Fostering plant resilience to drought with Actinobacteria: Unveiling perennial allies in drought stress tolerance

Plant Stress, Journal Year: 2023, Volume and Issue: 10, P. 100242 - 100242

Published: Sept. 29, 2023

As climate change exacerbates drought conditions, global crop production faces an escalating threat. Fortunately, eco-friendly solution lies in harnessing the potential of plant-associated plant growth-promoting bacteria. However, it's crucial to recognize that drought's impact extends beyond plants; it also influences composition, abundance, and activity bacterial communities. Amongst these root-associated communities, Actinobacteria are key players preserving well-being hosts during stress, with research demonstrating minimal disruption communities under conditions. Actinobacteria, found ubiquitously, exceptional candidates for promoting growth due their prevalence soil rhizosphere, adeptness at colonizing roots surfaces, capability produce diverse secondary metabolites stress. With attributes, members phylum present themselves as most promising microbial inoculation plants. They enriched rhizosphere endosphere microbiomes crops enduring water deficit stress Notably, particularly Streptomyces genus, employ various mechanisms, such modulation phytohormone levels, reinforcement antioxidant enzymes, enhanced nutrient uptake, more, alleviate crops. This comprehensive review explores actinobacterial diversity associated plants delves into on Actinobacteria. It examines mechanisms through which mitigate Emphasizing role multi-omics techniques broadening our understanding plant-Actinobacteria interactions, this aims inspire further exploration relatively uncharted territory. Furthermore, discusses future directions application traits, underlining sustainable agricultural practices.

Language: Английский

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Mechanistic and future prospects in rhizospheric engineering for agricultural contaminants removal, soil health restoration, and management of climate change stress

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 927, P. 172116 - 172116

Published: April 3, 2024

Language: Английский

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Biochar from agricultural waste as a strategic resource for promotion of crop growth and nutrient cycling of soil under drought and salinity stress conditions: a comprehensive review with context of climate change

Journal of Plant Nutrition, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 52

Published: Feb. 6, 2025

Language: Английский

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Combined Effect of Biochar and Plant Growth-Promoting Rhizbacteria on Physiological Responses of Canola (Brassica napus L.) Subjected to Drought Stress

Journal of Plant Growth Regulation, Journal Year: 2024, Volume and Issue: 43(6), P. 1814 - 1832

Published: Jan. 28, 2024

Abstract Biochar (BC) and plant growth-promoting microbes (PGPR) could represent a suitable agronomical strategy to mitigate the impacts of drought in arid agro-environmental conditions. However, there is currently little understanding synergistic benefit combining BC PGPR increase tolerance oilseeds. In this study, physiological response two water-stressed canola ( Brassica napus L.) plants subjected application obtained from waste wood Morus alba applied solely or combination with strains Pseudomonas sp.) was evaluated. The experiment consists genotypes nine treatments [(C-Control, T1-15 days (15DD), T2-30 (30DD), T3-15 + PG (15DD PG), T4-30 (30DD T5-15 biochar BC), T6-30 T7-15 T8-30 PG)]. Drought stress decreased emergence energy (EE), leaf area index (LAI), ratio (LAR), root shoot (RSR), moisture content leaves (MCL), percent (%MC), (MCS) (MCR), relative water (RWC) both varieties L., which contrast, it increased by collective PGPR. varieties, N, P, K, Mg, Ca concentrations were highest all PGPRs separate combined treatments, while lowest 15 30 treatments. Osmolyte contents like Glycine betaine (GB) sugar remarkably condition then reduced due has repressive effect on antioxidant enzymatic system Peroxidase (POD), Superoxide dismutase (SOD), glutathione reductase (GR) as well total flavonoids, phenolics, protein content. enzymes phenolic compounds dramatically action PGPRs. A significant EE, LAR, RSR, RWC under conditions, evidently highlighting results conclude substantial positive use canola's induced stress, regulating physiological, biochemical, agronomic traits plants. Graphical

Language: Английский

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Drought stress mitigation through bioengineering of microbes and crop varieties for sustainable agriculture and food security

Current Research in Microbial Sciences, Journal Year: 2024, Volume and Issue: 7, P. 100285 - 100285

Published: Jan. 1, 2024

Climate change and agriculture are intrinsically connected sudden changes in climatic conditions adversely impact global food production security. The climate change-linked abiotic stressors like drought high temperatures resulting crop failure. most severe stress significantly affect the stomatal closure, of reactive oxygen species, transpiration, photosynthesis or other physiological processes plant morphology, growth yield. Therefore, there is an exigent need for cost effective eco-friendly modern technologies to induce tolerance plants leading climate-adapted sustainable agricultural practices sustained production. Among many options being pursued this regard, use promoting microbes (PGPMs) approach promote resilience better productivity. These PGPMs confer resistance via various direct indirect mechanisms including antioxidants, enzymes, exopolysaccharides, modulation phytohormones level, osmotic adjustment by inducing accumulation sugars, along with increases nutrients, water uptake photosynthetic pigments. However, several technological ecological challenges limit their sometimes treatment beneficial fails produce desired results under field conditions. Thus, development synthetic microbial communities host mediated microbiome engineering transgenic capacity express traits may survival present review critically assesses research evidence on potentials genes as develop resilient increased Effective collaboration among scientific communities, policymakers regulatory agencies needed create strong frameworks that both regulate utilization agriculture.

Language: Английский

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Complex Microbial Fertilizer Promotes the Growth of Summer-Sown Short-Season-Cultivated Cotton and Increases Cotton Yield in the Yangtze River Basin by Changing the Soil Microbial Community Structure

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 404 - 404

Published: Feb. 4, 2025

The summer-sowing short-season cotton cultivation model is an important method for simplified and mechanized planting in the Yangtze River Basin. However, effects of microbial fertilizers on growth soil under this remain unclear. In 2023, we conducted a systematic analysis application (compost) at varying levels (CK, MF1, MF2, MF3) during different stages (bud, flowering, bolling, boll opening). Results showed that appropriate fertilizer (MF2 enhanced bacterial fungal diversity, enriched beneficial microorganisms (e.g., Acidobacteriota Candidatus Udaeobacter), improved nutrient availability, increased antioxidant enzyme activity (POD, SOD), while reducing membrane lipid peroxidation (MDA). These led to significant improvements yield traits, such as plant height, number fruiting branches bolls, weight, coat weight. highest level (MF3) resulted 54.35% increase seed 75.37% lint compared CK. PLS-DA (Partial Least Squares Discriminant Analysis) multivariate statistical analyses revealed fine-tuned community composition, emphasizing dynamic balance ecosystem. This study provides scientific support optimizing strategies enhance quality summer-sown promote sustainable agriculture.

Language: Английский

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Amendment of Tomato (Lycopersicon esculentum L.) Grown in Calcareous Soil with Spent Mushroom Substrate-derived Biochar: Improvement of Morphological, Biochemical, Qualitative Attributes, and Antioxidant Activities

Journal of soil science and plant nutrition, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Language: Английский

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Mechanistic insights and future perspectives of drought stress management in staple crops

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: March 27, 2025

Due to extended periods of below-normal rainfall and rising temperatures, drought is a significant global issue for agricultural productivity. Hydrological, agricultural, meteorological droughts all pose different problems with regard the availability water important crops, which in turn impacts plant development yield. Depending on crop species stage maturity, stress degrades metabolism physiological processes, resulting decreased growth yield losses that can range from 30% 90%. Acclimatization adaptation are two basic techniques plants use survive drought. Rapid alterations processes chemical composition, including modifications osmotic pressure, root leaf size, antioxidant systems, part acclimatization. Xerophytism succulence characteristics drought-resistant have evolved assist preserve cellular integrity balance water-limited environments. Even these tactics, majority crops—such as maize, rice, wheat—remain extremely vulnerable stress. To lessen effects drought, researchers looked into number strategies, both conventional cutting-edge methods. Conventional techniques, like application growth-promoting bacteria (PGPB) morphological modifications, remain essential improving resilience. Recent breakthroughs provided innovative alternatives such nanoparticle (NP) treatments biochar, enhance Biochar enhances soil moisture retention nutrient accessibility, whereas nanoparticles augment absorption bolster molecular resilience under Furthermore, microbial inoculants absorption, facilitating arid conditions. This review examines three staple emphasizing traditional novel approaches consequences We highlight how combining insights ecology, biochemistry, biology, technologies biochar boost production resistance water-scarce

Language: Английский

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Combine application of N and biofertilizers improved plant morphology and soil environment via regulating rhizosphere bacterial community under sugarcane monocropping

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 210, P. 118074 - 118074

Published: Jan. 19, 2024

Language: Английский

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Optimizing soil health through activated acacia biochar under varying irrigation regimes and cultivars for sustainable wheat cultivation

PeerJ, Journal Year: 2025, Volume and Issue: 13, P. e18748 - e18748

Published: Jan. 17, 2025

Wheat, a staple food crop globally, faces the challenges of limited water resources and sustainable soil management practices. The pivotal elements current study include integration activated acacia biochar (AAB) in wheat cultivation under varying irrigation regimes (IR). A field trial was conducted Botanical Garden, University Punjab, Lahore during 2023-2024, designed as split-split-plot arrangement with RCBD comprising three AAB levels (0T, 5T, 10T, T = tons per hectare) cultivars (Dilkash-2020, Akbar-2019, FSD-08) receiving five IR (100%, 80%, 70%, 60%, 50% capacity). Biochar amended showed improved BET surface area, pore size, volume. Carbon recovery (45%) carbon sequestration capacity (49%) 10T-AAB were better than non-amended (0.43% 0.13%, respectively). amendment significantly soil's microporosity retention capacity, increasing it by 1.1 2.2 times, respectively. Statistical analysis that reduction negatively affected plant growth yield. increased sugar contents (14%), relative content (10-28%), membrane stability index (27-55%), photosynthetic pigments (18-26%) leaves deficit among all cultivars. Maximum stress markers (catalase, proline, peroxidase, superoxide dismutase) observed from Akbar 0T-AAB, least irrigated Dilkash-2020 soil. Among cultivars, to be best for maximum yield, followed FSD-08 When compared other levels, had highest yield enhancement (12, 11, 9.2 times Dilkash-2020, FSD-08, Hence, enhanced production improving properties, drought resilience, attributes.

Language: Английский

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