites derived precursors synthesis, namely, coumaroyl glucose feruloyl glucose. Our genetic dissection pathway combined metabolomic physiological analyses show both flavonoids contribute photoprotection sinapates playing major role screening. findings indicate photoreceptor-mediated regulation subsequent “sunscreen” compounds protective mitigate damage, preserve photosynthetic performance, ensure plant survival under UV.

Язык: Английский

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Comprehensive characterization and expression profiling of BBX gene family in soybean in response to UV-B stress

Plant Stress, Год журнала: 2024, Номер 13, С. 100560 - 100560

Опубликована: Авг. 6, 2024

The BBX gene family encodes transcription factors that regulate several biological processes, such as plant growth, development, and stress response. They have been identified thoroughly studied in numerous species. functional role of the against UV-B soybean has not well documented. Herein, this study focused on a comprehensive investigation GmBBX genes their expression patterns response to exposure. A total 184 were analyzed determine conserved domain. Single double B-box CCT domains found across these proteins, indicating potential diversity. protein physicochemical properties showcased diverse characteristics, highlighting molecular size, stability, hydrophobicity. Phylogenetic analysis revealed five distinct clades, showcasing non-uniform distribution genes. Chromosomal mapping showed 20 chromosomes soybean. highest number (26) chromosome 13, whereas 5 15 displayed lowest (3 each). Gene structure variations exon-intron patterns, while motif composition unveiled motifs among proteins. duplication indicated expansion was linked with tandem dispersed duplications. ontology enrichment terms associated light stimulus, abiotic stress, functions zinc ion binding. promoter region reveals cis-acting elements related hormones, light, responses. exhibited differential suggesting possible defense stress. This will provide solid foundation for further mechanisms

Язык: Английский

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Photoreceptor–induced sinapate synthesis contributes to photoprotection in Arabidopsis

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Фев. 27, 2024

ABSTRACT Plants must balance light capture for photosynthesis with protection from potentially harmful ultraviolet radiation (UV). Photoprotection is mediated by concerted action of photoreceptors, but the underlying molecular mechanisms are not fully understood. In this study, we provide evidence that UV RESISTANCE LOCUS 8 (UVR8) UV-B-, phytochrome red-, and cryptochrome blue-light photoreceptors converge on induction FERULIC ACID 5-HYDROXYLASE 1 ( FAH1 ) encodes a key enzyme in phenylpropanoid biosynthesis pathway, leading to accumulation UV-absorbing sinapate esters. depends bZIP transcription factors ELONGATED HYPOCOTYL 5 (HY5) HY5-HOMOLOG (HYH) function downstream all three photoreceptors. Noticeably, mutants hyperactive UVR8 signalling rescue fah1 sensitivity. Targeted metabolite profiling suggests phenotypic due metabolites derived precursors synthesis, namely coumaroyl-glucose feruloyl-glucose. Our genetic dissection pathway combined metabolomic physiological analyses show both esters flavonoids contribute photoprotection sinapates playing major role screening. findings indicate photoreceptor-mediated regulation subsequent “sunscreen” compounds protective mechanism mitigate damage, preserving photosynthetic performance, ensuring plant survival under UV.

Язык: Английский

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Phytohormone-regulated UV-B photomorphogenesis and acclimation

Environmental and Experimental Botany, Год журнала: 2024, Номер 224, С. 105830 - 105830

Опубликована: Май 31, 2024

Язык: Английский

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Light Signaling and Plant Secondary Metabolites

Опубликована: Окт. 17, 2024

Язык: Английский

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The BBX family and their response to abiotic stress in ginger (Zingiber officinale Roscoe)

Опубликована: Июнь 27, 2024

Background Ginger (Zingiber officinale Roscoe), a medicinal and edible plant in Chinese culture, is often impacted by adverse environmental conditions. BBX genes are fundamental regulators of multiple pathways plants, although systematic cataloging ginger has not yet been completed. Result .The study examined 31 members the gene family (ZoBBXs). Moreover, comprehensive analysis conducted on sequence features, conserved protein motifs, chromosome location, phylogenetic relationships, duplication events ZoBBXs. In terms structures, domains, ZoBBXs can be categorized into five categories. investigated expression patterns across different developmental stages under various abiotic stresses, such as ABA, cold, drought, heat, salt, utilizing RNA-seq data qRT-PCR analysis. The results indicated that ZoBBX#04, ZoBBX#11, ZoBBX#24, ZoBBX#27 may key flowering ginger, while ZoBBX#05, ZoBBX#17, ZoBBX#24 were identified significant contributors to stress response mechanisms. Conclusion A detailed ginger's presented this study, laying groundwork for further exploration potential roles ZoBBX growth, development, tolerance stresses.

Язык: Английский

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O papel das proteínas que contém domínio B-box no desenvolvimento vegetativo e reprodutivo do tomateiro

Опубликована: Июнь 10, 2024

Within the intricate network of molecular mechanisms governing plant development, BBX proteins emerge as crucial regulators, orchestrating various physiological processes in response to environmental cues.BBX proteins, named after their conserved B-box domain, constitute a diverse family transcription factors that exert regulatory functions through direct and indirect interaction with other components, including factors, chromatin modifiers, phytohormones.In recent years, study has garnered significant attention, particularly model plants like Arabidopsis thaliana, which were initially characterized light signaling factors.Further, genome-wide studies, gene also been identified species, from ornamental food crops.However, roles determining agronomical essential traits economically important crops, such tomato (Solanum lycopersicum L.), remain limited.Recently, by performing survey, our group 31 encoding genes tomato.A comprehensive mRNA profiling revealed six showed clear fruit ripening association: SlBBX16 (Solyc12g005750), SlBBX19 (Solyc01g110370), SlBBX20 (Solyc12g089240), SlBBX26 (Solyc10g006750), SlBBX28 (Solyc12g005660) SlBBX29 (Solyc02g079430).Interestingly, promoter regions these binding motifs for RIPENING INHIBITOR (SlRIN), master factor.In this context, project aimed characterize role SlBBX protein genes, whose profiles increase or decrease along chloroplast-chromoplast transition.Therefore, results work are organized three chapters: (I) PHYTOCHROME-and ripening-mediated transcriptional regulation genes; (II) Slbbx20 mutant phenotypic characterization; (III) Slbbx26 characterization.

Язык: Английский

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Chemical Constituents of Brassicaceae

Опубликована: Янв. 1, 2024

Язык: Английский

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