The complex transcriptional regulation of heat stress response in maize

Stress Biology, Journal Year: 2024, Volume and Issue: 4(1)

Published: April 26, 2024

As one of the most important food and feed crops worldwide, maize suffers much more tremendous damages under heat stress compared to other plants, which seriously inhibits plant growth reduces productivity. To mitigate heat-induced adapt high temperature environment, plants have evolved a series molecular mechanisms sense, respond temperatures stress. In this review, we summarized recent advances in regulations underlying sensing, response memory maize, especially focusing on several pathways signals complex transcriptional regulation ZmHSFs (Heat Shock Factors) response. addition, highlighted interactions between epigenetic factors coordinately regulating memory. Finally, laid out strategies systematically elucidate regulatory network response, discussed approaches for breeding future heat-tolerance maize.

Language: Английский

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Integrated analysis of transcriptome, sRNAome, and degradome involved in the drought-response of maize Zhengdan958

Open Life Sciences, Journal Year: 2025, Volume and Issue: 20(1)

Published: Jan. 1, 2025

Drought is a major abiotic stress in restricting the growth, development, and yield of maize. As significant epigenetic regulator, small RNA also functions connecting transcriptional post-transcriptional regulatory network. Further to help comprehending molecular mechanisms underlying drought adaptability tolerance maize, an integrated multi-omics analysis transcriptome, sRNAome, degradome was performed on seedling roots elite hybrid Zhengdan958 under stress. In this study, 2,911 genes, 32 conserved miRNAs, 12 novel miRNAs showed significantly differential expression Moreover, 6,340 target genes 445 were validated using sequencing, forming 281 miRNA-mRNA pairs control (CK) drought-stressed (DS) library. These mainly involved plant hormone signal transduction phenylpropanoid biosynthesis pathways. The revealed that five DEmiRNA-mRNA displayed negatively correlated patterns, which verified by qRT-PCR. Tissue-specific profile network miR528a/b-Zm00001d021850, miR408a/b-Zm00001d020794, miR164e-Zm00001d003414 might be essential root-specific response maize seedlings. worthwhile will promote functional characterization modules stress, potentially contribute drought-resistance breeding

Language: Английский

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Plant diversity as a sustainable strategy for mitigating biotic and abiotic stresses in tomato cultivation

Frontiers in Sustainable Food Systems, Journal Year: 2024, Volume and Issue: 8

Published: Feb. 6, 2024

Sustainable agriculture has become a global priority in response to increasing food demand and the challenges confronting agricultural production, such as biotic abiotic stresses. In this review, we delve into role of plant diversity mitigating these stressors within tomato cultivation. Our investigation reveals that most extensively studied companion species are Vicia villosa Roth, Coriandrum sativum L., Allium cepa while primary under scrutiny include nutrient deficiencies, aerial pests, soil-borne pathogenic diseases. Regarding cover crop system demonstrated its capacity provide essential nutrients directly indirectly plants. addressing pests pathogens, all cultivation systems exhibit contributions. Finally, assert incorporating agroecosystems can effectively counteract various types stressors. These benefits align with application agroecological principles development sustainable agroecosystems. Further assessments effects additional imperative. This should encompass identification their distribution, optimal quantities, enhance benefits. Ultimately, evaluations will aid formulation comprehensive guidelines facilitate selection utilization for long-term sustainability.

Language: Английский

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Odyssey of environmental and microbial interventions in maize crop improvement

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 9, 2025

Maize (Zea mays) is India's third-largest grain crop, serving as a primary food source for at least 30% of the population and sustaining 900 million impoverished people globally. The growing human has led to an increasing demand maize grains. However, cultivation faces significant challenges due variety environmental factors, including both biotic abiotic stresses. Abiotic stresses such salinity, extreme temperatures, drought, along with factors like bacterial, fungal, viral infections, have drastically reduced production quality worldwide. interaction between these complex; instance, stress can heighten plant's susceptibility pathogens, while overabundance pests exacerbate response stress. Given complexity interactions, comprehensive studies are crucial understanding how simultaneous presence affects crop productivity. Despite importance this issue, there lack data on combinations impact in key agricultural regions. This review focuses developing stress-tolerant varieties, which will be essential maintaining yields future. One promising approach involves use Plant Growth-Promoting Rhizobacteria (PGPR), soil bacteria that colonize rhizosphere interact plant tissues. Scientists increasingly exploring microbial strategies enhance maize's resistance Throughout process, insect microorganisms pose threats maize, diminishing quantity grain. Among various causing degradation, insects most prevalent, followed by fungal infections. also delves into latest advancements applying beneficial rhizobacteria across different agroecosystems, highlighting current trends offering insights future developments under normal conditions.

Language: Английский

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Foliar Application of γ-Polyglutamic Acid Enhances Growth, Yield, and Rhizosphere Microbiota of Summer Maize Under Varied Water Regimes

Agronomy, Journal Year: 2025, Volume and Issue: 15(3), P. 754 - 754

Published: March 20, 2025

Amidst escalating global water scarcity and the urgent need for sustainable agricultural practices, exploration of efficient eco-friendly aids has become paramount. This field experiment investigated effects foliar γ-polyglutamic acid (γ-PGA) application on summer maize under two irrigation levels (0 m3·ha−1 900 at bell-mouth stage) three γ-PGA spraying treatments. The results demonstrated that both significantly influenced yield various growth parameters, with notable interaction effects. Compared to control, single double applications increased by 33.3% 37.0%, respectively, while enhancing dry matter accumulation nutrient uptake. Foliar also altered rhizosphere microbial community composition, increasing abundances Proteobacteria Actinobacteria, as well beneficial bacteria such Arthrobacter, Sphingomonas, Streptomyces, Altererythrobacter. Additionally, it population Dung Saprotroph fungi, which are crop growth. These findings suggest can promote holds significant potential applications.

Language: Английский

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Biological Nano-Agrochemicals for Crop Production as an Emerging Way to Address Heat and Associated Stresses

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(15), P. 1253 - 1253

Published: July 26, 2024

Climate change is a global problem facing all aspects of the agricultural sector. Heat stress due to increasing atmospheric temperature one most common climate impacts on agriculture. has direct effects crop production, along with indirect through associated problems such as drought, salinity, and pathogenic stresses. Approaches reported be effective mitigate heat include nano-management. Nano-agrochemicals nanofertilizers nanopesticides are emerging approaches that have shown promise against stress, particularly biogenic nano-sources. Nanomaterials favorable for production their low toxicity eco-friendly action. This review focuses different stresses production. Nano-management crops under including application nanopesticides, discussed. The potential limitations these nano-agrochemicals reviewed. Potential nanotoxicity need more investigation at local, national, levels, well additional studies into soil, plant, microbial properties processes.

Language: Английский

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Indices to Identify Historical and Future Periods of Drought for the Maize Crop (Zea mays L.) in Central Mexico

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 460 - 460

Published: Feb. 13, 2025

Agricultural drought is a condition that threatens natural ecosystems, water security, and food security. The timely identification of an agricultural event essential to mitigating its effects. However, achieving reliable accurate assessment challenging due the interannual variability precipitation in region. Therefore, objective this study was identify months with during cycle maize crop (Zea mays L.) Atlacomulco Rural Development District (ARDD) as area using SPI SPEI indices their impact on each phenological stage. results show when analyzing historical period (1985–2017), ARDD region prone droughts duration one month. stages grain filling ripening were most vulnerable, since SPEI-1 quantify 25% 31% total occur those stages, respectively. Towards 2041–2080 horizon, MCG ACCESS-ESM1-5 SSP2-4.5 scenario identified occurrence dry periods 17% 20% by SPEI, respectively, while for SSP5-8.5, 22% number corresponded Greater recurrence will be observed future, specifically after year 2061, meaning increase frequency events region, causing difficult erratic productive conditions threatening sustainable development. it necessary take action mitigate effects climate change sector.

Language: Английский

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Development of a microwave sensor for the non-invasive detection of plant responses to water stress: A practical application on maize (Zea mays L.)

Biosystems Engineering, Journal Year: 2024, Volume and Issue: 246, P. 191 - 203

Published: Aug. 14, 2024

Language: Английский

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Breeding Maize Hybrids with Improved Drought Tolerance Using Genetic Transformation

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(19), P. 10630 - 10630

Published: Oct. 2, 2024

Drought is considered the main agricultural menace, limiting successful realization of land potential, and thereby reducing crop productivity worldwide. Therefore, breeding maize hybrids with improved drought tolerance via genetic manipulation necessary. Herein, multiple bud clumps elite inbred lines, DH4866, Qi319, Y478 DH9938, widely used in China, were transformed

Language: Английский

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Trait-Based Approaches to Improve Nutrient Uptake Efficiency in Crops

Published: Jan. 1, 2024

In the face of global population growth and changing climatic conditions, ensuring food security remains a paramount challenge. Meeting rising demand for while minimizing environmental footprint agriculture calls innovative strategies to enhance crop productivity. One promising approach is improve nutrient uptake efficiency in crops through trait-based interventions. Trait-based approaches leverage genetic diversity within species identify harness specific traits that efficiency. These may include root architecture, transporters, symbiotic associations with beneficial microbes. By understanding basis these traits, scientists breeders can develop varieties improved nutrient-acquisition capabilities. key trait has garnered significant attention architecture. Root such as length, density, branching patterns play critical role acquisition from soil. Genetic modification or breeding desirable lead are better equipped explore larger soil volumes, access nutrients efficiently, tolerate nutrient-stressed conditions. Additionally, transporters vital components Research identified genes responsible essential like nitrogen, phosphorus, micronutrients. Modifying selecting enhanced transporter activity utilization, reducing need excessive fertilization. Moreover, harnessing power microorganisms, mycorrhizal fungi nitrogen-fixing bacteria, presents another avenue enhancement uptake. acquisition, particularly nutrient-poor soils, reduce impact chemical fertilizers. While hold immense promise, they not without challenges. targeting related researchers thrive nutrient-limited environments. However, successful implementation requires collaboration among scientists, breeders, policymakers, farmers address challenges ensure equitable benefits improvement.

Language: Английский

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