Nutrients in the rhizosphere: A meta-analysis of content, availability, and influencing factors

The Science of The Total Environment, Год журнала: 2022, Номер 826, С. 153908 - 153908

Опубликована: Фев. 18, 2022

Язык: Английский

---

Destabilized microbial networks with distinct performances of abundant and rare biospheres in maintaining networks under increasing salinity stress

iMeta, Год журнала: 2023, Номер 2(1)

Опубликована: Янв. 9, 2023

Abstract Global changes such as seawater intrusion and freshwater resource salinization increase environmental stress imposed on the aquatic microbiome. A strong predictive understanding of responses microbiome to will help in coping with “gray rhino” events environment, thereby contributing an ecologically sustainable future. Considering that microbial ecological networks are tied stability ecosystem functioning abundant rare biospheres different biogeographic patterns important drivers functioning, roles maintaining need be clarified. Here we showed that, increasing salinity induced by freshwater‐to‐seawater transition, diversity reduced significantly taxonomic structure experienced a succession. The complexity were diminished stress. composition microorganisms supporting underwent sharp turnovers during biosphere behaving more robustly than biosphere. Notably, played much role stabilizing under low‐stress environments, but difference between their relative importance narrowed stress, suggesting weakened “Matthew effect” world. With in‐depth insights into ecology our findings highlight adjusting conservation strategies for maintain functions services response rising

Язык: Английский

---

Mechanisms and implications of bacterial–fungal competition for soil resources

The ISME Journal, Год журнала: 2024, Номер 18(1)

Опубликована: Янв. 1, 2024

Abstract Elucidating complex interactions between bacteria and fungi that determine microbial community structure, composition, functions in soil, as well regulate carbon (C) nutrient fluxes, is crucial to understand biogeochemical cycles. Among the various interactions, competition for resources main factor determining adaptation niche differentiation these two big groups soil. This because C energy limitations growth are a rule rather than an exception. Here, we review demands of fungi—the major kingdoms soil—the mechanisms their other resources, leading differentiation, global change impacts on this competition. The normalized utilization preference showed 1.4–5 times more efficient uptake simple organic compounds substrates, whereas 1.1–4.1 effective utilizing compounds. Accordingly, strongly outcompete while take advantage Bacteria also compete with products released during degradation substrates. Based specifics, differentiated spatial, temporal, chemical niches will increase under five changes including elevated CO2, N deposition, soil acidification, warming, drought. Elevated warming bacterial dominance, acidification drought fungal competitiveness.

Язык: Английский

---

Rhizosphere bacterial interactions and impact on plant health

Current Opinion in Microbiology, Год журнала: 2023, Номер 73, С. 102297 - 102297

Опубликована: Март 30, 2023

The rhizosphere is a chemically complex environment that harbors strikingly diverse microbial community. past few decades have seen rapid growth in the body of literature on plant–microbe–microbe interactions and plant health. Thus, aim this paper to review current knowledge (specifically bacteria) how these influence microbiomes impact This article discusses (i) recruits beneficial bacteria ii) competition between mechanisms/weapons employed bacteria–bacteria shapes microbiome turn affects heath. discussion mainly focuses interference competition, characterized by production specialized metabolites (antibacterial compounds) exploitative where bacterial strain restricts competitor's access nutrients such as through secretion siderophores could allude cooperation. Understanding mechanisms plant–bacteria provide insights into manipulate for improved agricultural outcomes.

Язык: Английский

---

Microbially mediated mechanisms underlie soil carbon accrual by conservation agriculture under decade-long warming

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Янв. 8, 2024

Abstract Increasing soil organic carbon (SOC) in croplands by switching from conventional to conservation management may be hampered stimulated microbial decomposition under warming. Here, we test the interactive effects of agricultural and warming on SOC persistence underlying mechanisms a decade-long controlled experiment wheat-maize cropping system. Warming increased content accelerated fungal community temporal turnover agriculture (no tillage, chopped crop residue), but not (annual residue removed). Microbial use efficiency (CUE) growth linearly over time, with stronger positive after 5 years agriculture. According structural equation models, these increases arose greater inputs crops, which indirectly CUE via changes communities. As result, necromass 28 53%, emerging as strongest predictor content. Collectively, our results demonstrate how climatic factors can interact alter composition, physiology functions and, turn, formation accrual croplands.

Язык: Английский

---

Recruitment of the rhizo-microbiome army: assembly determinants and engineering of the rhizosphere microbiome as a key to unlocking plant potential

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Май 5, 2023

The viable community of microorganisms in the rhizosphere significantly impacts physiological development and vitality plants. assembly functional capacity microbiome are greatly influenced by various factors within rhizosphere. primary host plant genotype, developmental stage status, soil properties, resident microbiota. These drive composition, dynamics, activity microbiome. This review addresses intricate interplay between these how it facilitates recruitment specific microbes to support growth resilience under stress. also explores current methods for engineering manipulating microbiome, including plant-mediated manipulation, soil-related methods, microbe-mediated methods. Advanced techniques harness plant's ability recruit useful promising use rhizo-microbiome transplantation highlighted. goal this is provide valuable insights into knowledge, which will facilitate cutting-edge strategies enhanced stress tolerance. article indicates avenues future research field.

Язык: Английский

---

Biotic stress-induced changes in root exudation confer plant stress tolerance by altering rhizospheric microbial community

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

Опубликована: Март 10, 2023

Every organism on the earth maintains some kind of interaction with its neighbours. As plants are sessile, they sense varied above-ground and below-ground environmental stimuli decipher these dialogues to microbes neighbouring via root exudates as chemical signals resulting in modulation rhizospheric microbial community. The composition depends upon host genotype, cues, other biotic factors. Crosstalk agents such herbivores, microbes, can change plant exudate composition, which may permit either positive or negative interactions generate a battlefield rhizosphere. Compatible utilize carbon sources their organic nutrients show robust co-evolutionary changes changing circumstances. In this review, we have mainly focused different factors responsible for synthesis alternative leading rhizosphere microbiota. Understanding stress-induced community help us devise strategies engineering microbiomes enhance adaptive capabilities stressful environment.

Язык: Английский

---

Geographical, climatic, and soil factors control the altitudinal pattern of rhizosphere microbial diversity and its driving effect on root zone soil multifunctionality in mountain ecosystems

The Science of The Total Environment, Год журнала: 2023, Номер 904, С. 166932 - 166932

Опубликована: Сен. 9, 2023

Shifts in rhizosphere soil microorganisms of dominant plants' response to climate change profoundly impact mountain ecosystem multifunctionality; relatively little is known about the relationship between them and how they depend on long-term environmental drivers. Here, we conducted analyses microbial altitudinal pattern, community assembly, co-occurrence network 6 plants six typical vegetation zones ranging from 1350 2900 m (a.s.l.) Helan Mountains by absolute quantitative sequencing technology, finally related microbiomes root zone multifunctionality ('soil multifunctionality' hereafter), dependence was explored. It found that pattern bacterial fungal diversities differed significantly. Higher more potential interactions Stipa breviflora Carex coninux were at lowest highest altitudes. Bacterial α diversity, identity some taxa, had significant positive or negative effects multifunctionality. The effect sizes diversity greater than those effects. These results indicated balance microbes determines As number phylum level increases, there will be a net gain Our study reveals geographical climatic factors can directly modulate properties thereby affecting driving multifunctionality, points rather fungi being strongly associated with This work has important ecological implications for predicting multiple environment-plant-soil-microorganisms ecosystems respond future change.

Язык: Английский

---

Dynamic root microbiome sustains soybean productivity under unbalanced fertilization

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Фев. 23, 2024

Abstract Root-associated microbiomes contribute to plant growth and health, are dynamically affected by development changes in the soil environment. However, how different fertilizer regimes affect quantitative microbial assembly effect remains obscure. Here, we explore temporal dynamics of root-associated bacteria soybean using microbiome profiling (QMP) examine its response unbalanced treatments (i.e., lacking either N, P or K) role sustaining after four decades fertilization. We show that exhibit strong succession during development, bacterial loads largely increase at later stages, particularly for Bacteroidetes. Unbalanced fertilization has a significant on rhizosphere bacteria, absence N community diverges from fertilized plants, while impedes total load turnover bacteria. Importantly, SynCom derived low-nitrogen-enriched cluster is capable stimulating growth, corresponding with stabilized productivity fertilizer. These findings provide new insights highlight key ecological prospects sustainable agricultural management.

Язык: Английский

---

Land conversion to agriculture induces taxonomic homogenization of soil microbial communities globally

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Апрель 29, 2024

Abstract Agriculture contributes to a decline in local species diversity and above- below-ground biotic homogenization. Here, we conduct continental survey using 1185 soil samples compare microbial communities from natural ecosystems (forest, grassland, wetland) with converted agricultural land. We combine our results global meta-analysis of available sequencing data that cover more than 2400 across six continents. Our combined demonstrate land conversion taxonomic functional homogenization bacteria, mainly driven by the increase geographic ranges taxa croplands. find 20% phylotypes are decreased 23% increased conversion, croplands enriched Chloroflexi, Gemmatimonadota, Planctomycetota, Myxcoccota Latescibacterota . Although there is no significant difference composition between land, genes involved nitrogen fixation, phosphorus mineralization transportation depleted cropland. provide insight into consequences land-use change on diversity.

Язык: Английский

---