Understanding the plant-microbe interactions in environments exposed to abiotic stresses: An overview

Microbiological Research, Journal Year: 2023, Volume and Issue: 271, P. 127368 - 127368

Published: March 22, 2023

Abiotic stress poses a severe danger to agriculture since it negatively impacts cellular homeostasis and eventually stunts plant growth development. stressors like drought excessive heat are expected occur more frequently in the future due climate change, which would reduce yields of important crops maize, wheat, rice may jeopardize food security human populations. The microbiomes varied taxonomically organized microbial community that is connected plants. By supplying nutrients water plants, regulating their physiology metabolism, microbiota helps plants develop tolerate abiotic stresses, can boost crop yield under stresses. In this present study, with emphasis on temperature, salt, stress, we describe current findings how stresses impact microbiomes, microbe-microbe interactions, plant-microbe interactions as way microorganisms affect metabolism plant. We also explore crucial measures must be taken applying practices faced

Language: Английский

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Response of dissolved organic matter (DOM) and microbial community to submerged macrophytes restoration in lakes: A review

Environmental Research, Journal Year: 2023, Volume and Issue: 231, P. 116185 - 116185

Published: May 17, 2023

Language: Английский

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Synergistic impact of nanomaterials and plant probiotics in agriculture: A tale of two-way strategy for long-term sustainability

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: May 3, 2023

Modern agriculture is primarily focused on the massive production of cereals and other food-based crops in a sustainable manner order to fulfill food demands an ever-increasing global population. However, intensive agricultural practices, rampant use agrochemicals, environmental factors result soil fertility degradation, pollution, disruption biodiversity, pest resistance, decline crop yields. Thus, experts are shifting their focus eco-friendly safer methods fertilization ensure sustainability. Indeed, importance plant growth-promoting microorganisms, also determined as “plant probiotics (PPs),” has gained widespread recognition, usage biofertilizers being actively promoted means mitigating harmful effects agrochemicals. As bio-elicitors, PPs promote growth colonize or tissues when administered soil, seeds, surface used alternative avoid heavy In past few years, nanotechnology brought revolution due application various nanomaterials (NMs) nano-based fertilizers increase productivity. Given beneficial properties NMs, these two can be tandem maximize benefits. combinations NMs PPs, synergistic use, its infancy but exhibited better crop-modulating terms improvement productivity, mitigation stress (drought, salinity, etc.), restoration fertility, strengthening bioeconomy. addition, proper assessment necessary before application, dose should applicable without showing any toxic impact environment microbial communities. The combo encapsulated within suitable carrier, this method aids controlled targeted delivery entrapped components increases shelf life PPs. review highlights functional annotation combined manner.

Language: Английский

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Drought Tolerance in Plants: Physiological and Molecular Responses

Plants, Journal Year: 2024, Volume and Issue: 13(21), P. 2962 - 2962

Published: Oct. 23, 2024

Drought, a significant environmental challenge, presents substantial risk to worldwide agriculture and the security of food supplies. In response, plants can perceive stimuli from their environment activate defense pathways via various modulating networks cope with stress. Drought tolerance, multifaceted attribute, be dissected into distinct contributing mechanisms factors. Osmotic stress, dehydration dysfunction plasma endosome membranes, loss cellular turgidity, inhibition metabolite synthesis, energy depletion, impaired chloroplast function, oxidative stress are among most critical consequences drought on plant cells. Understanding intricate interplay these physiological molecular responses provides insights adaptive strategies employ navigate through Plant cells express withstand reverse effects These include osmotic adjustment preserve turgor, synthesis protective proteins like dehydrins, triggering antioxidant systems counterbalance A better understanding tolerance is crucial for devising specific methods improve crop resilience promote sustainable agricultural practices in environments limited water resources. This review explores employed by address challenges

Language: Английский

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Agroecological Management of the Grey Mould Fungus Botrytis cinerea by Plant Growth-Promoting Bacteria

Plants, Journal Year: 2023, Volume and Issue: 12(3), P. 637 - 637

Published: Feb. 1, 2023

Botrytis cinerea is the causal agent of grey mould and one most important plant pathogens in world because damage it causes to fruits vegetables. Although application botrycides common protection strategies used world, plant-beneficial bacteria might replace facilitating agroecological production practices. Based on this, we reviewed different stages B. infection plants biocontrol mechanisms exerted by bacteria, including well-known growth-promoting (PGPB). Some PGPB control disease include antibiosis, space occupation, nutrient uptake, ethylene modulation, induction defence mechanisms. In addition, recent studies action anti-Botrytis compounds produced how they conidial mycelial structures pathogen are reviewed. Likewise, advantages individual inoculations versus those that require joint antagonist agents (microbial consortia) discussed. Finally, should be emphasised an excellent option prevent crops their use expanded for environmentally friendly agricultural

Language: Английский

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Mitigation of water scarcity with sustained growth of Rice by plant growth promoting bacteria

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Jan. 23, 2023

Climate change augments the risk to food security by inducing drought stress and a drastic decline in global rice production. Plant growth-promoting bacteria (PGPB) have been known improve plant growth under stress. Here present study, we isolated, identified, well-characterized eight drought-tolerant from rhizosphere that are tolerant 20% PEG-8000. These strains exhibited multiple traits, i.e., 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase activity, exopolysaccharide production, phosphate (P)-solubilizing activity (51–356 µg ml -1 ), indole-3 acetic (IAA) production (14.3–46.2 of organic acids (72–178 ). Inoculation bacterial consortium ( Bacillus subtilis NM-2, Brucella haematophilum NM-4, cereus NM-6) significantly improved seedling vigor index (1009.2-1100) as compared non-inoculated stressed plants (630-957). Through rhizoscanning, efficiency was validated root parameters such length (17%), diameter, surface area (18%) all tested genotypes with respective treatments. Furthermore, response inoculation on three positively correlated ameliorating traits accumulation osmoprotectant, proline (85.8%–122%), relative water content (51%), membrane stability (64%), antioxidant enzymes reduce oxidative damage reactive oxygen species. A decrease temperature chlorophyll inoculated were found using infrared thermal imaging soil analyzer development (SPAD), respectively. The key supporting role toward responses robust techniques like an gas analyzer. principal component analysis depicts contribution yield integration genotype (NIBGE-DT02) potential strains, NM-6, can serve effective bioinoculant cope scarcity current alarming issues related fluctuating climate.

Language: Английский

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Assessing Morpho-Physiological and Biochemical Markers of Soybean for Drought Tolerance Potential

Sustainability, Journal Year: 2023, Volume and Issue: 15(2), P. 1427 - 1427

Published: Jan. 11, 2023

Drought stress provokes plants to change their growth pattern and biochemical contents overcome adverse situations. Soybean was grown under 40 (drought) 80% (control) of field capacity (FC) determine the morpho-physiological alterations that occur drought conditions. The experiment conducted following a randomized complete block design with three replications. results showed exerted detrimental effects on photosynthetic attributes, leaf production, pigment water content, plant growth, dry matter production soybean. However, favored producing higher amount proline malondialdehyde in soybean than control. pod seed grain size, yield were also adversely affected by drought, where genotypic variations conspicuous. Interestingly, studied parameters AGS383 minimally drought. This genotype capable maintaining healthier root shoot greater area, preserving greenness cell membrane stability, photosynthesis, absorbing sustaining potential, lower heavier grains make it out yielder both Considering changes morpho-physiological, biochemical, contributing parameters, could be cultivated as relatively drought-tolerant, high-yielding variety. Further study is needed uncover genes responsible for adaptation drought-stress environments, this might used parent material breeding program develop high-yielding, drought-tolerant

Language: Английский

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Osmolyte-producing microbial biostimulants regulate the growth of Arachis hypogaea L. under drought stress

BMC Microbiology, Journal Year: 2024, Volume and Issue: 24(1)

Published: May 15, 2024

Abstract Globally, drought stress poses a significant threat to crop productivity. Improving the tolerance of crops with microbial biostimulants is sustainable strategy meet growing population’s demands. This research aimed elucidate biostimulants’ (Plant Growth Promoting Rhizobacteria) role in alleviating oil-seed crops. In total, 15 bacterial isolates were selected for and screened plant growth-promoting (PGP) attributes like phosphate solubilization production indole-3-acetic acid, siderophore, hydrogen cyanide, ammonia, exopolysaccharide. describes two PGPR strains: Acinetobacter calcoaceticus AC06 Bacillus amyloliquefaciens BA01. The present study demonstrated that these strains (AC06 BA01) produced abundant osmolytes under osmotic stress, including proline (2.21 1.75 µg ml − 1 ), salicylic acid (18.59 14.21 trehalose (28.35 22.74 mg FW) glycine betaine (11.35 7.74 g ) respectively. BA01 further evaluated their multifunctional performance by inoculating Arachis hypogaea L. (Groundnut) mild severe regimes (60 40% Field Capacity). Inoculation displayed distinct osmotic-adjustment abilities groundnut, such as growth parameters, biomass, photosynthetic pigments, relative water content, proline, soluble sugar respective control during drought. On other hand, sensitivity indexes electrolyte leakage malondialdehyde (MDA) contents decreased well cooperatively conferred induced alterations indicators catalase (CAT), ascorbate peroxidase (APX), superoxide dismutase (SOD). Thus, sp. can be considered osmolyte producing simultaneously induce metabolic changes groundnuts stress.

Language: Английский

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Unlocking the Potential of Plant Growth-Promoting Rhizobacteria to Enhance Drought Tolerance in Egyptian Wheat (Triticum aestivum)

Sustainability, Journal Year: 2024, Volume and Issue: 16(11), P. 4605 - 4605

Published: May 29, 2024

Plant growth-promoting rhizobacteria (PGPRs) represent a promising strategy for enhancing plant resilience and yields under drought-stress conditions. This study isolated characterized PGPR from wheat rhizosphere soil in Egypt. Four strains were evaluated an array of traits, including IAA production, biofilm formation, siderophore nitrogen fixation, ACC deaminase activity, phosphate solubilization, antagonistic potential. Molecular identification via 16S rRNA sequencing classified three isolates (MMH101, MMH102, MMH103) within the Bacillus genus one isolate (MMH104) as Myroides sp. Greenhouse experiments examined effects inoculation on drought-stressed Egyptian cultivar, Gimmeza-9. Wheat plants inoculated with showed dramatic improvements growth parameters stress tolerance indicators compared to non-inoculated controls when subjected 10-day drought period, rugosus (MMH101) resulting increases 61.8% fresh biomass, 77.2% dry 108.5% shoot length, 134.9% root length. treatments also elevated chlorophyll proline content while reducing malondialdehyde levels. The findings demonstrate effectiveness morphology, physiology, wheat. Isolated hold promise biofertilizers improving cereal productivity water-deficit

Language: Английский

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Formulation challenges associated with microbial biofertilizers in sustainable agriculture and paths forward

Journal of Sustainable Agriculture and Environment, Journal Year: 2024, Volume and Issue: 3(3)

Published: Sept. 1, 2024

Abstract Sustainable increase in agriculture productivity is confronted by over‐reliance and over‐use of synthetic chemical fertilizers. With a market projection $5.02 billion 2030, biofertilizers are gaining momentum as supplement and, some cases, an alternative to Biofertilizers can improve the nutritional supply plant simultaneously soil health, reduce greenhouse emissions, hence directly contribute towards environmental sustainability. Plant growth‐promoting microbes (PGPMs) particularly receiving significant attention biofertilizers. They widely known for their ability growth via increasing nutrient availability use efficiency. However, except few successful commercialization PGPM‐based inoculants still limited, mainly due lack field efficacy consistency. Lack effective formulation technologies that keep microbial viable during storage, transport application considered one key factors drive inconsistent In this review, we identify current challenges associated with inoculants. We propose future paths, including advancement potentially efficient, eco‐friendly cost‐effective. argue enhance global adoption biofertilizers, new innovations based on transdisciplinary approaches indispensable. The emerging framework should encompass robust quality control system at all stages. Additionally, active partnership between academic industry stakeholders will pave way enhanced

Language: Английский

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