Serratia spp. as plant growth-promoting bacteria alleviating salinity, drought, and nutrient imbalance stresses

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

Published: March 18, 2024

In agricultural environments, plants are often exposed to abiotic stresses including temperature extremes, salt stress, drought, and heavy metal soil contamination, which leads significant economic losses worldwide. Especially stress drought pose serious challenges since they induce ionic toxicity, osmotic oxidative in plants. A potential solution can be the application of bacteria Serratia spp. known promote plant growth under normal conditions Thus mini-review aims summarize current knowledge on promotion by (under salinity nutrient deficit) highlight areas for development field. So far, it has been proven that strains exhibit a variety traits contributing enhanced tolerance, such as phytohormone production, ACC deaminase activity, nitrogen fixation, P Zn solubilization, antioxidant properties improvement, modulation gene expression. Nevertheless, further research is needed, especially two subjects: elucidating its mechanisms action at molecular level effects indigenous microbiota and, particularly, rhizosphere. both cases, advisable use omics techniques gain in-depth insights into issues. Additionally, some may phytopathogens, therefore studies rule out this possibility recommended prior field trials. It believed improving said stimulate will increase from genus serve an eco-friendly biofertilizer sustainable agriculture more often.

Language: Английский

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Paenibacillus as a Biocontrol Agent for Fungal Phytopathogens: Is P. polymyxa the Only One Worth Attention?

Microbial Ecology, Journal Year: 2024, Volume and Issue: 87(1)

Published: Oct. 31, 2024

Control of fungal phytopathogens is a significant challenge in modern agriculture. The widespread use chemical fungicides to control these pathogens often leads environmental and food contamination. An eco-friendly alternative that can help reduce reliance on chemicals plant growth-promoting bacteria (PGPB), particularly those the genus Paenibacillus, which appear be highly effective. review aims summarize existing knowledge potential Paenibacillus spp. as biocontrol agents, identify gaps, answer whether other species addition polymyxa, also effective agents. combat through various mechanisms, including production lipopeptides (such fusaricidin, paenimyxin, pelgipeptin), induction systemic resistance (ISR), hydrolytic enzymes (chitinase, cellulase, glucanase), volatile organic compounds. These properties enable strains suppress growth fungi such Fusarium oxysporum, F. solani, Rhizoctonia Botrytis cinerea, or Colletotrichum gloeosporioides. Notably, several P. illinoisensis KJA-424, lentimorbus B-30488, elgii JCK1400, have demonstrated efficacy controlling diseases plants. Importantly, many formulations with already been patented, some are commercially available, but most them contain only polymyxa. Nevertheless, considering data presented this review, we believe from (besides polymyxa) will commercialized used protection future. there still limited information regarding their impact native microbiota, metataxonomic metagenomic perspectives. Expanding area could enhance effectiveness agents containing spp., ensuring safe sustainable biological fungicides.

Language: Английский

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Contribution of poultry farm practice to the structure and composition of bacterial communities in the soil of poultry farms in Lagos, Nigeria

Deleted Journal, Journal Year: 2025, Volume and Issue: 2(1)

Published: Jan. 23, 2025

Language: Английский

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Endophytes unleashed: natural allies for heavy metal bioremediation

Discover Plants., Journal Year: 2025, Volume and Issue: 2(1)

Published: March 11, 2025

Language: Английский

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Sustainable Soil Volatilome: Discrimination of Land Uses Through GC-MS-Identified Volatile Organic Compounds

Separations, Journal Year: 2025, Volume and Issue: 12(4), P. 92 - 92

Published: April 8, 2025

This study investigates soil volatilomics as an innovative approach to assessing the impact of land use on quality. research addresses critical need for sensitive diagnostic tools distinguish subtle biochemical variations in soils influenced by different management practices. Soil samples were collected along a transect Cluj County. Their volatile organic compounds extracted headspace solid-phase microextraction (HS–SPME) followed gas chromatography–mass spectrometry (GC–MS) analysis. A multivariate statistical method was used differentiate volatilome profile. Among 106 detected compounds, oxygenated species dominated across all uses, with highest concentrations forest (77%), grasslands (71%) and agricultural (65%). Principal component analysis revealed distinct clustering patterns, first two components explaining 72.8% total variance (PC1: 41.7%, PC2: 31.1%). Supervised PLS-DA modeling demonstrated robust discrimination, achieving AUC values 0.868 versus comparisons 0.810 both grassland comparisons. The diversity indicated that contained number (64), closely (63), while showed reduced (51). These key findings signatures, exhibiting complexity demonstrating more homogeneous profile, whereas presented high internal variability. results underscore potential profiling indicator effects processes support utility sustainable ecosystem monitoring.

Language: Английский

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Soil Microbiome of Abandoned Plaggic Podzol of Different-Aged Fallow Lands and Native Podzol in South Taiga (Leningrad Region)

Agronomy, Journal Year: 2024, Volume and Issue: 14(3), P. 429 - 429

Published: Feb. 22, 2024

The soil microbiome is composed of various communities that play an important role in the existence ecosystem services and sustainable functioning ecosystems under high anthropogenic loads. transition soils to a fallow state their subsequent transformation lead notable alteration taxonomic composition microbiome, impacting biochemical processes within its fertility levels. object this study comprised different-aged southern taiga vicinity Ban’kovo village, Leningrad region. method comprising high-throughput sequencing 16S rRNA gene fragments using Illumina MiSEQ sequencer was used analyze microbial community. general processing sequences carried out with dada2 (v1.14.1) package. It found morphological organization has significant differences from native podzol. In soils, there are signs leaching expressed accumulation leached mineral particles, which indicates degradation fallow–arable horizon. At same time, decrease content P2O5 K2O increase N-NH4 N-NO3 soil. analysis alpha diversity index values showed highest level community characteristic 40-year-old soil, decreased increasing time state, lowest observed According beta index, correlation between physicochemical characteristics revealed, formation functional specialization studied communities. As result it most represented belong Nitrosomonadaceae (Pseudomonadota), Mycobacterium (Actinobacteria), Nitrospira (Nitrospirota), Luteolibacter (Verrucomicrobiota). duration post-agrogenic leading factor influencing changes communities; so, were oligotrophic observed.

Language: Английский

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The soil bacterial communities show resilience in composition and function for 30 years of pine self-reforestation on agricultural lands in Western Russia

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 202, P. 105570 - 105570

Published: Aug. 7, 2024

Language: Английский

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Arsenic-contaminated soil remediation with hyperthermophilic compost: Effects on arsenic bioavailability, soil fertility and bacterial community

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 370, P. 122774 - 122774

Published: Oct. 9, 2024

Language: Английский

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Assessing the influence of diverse phosphorus sources on bacterial communities and the abundance of phosphorus cycle genes in acidic paddy soils

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

Published: Oct. 10, 2024

The impact of chemical fertilizers on soil microbial communities is well acknowledged. This study assesses the influence various phosphorus sources bacterial composition, abundance, and Phosphorus Cycle Gene Abundance. Three (natural phosphate rock, triple super (TSP), fertilizer NPK) were field tested following two rice cultivation cycles. Soil samples subsequently collected analyzed for groups cycle genes. Results indicated that community composition remained consistent, comprising five main phyla: Firmicutes, Actinobacteria, Proteobacteria, Halobacterota, Chloroflexia, regardless type. NPK significantly reduced relative abundance Chloroflexia by 19% Firmicutes 16.4%, while increasing Actinobacteria Proteobacteria 27.5 58.8%, respectively. TSP increased 27.1% Halobacterota 24.8%, but 8.6%, 12.6%, 0.6%. Phosphate rock application resulted in reductions 27.1%, 22.9%, 6.2%, alongside increases 46.6% 23.8%. Combined TSP, NPK, led to (24-40%) (13-39%), decreases (5.2-22%) (6-12.3%) compared control (T0). While different did not alter genes, they modulate their abundance. affect ppK genes (57-59%) gcd (100 69%), 3-phytase (74 34%), appA (91 63%), phoD (83 67%). 27 15%, respectively, 19%. decreased 42 40%, 34 56%, (49 (10 0%), (27 6%), (72 100%). Among sources, natural was best, causing moderate changes supporting balanced activity. These findings highlight complex interactions between communities, underscoring need tailored fertilization strategies maintain health optimize agricultural productivity.

Language: Английский

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Characterizing Bacterial Communities in Agroecosystems of the UNESCO Global Geopark Mixteca Alta, Oaxaca

Agriculture, Journal Year: 2024, Volume and Issue: 14(12), P. 2180 - 2180

Published: Nov. 29, 2024

This study explores the diversity and functions of microbiomes in ancient agroecosystems Mixteca Alta Geopark (MAG). Microbiome analysis could provide insights into soil bacterial communities their role enhancing fertility, nutrient cycling, plant growth. We used 16S rRNA gene amplicon sequencing to identify key features composition microbiota Lama-bordo, Valley, Terrace MAG. Analysis agroecosystem soils revealed 21 phyla, with Acidobacteria, Proteobacteria, Actinobacteria, Chloroflexi dominating. These microbial contribute health, carbon disease suppression. The identified specific phylogroups metabolic pathways associated nutrient-rich environments like Lama-bordo nutrient-poor, sandy Terrace. Soils from Valley were grouped due microbiome similarity despite geographic separation, whereas differed. Nutrient-rich host copiotrophic bacteria, while nutrient-poor favor oligotrophic species Acidobacteria. Functional reveals distinct pathways, including antibiotic biosynthesis (streptomycin, vancomycin) suggesting a resistance, amino acid indicating active nitrogen vitamin B5 lipoic contributing energy metabolism antioxidant functions.

Language: Английский

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