Rice husk and its derived biochar assist phytoremediation of heavy metals and PAHs co-contaminated soils but differently affect bacterial community

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 466, P. 133684 - 133684

Published: Feb. 2, 2024

Language: Английский

---

Water-soluble carboxymethyl chitosan and rhamnolipids promote the remediation of Cd-contaminated soil by mediating the growth of Hylotelephium spectabile and regulating the rhizospheric ecological environment

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 486, P. 137040 - 137040

Published: Jan. 2, 2025

Language: Английский

---

Response of the rhizosphere soil microbial diversity to different nitrogen and phosphorus application rates in a hulless barley and pea mixed-cropping system

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 195, P. 105262 - 105262

Published: Jan. 7, 2024

The mixed-cropping mode of hulless barley (Hordeum vulgare L) and peas (Pisum sativum can optimize the planting system, effectively enhancing crop nitrogen phosphorus utilization increasing yield. This has been widely applied in Qinghai Province, China. In this study, a split-plot experimental design was employed to investigate bacterial fungal communities rhizosphere soil monocropping treatments under different fertilization levels. Illumina MiSeq sequencing technology used for research, physicochemical properties were measured. results indicated that with increase application phosphorus, α-diversity system initially increased then decreased after reaching peak. index bacteria higher than mode. For fungi Shannon decreased, while Chao1 ACE indices increased. Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium, Sphingomonas, Pseudomonas comprised predominant genera barley–pea intercropping treatment, whereas Fusarium, Metarhizium, Cladosporium dominated among across 12 treatments. Under same levels, relative abundances Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium treatment by 8.4 %, 7.1 5.7 5.6 respectively, compared monoculture barley, decreasing trend as levels Compared abundance Fusarium 37.3 43.8 56.8 40.3 respectively. Redundancy correlation analyses suggested variation diversity community composition zone due interaction between fertilizer significantly correlated changes organic matter, available alkaline hydrolyzable nitrogen.

Language: Английский

---

Flooding Causes Dramatic Compositional Shifts and Depletion of Putative Beneficial Bacteria on the Spring Wheat Microbiota

Frontiers in Microbiology, Journal Year: 2021, Volume and Issue: 12

Published: Nov. 5, 2021

Flooding affects both above- and below-ground ecosystem processes, it represents a substantial threat for crop cereal productivity under climate change. Plant-associated microbiota play crucial role in plant growth fitness, but we still have limited understanding of the response crop-microbiota complex extreme weather events, such as flooding. Soil microbes are highly sensitive to abiotic disturbance, shifts microbial community composition, structure functions expected when soil conditions altered due flooding events (e.g., anoxia, pH alteration, changes nutrient concentration). Here, established pot experiment determine effects stress on spring wheat-microbiota complex. Since phenology could be an important factor hydrological stress, was induced only once at different stages (PGSs), tillering, booting flowering. After each event, measured control flooded pots several edaphic properties characterized bacterial associated rhizosphere roots wheat using metabarcoding approach. In our study, caused significant reduction development observed dramatic composition PGS which induced. However, more pronounced disruption assembly always shown younger plants. Generally, (i) increase taxa with anaerobic respiratory capabilities, members Firmicutes Desulfobacterota, (ii) Actinobacteria Proteobacteria, (iii) depletion putative plant-beneficial taxa, (iv) increases abundance potential detrimental bacteria. These differences between samples were correlated by total N soil, S, Na, Mn, Ca concentrations root most influencing assemblage mircobiota stress. Collectively, findings demonstrated restructuring microbiota, highlighted effect this fitness performance.

Language: Английский

---

Roots recruited distinct rhizo-microbial communities to adapt to long-term Cd and As co-contaminated soil in wheat-maize rotation

Environmental Pollution, Journal Year: 2023, Volume and Issue: 342, P. 123053 - 123053

Published: Nov. 30, 2023

Language: Английский

---

Amorphous silica fertilization ameliorated soil properties and promoted putative soil beneficial microbial taxa in a wheat field under drought

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 196, P. 105286 - 105286

Published: Jan. 22, 2024

Increasing water demand from agricultural practices and environmental pollution caused by the intensive use of agrochemicals are among most pressing issues concerning agriculture sustainability. The amorphous silica (ASi) as soil amendment can represent a valid alternative measure to cope with upcoming challenges intensifying drought stress decrease need for phosphorus fertilizer application. In this study, we investigated impact two levels ASi fertilization on edaphic characteristics rhizosphere microbiota winter wheat through field experiment conducted during period. Since plant phenology plays pivotal role in shaping crop microbiota, our research explored response bacteria fungi at three distinct stages growth: pre-planting, tillering, ripening. Firstly, results clearly showed an ameliorative effect properties, notable improvements moisture, particularly higher levels. Secondly, observed that exerted profound influence resulting varying effects bacterial fungal communities. Specifically, comparison control treatment, community composition exhibited greater sensitivity tillering stage, whereas displayed increased dissimilarity ripening stage. Notably, promoted enrichment plant-beneficial microbes putative plant-growth promoting biocontrol capabilities. Overall, findings highlight efficacy effective mitigate stress, enhance availability nutrients, promote beneficial within cereal cropping systems.

Language: Английский

---

Host Plant Selection Imprints Structure and Assembly of Fungal Community along the Soil-Root Continuum

mSystems, Journal Year: 2022, Volume and Issue: 7(4)

Published: Aug. 9, 2022

The soil fungal community plays pivotal roles in nutrient cycling and plant health productivity agricultural ecosystems. However, the differential adaptability of fungi to different microenvironments (niches) is a bottleneck limiting their application agriculture. Hence, understanding ecological processes that drive microbiome assembly along soil-root continuum fundamental harnessing plant-associated for sustainable Here, we investigated factors shape structure three compartment niches (the bulk soil, rhizosphere, rhizoplane) associated with tobacco (Nicotiana tabacum L.), four types tested under controlled greenhouse conditions. Our results demonstrate governed by host rather than type chemical properties exert negligible effect on rhizoplane. Fungal diversity network complexity decreased order > rhizosphere rhizoplane, dramatic decrease Ascomycota species number abundance continuum. facilitations (positive interactions) were enhanced among taxa rhizoplane niche. supported specialization enrichment some rare species, contributing assimilative all types. Mortierella Pyrenochaetopsis identified as important indicator genera good predictors agronomic traits. findings provide empirical evidence selection enrichment/depletion IMPORTANCE shaped largely type. This finding facilitates implementations fungi-associated biocontrol growth-promoting specific plants agriculture practice, regardless impacts from variations geographical environments. Furthermore, depletion complex associations enhancement rhizoplane-associated potential simplification an approach target applications. indicators are traits, which should be given attention when manipulating root-associated microbiome.

Language: Английский

---

Bacteria drive soil multifunctionality while fungi are effective only at low pathogen abundance

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 906, P. 167596 - 167596

Published: Oct. 5, 2023

Language: Английский

---

Cereals rhizosphere microbiome undergoes host selection of nitrogen cycle guilds correlated to crop productivity

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 911, P. 168794 - 168794

Published: Nov. 23, 2023

Language: Английский

---

Variability of microbiomes in winter rye, wheat, and triticale affected by snow mold: predicting promising microorganisms for the disease control

Environmental Microbiome, Journal Year: 2025, Volume and Issue: 20(1)

Published: Jan. 11, 2025

Snow mold caused by different psychrophilic phytopathogenic fungi is a devastating disease of winter cereals. The variability the snow pathocomplex (the quantitative composition fungi) has not been evaluated across crops or agrocenoses, and no microbial taxa have predicted at whole-microbiome level as potential effective control agents. Our study aimed to assess in cereal (rye, wheat, triticale) agrocenoses following peak progression arrange hierarchical list be main candidates prevent or, conversely, stimulate development pathogens. microbiomes between within particular agrocenosis was largely determined fungal communities, whereas crop bacterial communities. most "constant" rye, with lowest between-replicate between-agrocenoses (similar triticale pathocomplex) strong dominance Microdochium over other fungi. wheat represented fungi, including poorly investigated Phoma sclerotioides. To predict mold-control microorganisms, conveyor statistical methods formed applied; this enables considering only correlation abundance target phytopathogen but also stability fitness plant-associated communities reproducibility effect under conditions. This can widely used search for biological agents against various plant infectious diseases. top indicator rye period were Ph. sclerotioides Microdochium, respectively, both which are causal disease. Bacteria from Cellulomonas, Lechevalieria, Pseudoxanthomonas genera Cladosporium, Entimomentora, Pseudogymnoascus, Cistella prime testing their plant-protective properties Microdochium-induced further use agricultural practice.

Language: Английский

---