Rhizobacteria genome sequences: platform for defining mechanisms for sustainable growth of food crops under drought stress

Discover Plants., Год журнала: 2025, Номер 2(1)

Опубликована: Янв. 29, 2025

Язык: Английский

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A newly isolated Bacillus pumilus strain SH-9 modulates response to drought stress in soybean via endogenous phytohormones and gene expression (Daegu, South Korea)

Plant Stress, Год журнала: 2023, Номер 10, С. 100279 - 100279

Опубликована: Ноя. 2, 2023

Drought stress hampers plant growth and productivity. Some microorganisms mitigate in plants; however, the molecular mechanism by which they interact with plants mitigating remains unknown. This study aimed to determine growth–promoting rhizobacteria modulate drought soybean. Results indicated that B. pumilus SH-9 (SH-9) produced indole acetic acid siderophore, had capacity for phosphate solubilization. The test polyethylene glycol 6000 (PEG) tolerance, showed could withstand high PEG concentration (up 30%). isolate was identified a strain using 16s ribosomal DNA gene sequence. Inoculation of soybeans enhanced soybean biomass 20%, even under stress. due reduction endogenous phytohormone (abscisic acid) upregulation antioxidant defense system (SOD, POD, APX, GSH) SH-9. Furthermore, transcription factors GmDREB2, GmbZIP1, GmNCED3 were involved. also improved physio-morphological characteristics such as biomass, chlorophyll, seedling length, relative water contents stressed plant. Overall, findings this enhances promoting solubilization, exopolysaccharides. We, therefore, conclude is drought-tolerant variant can improve via modulation expression gene, profile.

Язык: Английский

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Recent progress on the microbial mitigation of heavy metal stress in soybean: overview and implications

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Июнь 12, 2023

Plants are adapted to defend themselves through programming, reprogramming, and stress tolerance against numerous environmental stresses, including heavy metal toxicity. Heavy is a kind of abiotic that continuously reduces various crops’ productivity, soybeans. Beneficial microbes play an essential role in improving plant productivity as well mitigating stress. The simultaneous effect from metals on soybeans rarely explored. Moreover, reducing contamination soybean seeds sustainable approach extremely needed. present article describes the initiation mediated by inoculation with endophytes growth-promoting rhizobacteria, identification transduction pathways via sensing annotation, contemporary changes molecular genomics. results suggest beneficial plays significant rescuing under They create dynamic, complex interaction plants cascade called plant–microbial interaction. It enhances production phytohormones, gene expression, secondary metabolites. Overall, microbial mediating protection responses produced fluctuating climate.

Язык: Английский

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Mitigating drought stress in wheat plants (Triticum Aestivum L.) through grain priming in aqueous extract of spirulina platensis

BMC Plant Biology, Год журнала: 2024, Номер 24(1)

Опубликована: Апрель 2, 2024

Abstract Background The study focuses on the global challenge of drought stress, which significantly impedes wheat production, a cornerstone food security. Drought stress disrupts cellular and physiological processes in wheat, leading to substantial yield losses, especially arid semi-arid regions. research investigates use Spirulina platensis aqueous extract (SPAE) as biostimulant enhance resistance two Egyptian cultivars, Sakha 95 (drought-tolerant) Shandawel 1 (drought-sensitive). Each cultivar’s grains were divided into four treatments: Cont, DS, SPAE-Cont, SPAE + DS. Cont DS presoaked distilled water for 18 h while SPAE-Cont 10% SPAE, then all treatments cultivated 96 days semi-field experiment. During heading stage (45 days: 66 days), treatments, not irrigated. In contrast, irrigated during entire experiment period. At end stage, agronomy, pigment fractions, gas exchange, carbohydrate content parameters flag leaf assessed. Also, at harvest attributes biochemical aspects yielded (total carbohydrates proteins) evaluated. Results demonstrated that enhanced growth vigor, photosynthetic rate, components both cultivars under standard conditions. Specifically, increased rate by up 53.4%, number spikes 76.5%, economic 190% control 153% drought-stressed pre-soaked SPAE. Leaf exchange parameters, positively influenced suggesting their effectiveness mitigating adverse effects, improving crop performance. Conclusion application S. appears ameliorate effects enhancing metabolism, productivity studied. This indicates potential an eco-friendly resilience, nutrition, various environmental challenges, thus contributing

Язык: Английский

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Harnessing Beneficial Microbes for Drought Tolerance: A Review of Ecological and Agricultural Innovations

Agriculture, Год журнала: 2024, Номер 14(12), С. 2228 - 2228

Опубликована: Дек. 5, 2024

Drought is an increasingly critical global challenge, significantly impacting agricultural productivity, food security, and ecosystem stability. As climate change intensifies the frequency severity of drought events, innovative strategies are essential to enhance plant resilience sustain systems. This review explores vital role beneficial microbes in conferring tolerance, focusing on Plant Growth-Promoting Rhizobacteria (PGPR), mycorrhizal fungi, endophytes, actinomycetes, cyanobacteria. These microorganisms mitigate stress through diverse mechanisms, including osmotic adjustment, enhancement root architecture, modulation phytohormones, induction antioxidant defenses, regulation stress-responsive gene expression. Ecological innovations leveraging these have demonstrated significant potential bolstering resilience. Strategies such as soil microbiome engineering, bioaugmentation, integration microbial synergies within pest management frameworks sustainability. Additionally, advancements practices, seed coating, amendments, development consortia, precision agriculture technologies, validated effectiveness scalability interventions farming Despite promising advancements, several challenges hinder widespread adoption solutions. Environmental variability can affect performance, necessitating robust adaptable strains. Scale-up commercialization hurdles, economic constraints, regulatory safety considerations also pose barriers. Furthermore, complex interactions between microbes, plants, their environments require a deeper understanding optimize benefits consistently. Future research should focus integrating cutting-edge technologies genomics, synthetic biology, refine interventions. Collaborative efforts among academia, industry, government bridge gap practical implementation. By addressing harnessing innovations, it possible develop resilient sustainable systems capable thriving water-scarce world.

Язык: Английский

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Symbiotic Synergy: Unveiling Plant-Microbe Interactions in Stress Adaptation

Deleted Journal, Год журнала: 2024, Номер 77(1)

Опубликована: Дек. 20, 2024

Amidst escalating climate challenges, understanding microbe-mediated plant growth regulation and stress resilience is pivotal for sustainable agriculture. Non-pathogenic microbes, which reside in the phyllosphere, rhizosphere, as endophytes or epiphytes, play crucial roles enabling plants to withstand climate-induced stresses such extreme temperatures, drought, salinity, shifting pathogen dynamics. These microbial symbionts enhance nutrient availability, alter physiological responses, contribute significantly adaptive metabolism health. This review delves into multifaceted interactions between focusing on biochemical enzymatic exchanges that govern immune responses defense signaling under environmental stresses. Recent research highlights plant-associated microbes a 'second functional genome,' diverse structure function, essential resilience. We critically examine contributions alleviating abiotic stressors, highlighting factors diversity, ecosystem compatibility, role of synthetic consortia climate-adapted The emergence novel pathogenic strains due fluctuations mitigating these threats are also discussed. Furthermore, we assess potential axenic cultures enhancing fluctuating environments, while acknowledging gap controlled lab findings broader field applications. Concluding with integrating multi-omic approaches, this underscores importance unraveling complex plant-microbe develop strategies supporting resilient climate-adaptive agricultural systems.

Язык: Английский

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Recent Advances in Biochemical Reprogramming Network Under Drought Stress in Soybean

Journal of soil science and plant nutrition, Год журнала: 2024, Номер 24(2), С. 1692 - 1703

Опубликована: Март 18, 2024

Язык: Английский

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Seed Bio-priming of wheat with a novel bacterial strain to modulate drought stress in Daegu, South Korea

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Апрель 27, 2023

Wheat is one of the major cereal crop grown food worldwide and, therefore, plays has a key role in alleviating global hunger crisis. The effects drought stress can reduces yields by up to 50% globally. use drought-tolerant bacteria for biopriming improve countering negative on plants. Seed reinforce cellular defense responses stresses via memory mechanism, that its activates antioxidant system and induces phytohormone production. In present study, bacterial strains were isolated from rhizospheric soil taken around Artemisia plant at Pohang Beach, located near Daegu, South Korea Republic Korea. Seventy-three isolates screened their growth-promoting attributes biochemical characteristics. Among them, strain SH-8 was selected preferred based traits, which are as follows: abscisic acid (ABA) concentration = 1.08 ± 0.05 ng/mL, phosphate-solubilizing index 4.14 0.30, sucrose production 0.61 0.13 mg/mL. novel demonstrated high tolerance oxidative stress. analysis also showed contained significantly higher levels catalase (CAT), superoxide dismutase (SOD), ascorbic peroxidase (APX). study quantified determined wheat (Triticum aestivum) seeds with SH-8. highly effective enhancing bioprimed seeds; germination potential (GP) increased 20% 60%, respectively, compared those control group. lowest level impact caused highest potential, seed vigor (SVI), energy (GE) (90%, 2160, 80%, respectively), recorded These results show enhances 20%. Our suggests bacterium (gene accession number OM535901) valuable biostimulant improves plants be used biofertilizer under conditions.

Язык: Английский

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Phytohormonal modulation of the drought stress in soybean: outlook, research progress, and cross-talk

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Окт. 20, 2023

Phytohormones play vital roles in stress modulation and enhancing the growth of plants. They interact with one another to produce programmed signaling responses by regulating gene expression. Environmental stress, including drought hampers food energy security. Drought is abiotic that negatively affects productivity crops. Abscisic acid (ABA) acts as a prime controller during an acute transient response leads stomatal closure. Under long-term conditions, ABA interacts other hormones, such jasmonic (JA), gibberellins (GAs), salicylic (SA), brassinosteroids (BRs), promote closure genetic Regarding antagonistic approaches, cytokinins (CK) auxins (IAA) regulate opening. Exogenous application phytohormone enhances tolerance soybean. Thus, phytohormone-producing microbes have received considerable attention from researchers owing their ability enhance drought-stress biological processes The present study was conducted summarize role phytohormones (exogenous endogenous) corresponding model plant A total n=137 relevant studies were collected reviewed using different research databases.

Язык: Английский

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Juvenile Plant–Microbe Interactions Modulate the Adaptation and Response of Forest Seedlings to Rapid Climate Change

Plants, Год журнала: 2024, Номер 13(2), С. 175 - 175

Опубликована: Янв. 9, 2024

The negative impacts of climate change on native forest ecosystems have created challenging conditions for the sustainability natural regeneration. These challenges arise primarily from abiotic stresses that affect early stages tree development. While there is extensive evidence diversity juvenile microbial symbioses in agricultural and fruit crops, a notable lack reports plants. This review aims to summarize critical studies conducted plant-microbe interactions plants highlight main benefits beneficial microorganisms overcoming environmental such as drought, high low temperatures, metal(loid) toxicity, nutrient deficiency, salinity. reviewed consistently demonstrated positive effects plant-microbiota highlighted potential attributes improve plantlet In addition, this discusses managing symbiosis context restoration, including its impact plant responses phytopathogens, promotion uptake, facilitation seedling adaptation, resource exchange through shared hyphal networks, stimulation soil communities, modulation gene protein expression enhance adaptation adverse conditions.

Язык: Английский

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