Appropriate induction of TOC1 ensures optimal MYB44 expression in ABA signaling and stress response in Arabidopsis

Plant Cell & Environment, Год журнала: 2024, Номер 47(8), С. 3046 - 3062

Опубликована: Апрель 23, 2024

Abstract Plants possess the remarkable ability to integrate circadian clock with various signalling pathways, enabling them quickly detect and react both external internal stress signals. However, interplay between biological processes in orchestrating responses environmental stresses remains poorly understood. TOC1 , a core component of plant clock, plays vital role maintaining rhythmicity participating defences. Here, our study reveals direct interaction promoter region MYB44 key gene involved defence. rhythmically represses expression, thereby ensuring elevated expression at dawn help coping lowest temperatures during diurnal cycles. Additionally, can be induced by cold an Abscisic acid (ABA)‐dependent independent manner. demonstrates rapid induction response lower compared ABA treatment, suggesting timely flexible regulation TOC1‐MYB44 regulatory module proper diverse balance normal physiological energy‐consuming responses. Our elucidates effectively modulating providing insights into network connecting signalling, stress‐responsive genes.

Язык: Английский

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The biological concept of stress revisited: relations of stress and memory of plants as a matter of space–time

Theoretical and Experimental Plant Physiology, Год журнала: 2022, Номер 34(2), С. 239 - 264

Опубликована: Май 2, 2022

Язык: Английский

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IbMYB308, a Sweet Potato R2R3-MYB Gene, Improves Salt Stress Tolerance in Transgenic Tobacco

Genes, Год журнала: 2022, Номер 13(8), С. 1476 - 1476

Опубликована: Авг. 18, 2022

The MYB (v-myb avian myeloblastosis viral oncogene homolog) transcription factor family plays an important role in plant growth, development, and response to biotic abiotic stresses. However, the gene functions of factors sweet potato (Ipomoea batatas (L.) Lam) have not been elucidated. In this study, gene, IbMYB308, was identified isolated from potato. Multiple sequence alignment showed that IbMYB308 is a typical R2R3-MYB factor. Further, quantitative real-time PCR (qRT-PCR) analysis revealed expressed root, stem, and, especially, leaf tissues. Moreover, it had tissue-specific profile. experiment also expression induced by different stresses (20% PEG-6000, 200 mM NaCl, 20% H2O2). After NaCl treatment, several stress-related genes (SOD, POD, APX, P5CS) upregulation transgenic plants, CAT activity, POD proline content, protein content tobacco increased, while MDA decreased. conclusion, study demonstrated could improve salt stress tolerance tobacco. These findings lay foundation for future studies on suggest potentially be used as positive breeding plants.

Язык: Английский

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Unveiling the dynamic relationship of viruses and/or symbiotic bacteria with plant resilience in abiotic stress

Stress Biology, Год журнала: 2024, Номер 4(1)

Опубликована: Фев. 5, 2024

In the ecosphere, plants interact with environmental biotic and abiotic partners, where unbalanced interactions can induce unfavourable stress conditions. Abiotic factors (temperature, water, salt) are primarily required for healthy survival, any change in their availability is reflected as a signal. certain cases, presence of infectious pathogens such viruses, bacteria, fungi, protozoa, nematodes, insects also create conditions plants, leading to emergence disease or deficiency symptoms. While these symptoms often typical stress, however, there instances they intensify under specific Here, we summarize viral during understand how associations linked together pathogenesis. Secondly, focus given beneficial effects root-associated symbiotic bacteria fulfilling basic needs normal well The modulations plant functional proteins, occurrence/cross-talk, pathogen (virus) symbiont (bacteria) molecules discussed. Furthermore, have highlighted biochemical systematic adaptations that develop due bacterial symbiosis encounter hallmarks. Lastly, directions provided towards exploring potential rhizospheric maintain plant-microbes ecosystem manage achieve better trait health horticulture crops.

Язык: Английский

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Convergent and/or parallel evolution of RNA‐binding proteins in angiosperms after polyploidization

New Phytologist, Год журнала: 2024, Номер 242(3), С. 1377 - 1393

Опубликована: Март 4, 2024

Increasing studies suggest that the biased retention of stress-related transcription factors (TFs) after whole-genome duplications (WGDs) could rewire gene transcriptional networks, facilitating plant adaptation to challenging environments. However, role posttranscriptional (e.g. RNA-binding proteins, RBPs) following WGDs has been largely ignored. Uncovering thousands RBPs in 21 representative angiosperm species, we integrate genomic, transcriptomic, regulatomic, and paleotemperature datasets unravel their evolutionary trajectories roles adapting We reveal functional enrichments RBP genes stress responses identify convergent across diverse angiosperms from independent WGDs, coinciding with global cooling periods. Numerous duplicates derived are then identified as cold-induced. A significant overlap 29 orthogroups between WGD-derived cold-induced highlights a correlation WGD cold stress. Notably, unveil an orthogroup (Glycine-rich Proteins 7/8, GRP7/8) relevant TF (CCA1/LHY, RVE4/8, CBF2/4, etc.), co-retained different post-WGDs. Finally, illustrate rewiring circadian cold-regulatory networks at both levels during cooling. Altogether, underline adaptive evolution cooling, improving our understanding plants surviving periods environmental turmoil.

Язык: Английский

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Genome-wide circadian gating of a cold temperature response in bread wheat

PLoS Genetics, Год журнала: 2023, Номер 19(9), С. e1010947 - e1010947

Опубликована: Сен. 18, 2023

Circadian rhythms coordinate the responses of organisms with their daily fluctuating environments, by establishing a temporal program gene expression. This schedules aspects metabolism, physiology, development and behaviour according to time day. regulation in plants is extremely pervasive, important because it underpins both productivity seasonal reproduction. extends control environmental through regulatory process known as circadian gating. gating whereby clock regulates response an cue, such that magnitude identical cue varies day cue. Here, we show there genome-wide cold temperatures plants. By using bread wheat experimental model, establish crucial programs expression underlie crop major socioeconomic importance. Furthermore, identify temperature are distributed unevenly across three subgenomes, which might reflect geographical origins ancestors modern wheat.

Язык: Английский

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Genomic signatures of SnRKs highlighted conserved evolution within orchids and stress responses through ABA signaling in the Cymbidium ensifolium

BMC Plant Biology, Год журнала: 2025, Номер 25(1)

Опубликована: Март 3, 2025

Sucrose non-fermenting 1-related protein kinases (SnRKs) are crucial for modulating plant responses to abiotic stresses, linking metabolism with stress signaling pathways. Investigating the roles and of SnRKs in plants paves way developing stress-tolerant strategies orchid species. Here, 362 SnRK members were identified from nine current genomes, highlighting conservation these genes evolution. Among these, 33 CeSnRKs found across 20 chromosomes C. ensifolium genome. Multiple duplication events increased complexity during independent Moreover, distinct functional domains beyond kinase domain differentiated subfamilies. These multi-copy existed tissue specific expressions falling into 6 main trends, especially CeSnRK1, CeCIPK9, CeCIPK23 displayed a strict floral expression. ABA-related elements enriched promoters CeSnRKs, stress-related miRNA binding sites on partial CeSnRKs. Consequently, most exhibited up-regulated expression ABA treatment. Several genes, such as CeSnRK2.1 CeCIPK28 involved growth development at different times various tissues. The up-regulation SnRK2.1, along high SnRK1 CIPK27 under drought stress, differential patterns cold underscore involvement CeSnRK responses. Additionally, diverse interactions proteins highlighted multifaceted network.These findings offer valuable insights future characterization formation adaptive evolution orchids.

Язык: Английский

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Antioxidants by nature: an ancient feature at the heart of flavonoids' multifunctionality

New Phytologist, Год журнала: 2024, Номер unknown

Опубликована: Окт. 21, 2024

Язык: Английский

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The Pyrus sinkiangensis Yu PsLEA4 Gene Enhances the Cold Resistance of Solanum lycopersicum

Plants, Год журнала: 2025, Номер 14(2), С. 180 - 180

Опубликована: Янв. 10, 2025

Plants have large amounts of the late embryogenesis abundant protein (LEA) family proteins, which is involved in osmotic regulation. The Korla Pear (Pyrus sinkiangensis Yu) an uncommon pear species that thrives Xinjiang and can survive below-freezing conditions. We found PsLEA4 gene was more expressed after cold treatment by looking at transcriptome data Pear. In order to evaluate biological function under low-temperature stress its potential for use agricultural breeding, we cloned from Pear, made a plant overexpression vector, transformed it into tomato via Agrobacterium transformation. When exposed low temperatures, regulate proline metabolism antioxidant enzyme activity tomatoes compared wild tomatoes. Because this, transgenic are resilient temperatures produce than their counterparts. Thus, expressing has multiple advantages: (1) Improving frost resistance reducing damage. (2) Increasing crop yield. Therefore, this study provides theoretical basis role plants’ resilience as well application breeding.

Язык: Английский

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Salinity survival: molecular mechanisms and adaptive strategies in plants

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Фев. 28, 2025

Soil salinity is a significant environmental challenge that threatens plant growth and development, adversely affecting global food crop production. This underscores the critical need to elucidate molecular mechanisms underlying salt tolerance, which has profound implications for agricultural advancement. Recent progress in tolerance greatly improved our understanding of responses stress precision design breeding as an effective strategy developing new salt-tolerant varieties. review focuses on model species Arabidopsis thaliana important crops, namely, wheat ( Triticum aestivum ), maize Zea mays rice Oryza sativa ). It summarizes current knowledge emphasizing key aspects such perception response stress, Na + transport, compartmentalization clearance, changes reactive oxygen induced by regulation stem cell development under conditions. The might provide valuable information adaptation stress.

Язык: Английский

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