The Effect of Selected Phosphate-Solubilizing Bacteria on the Growth of Cotton Plants in Salinized Farmlands

Microorganisms, Journal Year: 2025, Volume and Issue: 13(5), P. 1075 - 1075

Published: May 5, 2025

The utilization rate of phosphorus fertilizer is low in Xinjiang, China, due to the fact that easily fixed by widely distributed lime soil, leading limited contribution crop yield and a decline quality. Phosphate-soluble bacteria can convert insoluble phosphates soil into soluble phosphates, playing an important role circulation plant growth. In this study, two with strong phosphate-solubilizing ability, Enterobacter hormaechei (P1) Bacillus atrophaeus (P2), were selected from severely salinized soils China. taxonomic status strains was determined analyzing colony morphology 16S rRNA gene sequence similarity. Then, content organic acids activity acid phosphatase phytase P1 P2 fermentation broths measured. Finally, field experiments conducted 20 April–2 October 2023 Wulanwusu, analyze effects bacterial agents (P1, P2, P3 (P1 + P2)) on physicochemical properties, microbial diversity, cotton yield. results showed both could significantly solubilize produce indole-3-acetic (IAA), lactic acid, tartaric acid. under fertilization, P1, treatments increased 10.77%, 8.48%, 14.00%, respectively, compared no agent treatment (CK) (p < 0.05). addition, application also available nutrients abundances Acidobacteria, Bacteroidetes, Fusarium, Verrucobacteria CK. summary, inoculating promote growth formation increasing altering communities. This study will provide basis for efficient resources sustainable agricultural development.

Language: Английский

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Biofilms and Their Multidimensional Impacts: From Combating Industrial and Clinical Risks to Unlocking Opportunities in Sustainable Agriculture

IntechOpen eBooks, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Biofilms are microbial communities embedded in a matrix of extracellular polymeric substances (EPS) that irreversibly adhere to surfaces natural, industrial, and clinical environments. Their formation involves dynamic, multi-step process influenced by interactions, EPS production, surface properties. provide microorganisms with protection against environmental stresses antimicrobial agents, creating significant challenges healthcare industry. In industrial settings, Microbial Induced Corrosion (MIC) is major issue, biofilms contributing the degradation metallic nonmetallic through mechanisms like electrochemical cell production corrosive metabolites. Sulfate-reducing bacteria (SRB) other microbes accelerate this process, impacting lifespan pipelines, marine structures, equipment. Clinically, biofilm-associated infections constitute 70% all infections, resisting antibiotics immune responses. These complicate treatment, impair medical implants, linked chronic conditions cystic fibrosis diabetic foot ulcers. Emerging diagnostic tools, such as biosensors, treatments nanoparticles, conjugated antimicrobials, phage therapy, offer promising solutions. agriculture, enhance virulence pathogens but also support beneficial effects. Plant Growth Promoting Bacteria (PGPB) within help plants combat biotic abiotic while promoting growth metabolite production.

Language: Английский

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Comprehensive Assessment of Soil Heavy Metal Contamination in Agricultural and Protected Areas: A Case Study from Iași County, Romania

Agriculture, Journal Year: 2025, Volume and Issue: 15(10), P. 1070 - 1070

Published: May 15, 2025

Soil contamination with heavy metals poses a significant risk to human health and ecological systems through multiple exposure pathways: direct ingestion of crops, dermal contact polluted soil, bioaccumulation within the food chain. This study analyses eleven composite soils, each collected in triplicate from different sites Iași County, four which are designated Natura 2000 protected areas (Mârzești Forest, Plopi Lake—Belcești, Moldova Delta, Valea lui David). The assessment includes measurements soil humidity by gravimetric method, pH, organic matter content, examined relation metal concentrations due their well-established interdependencies. For determination, energy-dispersive X-ray spectroscopy (EDS) using an EDAX system (AMETEK Inc., Berwyn, PA, USA) fluorescence spectrometry (XRFS) Vanta 4 analyser (Olympus, Waltham, MA, were employed. Additionally, scanning electron microscopy (SEM) Quanta 450 microscope (FEI, Thermo Scientific, Hillsboro, OR, was used primarily for informational purposes provide broader perspective. In case chromium, 45.45% samples exceeded permissible levels, ranging 106 mg/kg 186 mg/kg, highest value being nearly twice alert threshold. Notably, not all maintain contaminant levels safe limits. sample Mârzești Forest site revealed considerably raised mercury, arsenic, lead, exceeding thresholds (1 mg/kg—mercury, 15 mg/kg—arsenic, 50 mg/kg—lead) established Order no. 756/1997 issued Minister Water, Forests, Environmental Protection Romania. On other hand, Podu Iloaiei, area intensive agricultural activity, shows mercury cadmium, highlighting anthropogenic pollution. findings this expected raise public awareness regarding pollution particularly densely populated regions zones. Moreover, results scientific basis policymakers relevant authorities implement targeted measures manage ensure long-term environmental sustainability.

Language: Английский

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Efficacy of Erwinia amylovora and Xanthomonas campestris pv campestris phages to control fire blight and black rot in vivo

Microbiology Spectrum, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

ABSTRACT Phytopathogens, such as Erwinia amylovora and Xanthomonas campestris , pose significant threats to agriculture, leading substantial economic losses. Traditional chemical pesticides can harm soil fertility, contaminate water, impact non-target organisms natural predators pollinators, highlighting the need for sustainable pest control methods. This study explores use of bacteriophages biocontrol agents against E. which causes fire blight, X. pv. responsible black rot in cruciferous vegetables. Bacteriophages were isolated from urban wastewater tested their lytic activity these pathogens. Three virulent phages identified: ɸEF1 ɸEF2 ɸXF1 . Genetic analysis confirmed absence known lysogeny-related genes, indicating that are ideal candidates applications. In vitro assays demonstrated bacterial population reductions. Specifically, killed 92.1% at a multiplicity infection (MOI) 1 after 3 h, while reduced by 98.1%. When combined 1:1 ratio, two populations 99.7%, no regrowth resistant cells was observed, not case when applied individually. 99.9% an MOI 5 h. vivo experiments using pears kohlrabi models further validated phage effectiveness. Treated showed blight symptoms, plants exhibited markedly less necrosis compared untreated controls. IMPORTANCE new have been isolated: targeting one All able rapidly reduce corresponding phytopathogens alleviate disease symptoms plant models. These findings highlight potential managing diseases, offering alternative traditional treatments.

Language: Английский

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