Impact of plant growth-promoting rhizobacteria (PGPR) on plant nutrition and root characteristics: Current perspective

Plant Stress, Journal Year: 2023, Volume and Issue: 11, P. 100341 - 100341

Published: Dec. 28, 2023

Through a variety of mechanisms, including increasing the amount readily available mineral nutrients, regulating phytohormone levels, and biocontrol phytopathogens, plant growth-promoting rhizobacteria (PGPR) associated with rhizosphere either directly or indirectly stimulates growth development. The establishment, survival, persistence PGPR inoculants are widely acknowledged to be contingent upon these two parameters, in addition intricate network interactions within rhizosphere. In general, soil is moist environment significant amounts carbon that have been degraded harbors large population microbes. rhizo-microbiome crucial agriculture because wide root exudates cell debris attract unique distinct patterns microbial colonization. plays role manufacture regulation extracellular molecules, hormones, secondary metabolites, antibiotics, various signaling chemicals. Additionally, composition influences texture enhancement. Research has shown can used treat plants inoculate promote alters physiology entire plant, which enhances nutrient uptake affects effectiveness activity. specific biochemical processes involved this phenomenon often not well understood. Nevertheless, new studies shed light on mechanisms via by induce responses, both at local systemic levels. Insufficient information regarding impact mechanism molecules metabolic pathways characteristics. Consequently, review will concentrate elucidating identifying essential exert influence root-microbe interactions.

Language: Английский

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The mycorrhizal symbiosis: research frontiers in genomics, ecology, and agricultural application

New Phytologist, Journal Year: 2024, Volume and Issue: 242(4), P. 1486 - 1506

Published: Jan. 31, 2024

Summary Mycorrhizal symbioses between plants and fungi are vital for the soil structure, nutrient cycling, plant diversity, ecosystem sustainability. More than 250 000 species associated with mycorrhizal fungi. Recent advances in genomics related approaches have revolutionized our understanding of biology ecology associations. The genomes 250+ been released hundreds genes that play pivotal roles regulating symbiosis development metabolism characterized. rDNA metabarcoding metatranscriptomics provide novel insights into ecological cues driving communities functions expressed by these associations, linking to traits such as acquisition organic matter decomposition. Here, we review genomic studies revealed involved uptake development, discuss adaptations fundamental evolution lifestyles. We also evaluated services provided networks how hold promise sustainable agriculture forestry enhancing stress tolerance. Overall, unraveling intricate dynamics is paramount promoting sustainability addressing current pressing environmental concerns. This ends major frontiers further research.

Language: Английский

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Navigating Climate Change: Exploring the Dynamics Between Plant–Soil Microbiomes and Their Impact on Plant Growth and Productivity

Global Change Biology, Journal Year: 2025, Volume and Issue: 31(2)

Published: Feb. 1, 2025

Understanding the intricate interplay between plant and soil microbiomes their effects on growth productivity is vital in a rapidly changing climate. This review explores interconnected impacts of climate change plant-soil profound agricultural productivity. The ongoing rise global temperatures, shifting precipitation patterns extreme weather events significantly affect composition function microbial communities rhizosphere. Changes diversity activity due to rising temperatures impact nutrient cycling, enzyme synthesis, health pest disease management. These changes also influence dynamics microbe capability promote health. As changes, plants' adaptive capacity partners become increasingly crucial for sustaining agriculture. Mitigating adverse requires comprehensive understanding mechanisms driving these processes. It highlights various strategies mitigating adapting environmental challenges, including management, stress-tolerant crops, cover cropping, sustainable land water crop rotation, organic amendments development climate-resilient varieties. emphasises need further exploration within broader context change. Promising mitigation strategies, precision agriculture targeted microbiome modifications, offer valuable pathways future research practical implementation food security

Language: Английский

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Soil microbes influence the ecology and evolution of plant plasticity

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Summary Stress often induces plant trait plasticity, and microbial communities also alter traits. Therefore, it is unclear how much plasticity results from direct responses to stress vs indirect due stress‐induced changes in soil communities. To test microbes community affect the ecology potentially evolution of I grew plants four environments (salt, herbicide, herbivory, no stress) with that had responded these same or sterile inoculant. Plants delayed flowering under only when inoculated live communities, this was maladaptive. However, ways accelerated across all environments. Microbes affected expression genetic variation for time specific leaf area, as well both traits, disrupted a positive correlation response herbicide herbivory stress, suggesting may pace evolution. Together, highlight an important role plastic suggest plasticity.

Language: Английский

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Impact of global change on the plant microbiome

New Phytologist, Journal Year: 2022, Volume and Issue: 234(6), P. 1907 - 1909

Published: May 22, 2022

Plant-associated microorganisms may be invisible to the naked eye, yet they play a key role in future sustainability of terrestrial ecosystems – from arable lands rainforests, through tundra and taiga deserts. It is now widely recognized that climate change dramatically impacts plant performance physiology. However, plants are not living alone, supra-organisms hosting wide range commensal, beneficial detrimental microbes. The with its associated microbiota collection all location faces altered environmental conditions as result rapidly changing climate. signs undeniable, dramatic impact for microbial inhabitants our planet serious concern. Warming strikingly shifts both phylogenetic functional structures soil communities, which lead unknown alterations communities processes. Similarly, their consortium directly impacted by leading different interaction characteristics, ecology, well functioning. Most importantly, might respond changes physiology, could affect diversity functioning poorly known, but critical, feedback loop. Microorganisms also an important regard adaptation conditions. Describing, understanding predicting anthropogenically-driven on plant–microbe interactions ecosystem therefore scientific societal challenge. In this New Phytologist Special Issue dedicated microbiota, several experts field discuss contributions change. so doing consider effects global warming, extreme weather, flooding other consequences host–microbiota interactions. They explore open questions research needs including: How do physiology plant-associated environment? What biology development? can mitigated? we deal spatial temporal scales arising microbiology? current questions, priorities? As follow-up, papers describe how affects associations, mechanisms involved, what function expected long term. authors world across genomic level, including above- below-ground address diversity, evolution these altering types interactions, symbiotic endophytic multi-partite Several studies investigated stress overarching objective provide platform discussion most pressing issues influencing host then, integrate information approaches. With mind, aim create systematic framework understand improve under typical (e.g. increase CO2, drought, salinity), related changes. Of note, articles microbes, bacteria or fungi, microbes pathogens cover molecular approaches implications. Through hope obtain further stimulate interest between plants, microorganisms, environment. According original articles, factors have profound only composition, microbiota. These induce either directly, indirectly via change-induced modulation and/or environment (Fig. 1a). particular, drought was found alter composition arbuscular mycorrhizal (AM) fungal (Fu et al., 2022, issue pp. 2003–2017), aboveground assemblages (Debray 2018–2031) trigger transcriptional acclimation etomycorrhizal fungus Suillus pungens (Erlandson 1910–1913). addition water deficits, warming reported modulate turnover mycelium peatland decomposer (Maillard 2032–2043) predicted assembly nitrogen fixing taxa sub-Arctic (Klarenberg 2044–2056) 1b). data, together observation (1) high fertilisation disrupt normal dynamics AM agricultural (Babalola 2057–2072), (2) replacement native birch fast growing spruce extensively bacterial boreal forests (Mundra 2073–2087), illustrate invisible, major, perturbations belowground populations Whether will major health, distribution, remains unanswered question. Given interacted 450 million years combined reports evidence co-evolution (i.e. Abdelfattah 2088–2100), it becomes clear numerous functions been co-opted promote constraints. Therefore, potential use microbiome tolerance stressors Different strategies discussed here, iterative root selection alleviate salt (King 2101–2110); habitat-adapted microbiomes (Carrell 2111–2125); (3) utilization desert environments (Maldonado 2126–2139). Particularly, transmit thermotolerance Sphagnum peatmoss resilience demonstrates rapid occur 2022). Taken together, results suggest commensals symbionts represent components promoting survival perturbations. This includes number Tansley reviews insights, Research Viewpoints various aspects fungi (Almario 1967–1976), metabolome engineering modulating (Hong 2022; 1945–1950), phyllosphere/rhizosphere mountain biogeography (Zhu 1977–1986; Trivedi 1951–1959; Wang 1987–2002), introducing probiotic (Moore 1914–1918). importance considering host-specificity (Semchenko 1929–1944), eco-evolutionary (Angulo 1919–1928), belowground–aboveground linkages (Fei 1960–1966) ecological responses We better colonization assemblages, plant–pathogen plant–beneficial microorganism affected Additional knowledge should obtained follow-up extent due rely developing interdisciplinary projects activities metabolic fluxes climate, precipitation, temperatures globally. Shedding light include 'genes-to-ecosystems' presented here intended highlight stress. Defining components, dynamics, core assist microbiome-based solutions healthy, resilient sustainable ecosystems.

Language: Английский

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Partner or perish: tree microbiomes and climate change

Trends in Plant Science, Journal Year: 2024, Volume and Issue: 29(9), P. 1029 - 1040

Published: April 18, 2024

Language: Английский

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Impact of wine-grape continuous cropping on soil enzyme activity and the composition and function of the soil microbial community in arid areas

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Feb. 13, 2024

Introduction Continuous cropping affected the stability of soil enzyme activity and structural characteristics microbial community. Owing to challenges in study complex rhizosphere communities, composition function these communities farmland ecosystems remain elusive. Here, we studied wine grapes with different years continuous investigated their relationships activity. Methods Metagenomic sequencing was conducted on soils from one uncultivated wasteland four vineyards varying durations cropping. Results The predominant were bacteria (98.39%), followed by archaea (1.15%) eukaryotes (0.45%). caused a significant increase relative abundance Rhizobiales Micrococcales but marked decrease Solirubrobacterales . At genus level, 75, 88, 65, 132, 128 genera unique wasteland, 5, 10, 15, 20 cropping, respectively. genes signal transduction highest. all enzymes measured this peaked at 5 then decreased 10 15 year increased again. In addition, activity, especially alkaline phosphatase significantly correlated diversity dominant microorganisms level. Moreover, coupled activities had greater impact community than that individual enzymes. Conclusion Our findings reveal response changes years, which has important implications for overcoming obstacles optimizing land use.

Language: Английский

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Diamonds in the rough: Dryland microorganisms are ecological engineers to restore degraded land and mitigate desertification

Microbial Biotechnology, Journal Year: 2023, Volume and Issue: 16(8), P. 1603 - 1610

Published: Jan. 15, 2023

Abstract Our planet teeters on the brink of massive ecosystem collapses, and arid regions experience manifold environmental climatic challenges that increase magnitude selective pressures already stressed ecosystems. Ultimately, this leads to their aridification desertification, is, simplified barren ecosystems (with proportionally less microbial load diversity) with altered functions food webs modification community network. Thus, preserving restoring soil health in such a fragile biome could help buffer climate change's effects. We argue microorganisms protection functional properties networks are key fight desertification. Specifically, we claim it is rational, possible certainly practical rely native dryland edaphic communities as well plants associated microbiota conserve restore mitigate depletion newly aridified lands. Furthermore, will meet objective protecting/stabilizing (and even enhancing) biodiversity globally. Without urgent conservation restoration actions take into account diversity, ultimately, simply, not have anything protect anymore.

Language: Английский

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Enhancement of soil aggregation and physical properties through fungal amendments under varying moisture conditions

Environmental Microbiology, Journal Year: 2024, Volume and Issue: 26(5)

Published: May 1, 2024

Abstract Soil structure and aggregation are crucial for soil functionality, particularly under drought conditions. Saprobic fungi, known their resilience in low moisture conditions, recognized influence on aggregate dynamics. In this study, we explored the potential of fungal amendments to enhance hydrological properties across different regimes. We used a selection 29 isolates, recovered from soils treated conditions varying colony density growth rate, single‐strain inoculation into sterilized microcosms either or high (≤−0.96 –0.03 MPa, respectively). After 8 weeks, assessed formation stability, along with such as water content, hydrophobicity, sorptivity, total biomass potential. Our findings indicate that altered improved aggregation, effects based strains levels. found positive correlation between enhanced stabilization, achieved by connecting particles via hyphae modifying sorptivity. The improvement was observed only when initial level not critical activity. Overall, our results highlight using improve agricultural thereby introducing new possibilities management context climate change.

Language: Английский

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Plant–microbe interactions ameliorate phosphate-mediated responses in the rhizosphere: a review

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

Published: June 9, 2023

Phosphorus (P) is one of the essential minerals for many biochemical and physiological responses in all biota, especially plants. P deficiency negatively affects plant performance such as root growth metabolism yield. Mutualistic interactions with rhizosphere microbiome can assist plants accessing available soil its uptake. Here, we provide a comprehensive overview plant–microbe that facilitate uptake by plant. We focus on role biodiversity improved plant, under drought conditions. P-dependent are regulated phosphate starvation response (PSR). PSR not only modulates to abiotic stresses but also activates valuable microbes which accessible P. The drought-tolerant P-solubilizing bacteria appropriate mobilization, would be an eco-friendly manner promote tolerance, extreme environments. This review summarizes improve brings important insights into ways cycling arid semi-arid ecosystems.

Language: Английский

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