Plant Growth-Promoting Rhizobacteria Microbial Fertilizer Changes Soils’ Microbial Structure and Promotes Healthy Growth of Cigar Tobacco Plants

Agronomy, Journal Year: 2023, Volume and Issue: 13(12), P. 2895 - 2895

Published: Nov. 24, 2023

Cigar tobacco, an economically important cash crop, holds a substantial role within the fiscal framework of national economy. This however, is characterized by marked vulnerability to pathogenic bacteria, culminating in consequential financial loss throughout its cultivation phase. Plant growth-promoting rhizobacteria (PGPR), salient class advantageous bacterial flora, are recognized for their ability enhance plant growth, inhibit deleterious pathogens, and synthesize compounds that either have direct impact on morphogenesis or activate otherwise ineffectual soil components. Through these mechanisms, PGPR augments soil’s nutritional profile, making it more receptive uptake, thus stimulating vegetative growth. The Bacillus subtilis microbial fertilizer, prime exemplar PGPR, demonstrates not only pathogen-suppressive effect but also induction plant’s innate disease resistance mechanism. bolsters resilience fosters probiotic milieu soil, catalyzes formation agglomerate structures, all which contribute enhanced fertility moisture retention, increased friability, facilitation root expansion. In this study, controlled pot experiment was conducted elucidate mechanism through inter-root probiotics rehabilitate ecosystem foster crop growth cigar tobacco seedlings afflicted with black rot bacteria. Four treatments were instituted, including CK: blank control (no application); A: (Bacillus fertilizer); B: both (the fertilizer together pathogen); C: pathogen). Our empirical findings delineate presence bacteria deteriorates environment, thereby constraining transmutation nutrients subsequent assimilation plants. severely impedes development By contrast, application modified community structure, exhibiting antagonistic interaction indigenous species. Relative CK treatment, found invigorate catalytic conversion enzymes, incrementing peroxidase, acid phosphatase, urease, sucrase activity 12.98%, 19.55%, 13.57%, 17.91%, respectively. Meanwhile, observed ameliorate physicochemical attributes, enhancing available content nitrogen, phosphorus, potassium 4.52%, 6.52%, 15.14%, respectively, along augmentation organic matter 17.33%. fortification properties enrichment fertility, as result application, translated into robust 57.23% enhancement vigor 60.47% extension length seedlings. These amendments subsequently fueled uptick parameters plants, increases height, stem girth, leaf count, maximal dimensions, fresh dry weight tobacco.

Language: Английский

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PGPR consortia promote soil quality and functioning in barley rhizosphere under different levels of drought stress

Deleted Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Autotoxicity of Endogenous Organic Acid Stress in Two Ganoderma lucidum Cultivars

Molecules, Journal Year: 2022, Volume and Issue: 27(19), P. 6734 - 6734

Published: Oct. 9, 2022

Ganoderma lucidum has been used as a rare medical mushroom for centuries in China, due to its health-promoting properties. Successive cropping obstacles are common the cultivation of G. lucidum, although remaining nutrients germ substrate sufficient second fruiting. Here, we aimed study metabolite profile via nontargeted metabonomic technology. Metabonomic data revealed that organic acids played an important role which is accordance with pH decrease substrate. A Kyoto encyclopedia genes and genomes (KEGG) enrichment analysis indicated most differential participated metabolic pathways. Five were all significantly upregulated by two MS high energy (MSE) modes cultivars, among 5-hydroxy-2-oxo-4-ureido-2,5-dihydro-1H-imidazole-5-carboxylic acid also involved purine metabolism regulation microbial diverse environments. Taken together, this work illustrated stress generated formed autotoxicity feedback, resulted obstacles. Determining cause will promote utilization rate fungus realize sustainable use resource.

Language: Английский

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Role of vermicompost and biochar in soil quality improvement by promoting Bupleurum falcatum L. nutrient absorption

Soil Use and Management, Journal Year: 2023, Volume and Issue: 39(4), P. 1600 - 1617

Published: Aug. 7, 2023

Abstract Bupleurum falcatum L. has gained attention due to its medicinal value in root. B. was continuously cultivated and intensively chemically fertilized order attain a high yield, which reduced the soil quality caused continuous cropping problems. Thus, there is significant impact on S. baicalensis yield quality. To solve this problem, with 0 or 3 years (0‐ 3‐year soil) several organic materials, are Bacillus subtilis , mucilaginosus humic acid fertilizer, biochar, vermicompost. The experiment examined effectiveness of 's growth nutrient uptake under various materials. It shown that materials improved fertility promoted . combination vermicompost biochar had better improvement effect. increased nutrients by 23.8%–73.3% (0‐year 24.6%–71.1% (3‐year soil), respectively. In two types soil, both microbial number enzyme activity substantially increased. shoot root biomass 74.8%–84.5% (without biochar) 41.8%–71.1% (with soil. Vermicompost also significantly development falcatum. length 13.3%–66.7%, diameter 38.6%–84.8%, volume 8.4%–61.3%, specific varied −171.9% 3.1% when compared control. (N, P, K) concentrations shoots roots changed from −3.9% 67.2% 1.4% 53.5%. All findings demonstrated long‐term obstacles, deteriorated quality, inhibited growth. Applying fertilizers, such as can help improve increase nutrients, promote absorption eliminate obstacles.

Language: Английский

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Enhancing tomato disease resistance through endogenous antifungal proteins and introduced nematode‐targeting dsRNA of biocontrol agent Bacillus velezensisHS‐3

Pest Management Science, Journal Year: 2024, Volume and Issue: 80(8), P. 3839 - 3851

Published: March 21, 2024

As a type of biological control agent (BCA), Bacillus velezensis possesses the efficacy inhibiting pathogenic microorganisms, promoting plant growth, and overcoming continuous cropping obstacles (CCOs). However, there is limited reporting on optimization cultivation conditions for such biocontrol agents their role as double-stranded RNA (dsRNA) delivery vectors.

Language: Английский

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The Implementation of Response Surface Methodology and Artificial Neural Networks to Find the Best Germination Conditions for Lycopersicon esculetum Based on Its Phenological Development in a Greenhouse

Agriculture, Journal Year: 2023, Volume and Issue: 13(12), P. 2175 - 2175

Published: Nov. 21, 2023

The incorporation of biodegraded substrates during the germination horticultural crops has shown favorable responses in different crops; however, most these studies evaluate their effect only first days seedling life, and do not follow up on production process under greenhouse or open field conditions. objective this study was to phenological development Lycopersicon esculetum (tomato) seedlings greenhouses that were germinated with substrate mixed peat moss. To find best plant performance condition determine whether allows tomato plants be obtained conditions for production, response surface methodology (RSM) artificial neural network (ANN) used. Three models three developed analyze growth, leaf length width. results show height presented statistically significant differences among treatments, an initial average 5.3 cm. leaves at transplantation different, maintaining a 2.4, width measured 1.8 RSM ANN allowed estimation optimal value adequate amount degraded germinate reduce use coefficient determination (r2) indicates ANNs better data fit (r2 > 0.99) predict experimental maximize variables; sense, 100% showed development, which suggests its as alternative

Language: Английский

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Effect of Biofertilizers on Broccoli Yield and Soil Quality Indicators

Horticulturae, Journal Year: 2023, Volume and Issue: 10(1), P. 42 - 42

Published: Dec. 31, 2023

High rates of fertilizer applications potentially have significant environmental consequences, such as soil and water contamination biodiversity loss. This study aimed to compare the use biofertilizers inorganic fertilizers in a broccoli crop determine their impact on microorganism abundance, microbial community structure, functional gene diversity, yield, greenhouse gas emissions. Four different fertilization treatments were designed: (i) applied at rate cover nutritional demands (F100); (ii) 50% added F100 (F50); (iii) F50 + application formulation various bacteria (BA); (iv) non-mycorrhizal fungi (BA FU). The results showed that reduced addition both biofertilizer products had no effect nutrients, population, activity, or yield when compared conventional fertilization. Thus, inoculants ineffective enhancing abundance there changes GHG emissions yields. Nonetheless, was positively related total N, CO2 emissions, confirming positive production. can help reduce mineral with negative yield.

Language: Английский

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Metagenomic study of the tomato rhizosphere soil microbiome: current state and prospect

AIMS Geosciences, Journal Year: 2023, Volume and Issue: 9(2), P. 330 - 356

Published: Jan. 1, 2023

<abstract> <p>Plant microbiota has a variety of impacts on the plant. Some are beneficial, while some pathogenic. This study discusses general metagenomics procedures in processing plant-related metagenomes and focuses tomato plants' rhizosphere species. Metagenomics, associated with eventual DNA, is isolated from environmental samples thus permits absolute microbial population identification. Meanwhile, genetic content DNA sample obtained allows functional capability identification biochemical procedure many microorganisms. review reveals recent utilization application potential Next-Generation Sequencing (NGS) agriculture. It involves plant-associated microbiota, factors driving their diversity, plant metagenome to tackle current challenges experienced food security. provides newest methods for rapidly identifying communities inhabiting soil plants.</p> </abstract>

Language: Английский

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Enhancing nutrient uptake and grapefruit (Citrus paradisi) growth through soil application of beneficial bacteria (Bacillus spp.)

Frontiers in Horticulture, Journal Year: 2024, Volume and Issue: 3

Published: May 3, 2024

The term plant growth-promoting rhizobacteria (PGPR) refers to a root-associated bacteria that possesses several benefits for soil and the plant. increasing demand sustainable food production necessitates shift towards agricultural practices mitigate adverse environmental impacts. Excessive use of chemical fertilizers pesticides has raised concerns, prompting surge interest in harnessing potential beneficial microorganisms, particularly rhizobacteria. This study explores impact inoculation with PGPR treatments on grapefruit seedlings, including commercial strain Bacillus velezensis , fresh inoculum amyloliquefaciens mixture three selected citrus endophytic spp. isolates, inorganic fertilizers, combinations thereof. aim was test their ability enhance growth nutrient uptake reducing input fertilization. Results indicated combination fertilization significantly improved availability enhanced growth, surpassing both negative (water) positive (inorganic fertilization) controls. Shoot root system biomass showed significant increases from plus compared other treatments. These findings provide insights into management methods can reduce inputs while promoting productivity. demonstrated seedlings highlight promising approach future research applications cultivation.

Language: Английский

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The Synergistic Effect of Plant Growth-Promoting Rhizobacteria and Spent Mushroom Substrate Improves Ginseng Quality and Rhizosphere Nutrients

Agriculture, Journal Year: 2024, Volume and Issue: 14(11), P. 1880 - 1880

Published: Oct. 24, 2024

The ginseng industry’s reliance on chemicals for fertilizer and pesticides has adversely affected the environment decreased quality of ginseng; therefore, microbial inoculum is an effective way to restore damaged soil in fields. To investigate effects plant growth-promoting rhizobacteria (PGPR) spent mushroom substrate (SMS) ginseng, high throughput sequencing was performed examine community structures rhizosphere soil. All treatments significantly increased nutrient, enzyme activity, biomass compared control (p < 0.05). combination PGPR SMS notably enhanced activities: urease (7.29%), sucrase (29.76%), acid phosphatase (13.24%), amylase (38.25%) had different diversity. Significantly, diversity by increasing abundance beneficial bacteria such as Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium Plectosphaerella, meanwhile suppressing harmful Klebsiella. relative Fusarium reduced some extent with application alone. organic matter, available potassium, phosphorus, alkaline nitrogen, key factors, influenced structures. Overall, positively impacted quality.

Language: Английский

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