Bacillusspecies in soil as a natural resource for plant health and nutrition

Journal of Applied Microbiology, Journal Year: 2019, Volume and Issue: 128(6), P. 1583 - 1594

Published: Nov. 9, 2019

The genus Bacillus is one of the predominant bacterial genera found in soil, and several species this have been reported from diverse ecological niches. Endowed with tremendous genetic metabolic diversity, spp. serve multiple functions soil ecosystem nutrient cycling to conferring stress tolerance plants. Members are known beneficial traits which help plants directly or indirectly through acquisition nutrients, overall improvement growth by production phytohormones, protection pathogens other abiotic stressors. This functionally versatile most commercially exploited bacteria agro‐biotechnology industry. Still its potential has not realized sufficiently requires an emphasis towards translating relevant technologies laboratory land for benefit mankind.

Language: Английский

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The Significance of Bacillus spp. in Disease Suppression and Growth Promotion of Field and Vegetable Crops

Microorganisms, Journal Year: 2020, Volume and Issue: 8(7), P. 1037 - 1037

Published: July 13, 2020

Bacillus spp. produce a variety of compounds involved in the biocontrol plant pathogens and promotion growth, which makes them potential candidates for most agricultural biotechnological applications. Bacilli exhibit antagonistic activity by excreting extracellular metabolites such as antibiotics, cell wall hydrolases, siderophores. Additionally, improve response to pathogen attack triggering induced systemic resistance (ISR). Besides being promising agents, promote growth via nitrogen fixation, phosphate solubilization, phytohormone production. Antagonistic growth-promoting strains might be useful formulating new preparations. Numerous studies wide range species revealed steady increase number identified agents promoters. Among different mechanisms action, it remains unclear individual or combined traits could used predictors selection best crop productivity improvement. Due numerous factors that influence successful application spp., is necessary understand how function biological control promotion, distinctly define contribute their more efficient use field.

Language: Английский

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Plant-associated Bacillus and Pseudomonas antimicrobial activities in plant disease suppression via biological control mechanisms - A review

Physiological and Molecular Plant Pathology, Journal Year: 2021, Volume and Issue: 117, P. 101754 - 101754

Published: Nov. 26, 2021

Language: Английский

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Antimicrobial Bacillus: Metabolites and Their Mode of Action

Antibiotics, Journal Year: 2022, Volume and Issue: 11(1), P. 88 - 88

Published: Jan. 12, 2022

The agricultural industry utilizes antibiotic growth promoters to promote livestock and health. However, the World Health Organization has raised concerns over ongoing spread of resistance transmission in populace, leading its subsequent ban several countries, especially European Union. These restrictions have translated into an increase pathogenic outbreaks industry, highlighting need for economically viable, non-toxic, renewable alternative antibiotics livestock. Probiotics inhibit pathogen growth, a beneficial microbiota, regulate immune response host, enhance feed conversion nutrients, form biofilms that block further infection. Commonly used lactic acid bacteria probiotics are vulnerable harsh conditions upper gastrointestinal system, novel research using spore-forming from genus Bacillus. exact mechanisms behind Bacillus remain unexplored. This review tackles this issue, by reporting antimicrobial compounds produced strains, their proposed action, any gaps mechanism studies these compounds. Lastly, paper explores omics approaches clarify probiotics.

Language: Английский

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Biosynthetic gene cluster profiling predicts the positive association between antagonism and phylogeny in Bacillus

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Feb. 23, 2022

Understanding the driving forces and intrinsic mechanisms of microbial competition is a fundamental question in ecology. Despite well-established negative correlation between exploitation phylogenetic distance, process interference that exemplified by antagonism remains controversial. Here, we studied genus Bacillus, commonly recognized producer multifarious antibiotics, to explore role patterns biosynthetic gene clusters (BGCs) mediating relationship phylogeny. Comparative genomic analysis revealed positive association BGC distance distance. Antagonistic tests demonstrated inhibition phenotype positively correlated with both predicted especially for antagonistic strains possessing abundant BGCs. Mutant-based verification showed was dependent on BGCs specifically harbored strain. These findings highlight BGC-phylogeny coherence regulates congeneric which deepens our understanding force mechanism interactions.

Language: Английский

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Biocontrol of plant diseases by Bacillus spp.

Physiological and Molecular Plant Pathology, Journal Year: 2023, Volume and Issue: 126, P. 102048 - 102048

Published: May 17, 2023

Language: Английский

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Classification and Multifaceted Potential of Secondary Metabolites Produced by Bacillus subtilis Group: A Comprehensive Review

Molecules, Journal Year: 2023, Volume and Issue: 28(3), P. 927 - 927

Published: Jan. 17, 2023

Despite their remarkable biosynthetic potential, Bacillus subtilis have been widely overlooked. However, capability to withstand harsh conditions (extreme temperature, Ultraviolet (UV) and γ-radiation, dehydration) the promiscuous metabolites they synthesize created increased commercial interest in them as a therapeutic agent, food preservative, plant-pathogen control agent. Nevertheless, commercial-scale availability of these is constrained due challenges accessibility via synthesis low fermentation yields. In context this rising interest, we comprehensively visualized antimicrobial peptides produced by B. highlighted prospective applications various industries. Moreover, proposed classified group based on pathways chemical structures. The pathway, bioactivity, structure are discussed detail for each class. We believe that review will spark renewed often disregarded its capabilities.

Language: Английский

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Plant Growth Promotion Using Bacillus cereus

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(11), P. 9759 - 9759

Published: June 5, 2023

Plant growth-promoting bacteria (PGPB) appear to be a sensible competitor conventional fertilization, including mineral fertilizers and chemical plant protection products. Undoubtedly, one of the most interesting exhibiting plant-stimulating traits is, more widely known as pathogen, Bacillus cereus. To date, several environmentally safe strains B. cereus have been isolated described, WSE01, MEN8, YL6, SA1, ALT1, ERBP, GGBSTD1, AK1, AR156, C1L, T4S. These studied under growth chamber, greenhouse, field conditions shown many significant traits, indole-3-acetic acid (IAA) aminocyclopropane-1-carboxylic (ACC) deaminase production or phosphate solubilization, which allows direct promotion. It includes an increase in biometrics element content (e.g., N, P, K), biologically active substances activity, e.g., antioxidant enzymes total soluble sugar. Hence, has supported species such soybean, maize, rice, wheat. Importantly, some can also promote abiotic stresses, drought, salinity, heavy metal pollution. In addition, produced extracellular antibiotic lipopeptides triggered induced systemic resistance, indirect stimulation growth. As far biocontrol is concerned, these PGPB suppress development agriculturally important phytopathogens, bacterial phytopathogens Pseudomonas syringae, Pectobacterium carotovorum, Ralstonia solanacearum), fungal Fusarium oxysporum, Botrytis cinerea, Rhizoctonia solani), other phytopathogenic organisms Meloidogyne incognita (Nematoda) Plasmodiophora brassicae (Protozoa)). conclusion, it should noted that there are still few studies on effectiveness conditions, particularly, lack comprehensive analyses comparing PGP effects fertilizers, reduced favor decreasing use fertilizers. worth mentioning very impact indigenous microbiota its persistence after application soil. Further would help understand interactions between microbiota, subsequently contributing increasing promoting

Language: Английский

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Should the biofilm mode of life be taken into consideration for microbial biocontrol agents?

Microbial Biotechnology, Journal Year: 2017, Volume and Issue: 10(4), P. 719 - 734

Published: Feb. 16, 2017

Summary Almost one‐third of crop yields are lost every year due to microbial alterations and diseases. The main control strategy limit these losses is the use an array chemicals active against spoilage unwanted pathogenic microorganisms. Their massive has led extensive environmental pollution, human poisoning a variety An emerging alternative this chemical approach biocontrol agents. Biopesticides have been used with success in several fields, but better understanding their mode action necessary activity increase use. Very few studies considered that biofilms preferred life microorganisms target agricultural biotopes. Increasing evidence shows spatial organization communities on surfaces may drive important bioprotection mechanisms. aim review summarize biofilm formation by agents crops discuss how surface‐associated influence biology interactions other host and, finally, overall beneficial activity.

Language: Английский

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Probiotics and competitive exclusion of pathogens in shrimp aquaculture

Reviews in Aquaculture, Journal Year: 2020, Volume and Issue: 13(1), P. 324 - 352

Published: July 24, 2020

Abstract Probiotics, live microorganisms that, when administered in adequate amounts, confer a health benefit on the host, offer an alternative to antibiotics and have become popular among shrimp farmers for use regulation of pond water quality, promotion growth prevention disease. Most probiotics are selected testing based their ability competitively exclude pathogens through bacterial antagonism assays, although mechanisms pathogen exclusion rarely investigated. In this review, we provide comprehensive overview competitive (interference exploitation competition) by species screened subsequently identified as inhibit pathogenic bacteria vitro . We show that current methods used identify potential preferentially select interference‐based may overlook many be considered probiotic. Furthermore, efficiency probiotic vivo improved considering suitability strategies farming conditions. highlight important limitations future directions screening identification aquaculture, aid development effective sustainable microbial management strategies.

Language: Английский

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