“Genome-wide identification of bZIP gene family in Pearl millet and transcriptional profiling under abiotic stress, phytohormonal treatments; and functional characterization of PgbZIP9”

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Feb. 26, 2024

Abiotic stresses are major constraints in crop production, and accountable for more than half of the total loss. Plants overcome these environmental using coordinated activities transcription factors phytohormones. Pearl millet an important C4 cereal plant having high nutritional value climate resilient features is grown marginal lands Africa South-East Asia including India. Among several factors, basic leucine zipper (bZIP) TF family associated with diverse biological functions plants. In this study, we have identified 98 bZIP members (PgbZIP) pearl millet. Phylogenetic analysis divided PgbZIP genes into twelve groups (A-I, S, U X). Motif has shown that all proteins possess conserved domains exon-intron organization revealed structural among genes. Cis-element analysis, RNA-seq data real-time expression suggested potential role selected growth/development abiotic stress responses Expression profiling PgbZIPs under various phytohormones (ABA, SA MeJA) treatment showed differential patterns Further, PgbZIP9, a homolog AtABI5 was found to localize nucleus modulate gene stresses. Our present findings provide better understanding lay good foundation further functional characterization multi-stress tolerant genes, which could become efficient tools improvement.

Language: Английский

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Regulatory Dynamics of Plant Hormones and Transcription Factors under Salt Stress

Biology, Journal Year: 2024, Volume and Issue: 13(9), P. 673 - 673

Published: Aug. 29, 2024

The negative impacts of soil salinization on ion homeostasis provide a significant global barrier to agricultural production and development. Plant physiology biochemistry are severely affected by primary secondary NaCl stress impacts, which damage cellular integrity, impair water uptake, trigger physiological drought. Determining how transcriptional factors (TFs) hormone networks regulated in plants response salt is necessary for developing crops that tolerate salt. This study investigates the complex mechanisms several TF families influence plant responses stress, involving AP2/ERF, bZIP, NAC, MYB, WRKY. It demonstrates these transcription help respond detrimental effects salinity modulating gene expression through including signaling, osmotic pathway activation, homeostasis. Additionally, it explores hormonal imbalances triggered entail interactions among phytohormones like jasmonic acid (JA), salicylic (SA), abscisic (ABA) within regulatory networks. review highlights role key salt-stress response, their interaction with hormones crucial genome-edited can enhance sustainability address food security challenges.

Language: Английский

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The Effects of Graphene-Family Nanomaterials on Plant Growth: A Review

Nanomaterials, Journal Year: 2022, Volume and Issue: 12(6), P. 936 - 936

Published: March 12, 2022

Numerous reports of graphene-family nanomaterials (GFNs) promoting plant growth have opened up a wide range promising potential applications in agroforestry. However, several toxicity studies raised growing concerns about the biosafety GFNs. Although these provided clues role GFNs from different perspectives (such as physiology, biochemistry, cytology, and molecular biology), mechanisms by which affect remain poorly understood. In particular, systematic collection data regarding differentially expressed genes response to GFN treatment has not been conducted. We summarize here fate biological effects plants. propose that soil environments may be conducive positive but detrimental absorption Alterations cytological structure, gene expression are discussed. Coincidentally, many changes morphological biochemical scales, caused treatment, such affecting root growth, disrupting cell membrane altering antioxidant systems hormone concentrations, can all mapped level. This review provides comprehensive understanding on promote their safe efficient use.

Language: Английский

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Asymmetric cell division in plant development

Journal of Integrative Plant Biology, Journal Year: 2023, Volume and Issue: 65(2), P. 343 - 370

Published: Jan. 7, 2023

Abstract Asymmetric cell division (ACD) is a fundamental process that generates new types during development in eukaryotic species. In plant development, post‐embryonic organogenesis driven by ACD universal and more important than animals, which organ pattern preset embryogenesis. Thus, provides powerful system to study molecular mechanisms underlying ACD. During the past decade, tremendous progress has been made our understanding of key components involved this plants. Here, we present an overview how determined regulated multiple biological processes compare their conservation specificity among different model systems. We also summarize roles phytohormones regulation Finally, conclude with overarching paradigms principles govern consider technologies can be exploited fill knowledge gaps make advances field.

Language: Английский

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Emerging roles of phase separation in plant transcription and chromatin organization

Current Opinion in Plant Biology, Journal Year: 2023, Volume and Issue: 75, P. 102387 - 102387

Published: June 11, 2023

Language: Английский

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Genome-Wide Identification and Transcriptional Analysis of AP2/ERF Gene Family in Pearl Millet (Pennisetum glaucum)

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(5), P. 2470 - 2470

Published: Feb. 20, 2024

The apetala2/ethylene response factor (AP2/ERF) gene family plays a crucial role in regulating plant growth and development responding to different abiotic stresses (e.g., drought, heat, cold, salinity). However, the knowledge of ERF pearl millet remains limited. Here, total 167 high-confidence PgERF genes are identified divided into five subgroups based on gene-conserved structure phylogenetic analysis. Forty-one pairs segmental duplication found using collinear Nucleotide substitution analysis reveals these duplicated under positive purification, indicating they actively natural selection. Comprehensive transcriptomic that genesare preferentially expressed imbibed seeds stem (tilling stage) respond salt stress. Prediction cis-regulatory element by PlantCARE program indicates involved responses environmental stimuli. Using reverse transcription quantitative real-time PCR (RT-qPCR), expression profiles eleven selected monitored various tissues during stresses. Transcript levels each exhibit significant changes stress treatments. Notably, PgERF7 is only candidate can be induced all adverse conditions. Furthermore, four (i.e., PgERF22, PgERF37, PgERF88, PgERF155) shown ABA-dependent signaling pathway. These results provide useful bioinformatic transcriptional information for understanding roles adaptation climate change.

Language: Английский

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Drought Stress Impacts and the Role of Endophytic Fungi Combating Abiotic Stress on Wheat

Bulletin of Faculty of Science Zagazig University, Journal Year: 2024, Volume and Issue: 2023(4), P. 93 - 108

Published: Jan. 1, 2024

Wheat is a sizable grain crop that grown all over the world. However, under stress of drought, wheat productivity declines dramatically in many growing places around yields significantly decrease due to water shortage during crucial period growth. growth, from germination through maturity, impacted by drought every way. The impairs variety plant metabolic functions. There reduction both photosynthesis and amount chlorophyll leaf. In addition having extra effects on number physiological systems, increased generation reactive oxygen species (ROS) damages RNA DNA oxidative deterioration. This detrimental effect dryness can be reversed endophytic fungi (EF). use EF improve development drought-prone environments modifying hormonal balance, maintaining nutritional status, producing growth regulators. function influences biochemical characteristics favorably, increasing leaves, content, photosynthetic pigments, ascorbic acid. reduces boosting antioxidant defense mechanisms production promote sustainable agriculture. Different consequences are covered this paper, as well how consortium endophytes may able enhance wheat's ability adapt drought.

Language: Английский

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Auxin regulates bulbil initiation by mediating sucrose metabolism in Lilium lancifolium

Horticulture Research, Journal Year: 2024, Volume and Issue: 11(4)

Published: Feb. 23, 2024

Lily bulbils, which serve as advantageous axillary organs for vegetative propagation, have not been extensively studied in terms of the mechanism bulbil initiation. The functions auxin and sucrose metabolism implicated organ development, but their relationship regulating initiation remains unclear. In this study, exogenous indole-3-acetic acid (IAA) treatment increased endogenous levels at leaf axils significantly decreased number, whereas with polar transport inhibitor N-1-naphthylphthalamic (NPA), resulted a low concentration axils, stimulated number. A level caused by NPA spraying or silencing biosynthesis genes YUCCA FLAVIN MONOOXYGENASE-LIKE 6 (LlYUC6) TRYPTOPHAN AMINOTRANSFERASERELATED 1 (LlTAR1) facilitated activating expression SUCROSE SYNTHASES (LlSusy1) CELL WALL INVERTASE 2 (LlCWIN2), resulting enhanced Silencing LlSusy1 LlCWIN2 hindered Moreover, transcription factor BASIC HELIX-LOOP-HELIX 35 (LlbHLH35) directly bound promoter LlSusy1, LlCWIN2, activated its response to content, bridging gap between metabolism. conclusion, our results reveal that an LlbHLH35-LlSusy1 module mediates auxin-regulated during

Language: Английский

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The MYB transcription factor OsMYBxoc1 regulates resistance to Xoc by directly repressing transcription of the iron transport gene OsNRAMP5 in rice

Plant Communications, Journal Year: 2024, Volume and Issue: 5(6), P. 100859 - 100859

Published: March 5, 2024

Bacterial leaf streak caused by Xanthomonas oryzae pv. oryzicola (Xoc) is a continuous threat to rice cultivation, leading substantial yield losses with socioeconomic implications. Iron ions are essential mineral nutrients for plant growth, but little information available on how they influence mechanisms of immunity against Xoc. Here, we investigated the role myeloblastosis-related (MYB) transcriptional repressor OsMYBxoc1 in modulation resistance through control iron ion transport. Overexpression significantly increased resistance, whereas RNA-interference lines and knockout mutants showed opposite result. Suppression expression dampened immune response induced pathogen-associated molecular patterns. We demonstrated that binds specifically OsNRAMP5 promoter represses transcription OsNRAMP5. OsNRAMP5, negative regulator bacterial streak, possesses metal transport activity, inhibition content rice. Activity ion-dependent H

Language: Английский

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From stress to resilience: Unraveling the molecular mechanisms of cadmium toxicity, detoxification and tolerance in plants

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176462 - 176462

Published: Sept. 25, 2024

Language: Английский

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