Drought and salt stress mitigation in crop plants using stress-tolerant auxin-producing endophytic bacteria: a futuristic approach towards sustainable agriculture

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

Published: July 2, 2024

Abiotic stresses, especially drought stress and salt in crop plants are accelerating due to climate change. The combined impact of is anticipated lead the loss up 50% arable land globally, resulting diminished growth substantial yield losses threatening food security. Addressing challenges, agriculture through sustainable practices emerges as a potential solution achieve Zero Hunger, one development goals set by IUCN. Plants deploy myriad mechanisms effectively address with phytohormones playing pivotal roles crucial signaling molecules for tolerance. phytohormone auxin, particularly indole acetic acid (IAA) paramount regulator integral numerous aspects plant development. During both conditions, auxin plays tolerance, but stress-induced processes decreased levels endogenous free plant, leading an urgent need production. With aim augment this deficiency, several researchers have extensively investigated production, IAA plant-associated microorganisms, including endophytic bacteria. These bacteria been introduced into various subjected or isolates promoting identified. However, post-identification, essential studies on translational research advance these from laboratory field lacking. This review aims offer overview tolerant auxin-producing bacterial while identifying gaps that be fulfilled utilize knowledge formulation crop-specific stress-specific endophyte bioinoculants cope imbalance occurring during conditions.

Language: Английский

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Rhizosphere Microbiomes Mediating Abiotic Stress Mitigation for Improved Plant Nutrition

Ecologies, Journal Year: 2024, Volume and Issue: 5(3), P. 375 - 401

Published: July 27, 2024

The extreme conditions linked with abiotic stresses have greatly affected soil and plant health. diverse biochemical activities occurring in the environment been attributed to shaping dynamics of plant–soil microbiomes by contributing microbial lifestyles enhancing functional properties boost tolerance abiotic-induced stresses. Soil play crucial roles nutrition stress management through mechanisms. With current insights into use engineered microbes as single or combined inoculants, their has contributed fitness stability under different environmental activating defense mechanisms, enzyme production (lowering free radicals resulting oxidative stress), protein regulation, growth factors. detection certain genes involved factors can underline functions mitigating stress. Hence, projections for sustainable eco-friendly agriculture possible exploration beneficial rhizosphere manage effect on remain critical points discussion recently, prospects ensuring food security. Therefore, this review focuses impacts mitigation nutrition.

Language: Английский

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Bacterial Endophytes and Their Contributions to Alleviating Drought and Salinity Stresses in Wheat: A Systematic Review of Physiological Mechanisms

Agriculture, Journal Year: 2024, Volume and Issue: 14(5), P. 769 - 769

Published: May 16, 2024

Drought and salinity stresses significantly threaten global wheat productivity, limiting growth reducing yields, thus endangering food security worldwide. These disrupt physiological processes, impair photosynthesis, hinder optimal yield by diminishing water uptake, causing osmotic stress, ion toxicity, oxidative stress. In response, various mitigation strategies have been explored, including breeding for stress-tolerant cultivars, improved irrigation techniques, the application of exogenous osmoprotectants soil amendments. Among these strategies, emergence rhizospheric endophytic growth-promoting microorganisms has attracted significant attention. Therefore, a systematic review was undertaken to illustrate role bacteria in enhancing tolerance drought stresses. This analyzes mechanisms research trends, identifies gaps, discusses implications sustainable agriculture. An analysis literature related conducted using databases major publishers from 2004 2023. The explores their mechanisms, such as phytohormone production stress-responsive gene induction, emphasizing contribution plant stress resilience. current trends indicate growing interest utilizing mitigate cultivation, with studies focusing on understanding responses interactions plants. Future should concentrate elucidating host multiple stressors, well aspects like mechanism action, lifestyle, transmission pathways. Overall, offer promising avenues agricultural practices, aiding crop resilience amid environmental challenges.

Language: Английский

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Effect of bacillus strain and Fe-modified biochar on lead (Pb) bioaccumulation and oxidative stress in wheat (Triticum aestivum L.) grown in Pb contaminated soil

South African Journal of Botany, Journal Year: 2024, Volume and Issue: 172, P. 720 - 735

Published: Aug. 10, 2024

Language: Английский

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Effect of intra- and inter-specific plant interactions on the rhizosphere microbiome of a single target plant at different densities

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(1), P. e0316676 - e0316676

Published: Jan. 27, 2025

Root and rhizosphere studies often focus on analyzing single-plant microbiomes, with the literature containing minimum empirical information about shared microbiome of multiple plants. Here, individual plants was analyzed in a microcosm study different combinations densities (1–3 plants, 24 48 plants) cover crops: Medicago sativa , Brassica sp., Fescue sp. Rhizobacterial beta diversity reduced by increasing plant density for all mixtures. Interestingly, had significant influence over while found to be less important factor since it did not have change. Regardless neighbor identity or density, low number rhizobacteria were strongly associated each target species. Nonetheless, few bacterial taxa shown conditional associations such as being enriched within only high densities, which may alleviate competition between these Also, we evidence sharing nitrogen fixers from alfalfa fescue. Although networks overlapping modules, modules showing largest percentage network changed depending neighbor. In summary, this that most part maintained their despite escalating plant-plant competition.

Language: Английский

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Farmers’ suicide and stress resilience in agriculture through microbial interactions: a perspective analysis

Discover Plants., Journal Year: 2025, Volume and Issue: 2(1)

Published: Feb. 18, 2025

Language: Английский

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Phyto-microbiome engineering: Designing plant-microbe interactions for improved crop performance

The Microbe, Journal Year: 2025, Volume and Issue: unknown, P. 100272 - 100272

Published: Feb. 1, 2025

Language: Английский

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Enhancement of stress resistance of electroactive biofilms against hypersaline shock via exogenous electron mediator addition

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 155905 - 155905

Published: Sept. 1, 2024

Language: Английский

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Isolation and Characterization of Biocontrol Microbes for Development of Effective Microbial Consortia for Managing Rhizoctonia bataticola Root Rot of Cluster Bean Under Hot Arid Climatic Conditions

Microorganisms, Journal Year: 2024, Volume and Issue: 12(11), P. 2331 - 2331

Published: Nov. 15, 2024

Development of native microbial consortia is crucial for the sustainable management plant diseases in modern agriculture. This study aimed to evaluate antagonistic potential various isolates against Rhizoctonia bataticola, a significant soil-borne pathogen. A total 480 bacteria, 283 fungi, and 150 actinomycetes were isolated screened using vitro dual plate assays. Among these, 5F, 131B, 223B, 236B demonstrated highest activity, with inhibition rates 88.24%, 87.5%, 81.25%, respectively. The selected further assessed abiotic stress tolerance, revealing their ability thrive under extreme conditions. Characterization biocontrol growth-promoting activities revealed production siderophores, hydrogen cyanide, ammonia, chitinase, indole-3-acetic acid, along solubilization zinc phosphorus. Compatibility tests confirmed forming effective consortia, which significantly reduced percent disease index cluster bean. most consortium, comprising Trichoderma afroharzianum Pseudomonas fluorescens Bacillus licheniformis subtilis 236B, achieved 76.5% control. Additionally, this consortium enhanced phenol (92.1%), flavonoids (141.6%), antioxidant defense enzyme including POX (188.5%), PPOX (116.3%), PAL (71.2%), TAL (129.9%) bean plants over infected control, leading substantial improvements systemic resistance plants. also height, fresh weight, dry number pods per plant, seed yield control as well mock underscores these robust strategy managing R. bataticola enhancing crop productivity environmental

Language: Английский

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Eucommia ulmoides adapts to drought stress by recruiting rhizosphere microbes to upregulate specific functions

Biology and Fertility of Soils, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 21, 2024

Language: Английский

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