Microbial Biopesticides: Diversity, Scope, and Mechanisms Involved in Plant Disease Control

Diversity, Journal Year: 2023, Volume and Issue: 15(3), P. 457 - 457

Published: March 19, 2023

Food losses, defined as a reduction in the quantity and quality of food during production storage, impact safety security. Losses caused by plant pathogens are among most significant. Chemical pesticides have been extensively used to prevent microbial diseases. Their toxicity reduced efficacy, however, encouraged investigators develop alternatives. Alternatives based on biopesticides tend be safer more environmentally benign than conventional pesticides. In recent years, formulations progressively increased number diversity attracted commercial interest. Understanding mechanisms which control disease is fundamental achieving optimal control. Biocontrol can divided into two main categories: those related ability inhibit or their virulence factors, that enhance host fitness induce resistance. Here, first type strategy reviewed, directly mediated physical contact between biocontrol agents indirectly exposure pathogen antimicrobial microbial-inhibiting compounds produced antagonist. Mechanisms involving include mycophagy, destruction pathogenic bacteria bacteriophages predation, inhibition topical applications specific dsRNA. Indirect do not involve direct with compounds, competition, factor suppression quorum quenching. These topics reviewed discussed.

Language: Английский

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Biological Guardians: Unveiling Microbial Solutions to Combat Cannabis sativa Fungal Pathogens

Stresses, Journal Year: 2025, Volume and Issue: 5(1), P. 16 - 16

Published: Feb. 17, 2025

Cannabis (Cannabis sativa L.) is one of the earliest cultivated crops and valued for its medicinal compounds, food, fibre, bioactive secondary metabolites. The rapid expansion cannabis industry has surpassed development production system knowledge. scientific community currently focuses on optimising agronomic environmental factors to enhance yield quality. However, cultivators face significant challenges from severe pathogens, with limited effective control options. principal diseases include root rot, wilt, bud powdery mildew, stunt disease, microorganisms that reduce post-harvest Sustainable management strategies involve utilising clean planting stocks, modifying conditions, implementing sanitation, applying fungal bacterial biological agents, drawing decades research other crops. Plant–microbe interactions can promote growth regulate metabolite production. This review examines recent literature pathogen in indoor using biocontrol agents. Specific morphological, biochemical, characteristics hinder implementation cannabis. Subsequent investigations should focus elucidating plant–microbe essential effectiveness methodologies cultivation systems.

Language: Английский

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Unlocking the potential of ecofriendly guardians for biological control of plant diseases, crop protection and production in sustainable agriculture

3 Biotech, Journal Year: 2025, Volume and Issue: 15(4)

Published: March 9, 2025

Language: Английский

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Plant and microbial features governing an endophytic lifestyle

Current Opinion in Plant Biology, Journal Year: 2023, Volume and Issue: 76, P. 102483 - 102483

Published: Nov. 5, 2023

Beneficial microorganisms colonizing internal plant tissues, the endophytes, support their host through growth promotion, pathogen protection, and abiotic stress alleviation. Their efficient application in agriculture requires understanding of molecular mechanisms environmental conditions that facilitate planta accommodation. Accumulating evidence reveals commensal employ similar colonization strategies as pathogenic counterparts. Fine-tuning immune response, motility, metabolic crosstalk accounts for differentiation. For a holistic perspective, experiments with microbial collections comprehensive genome data exploration are crucial. This review describes most recent findings on factors involved endophytic processes, focusing bacteria fungi, discusses required methodological approaches to unravel relevance within community context.

Language: Английский

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Antimicrobial metabolites produced by the plant growth-promoting rhizobacteria (PGPR): Bacillus and Pseudomonas

Advanced Agrochem, Journal Year: 2024, Volume and Issue: 3(3), P. 206 - 221

Published: July 25, 2024

Plant growth-promoting rhizobacteria (PGPR) such as Bacillus and Pseudomonas have drawn broad attention interest due to their agricultural benefits. One of the major benefits PGPR lies at biocontrol capabilities against various plant pathogens. The capability is closely related its producing kinds antimicrobial substances. Major secondary metabolites secreted by include non-ribosomal lipopeptides (NRLPs), polyketides, ribosomal peptides, phenazines, pyrrolnitrins, etc. This review focuses on produced including classifications, structures, mechanisms action genetic regulations. We also discussed applications in provided insights into future development improved strains using synthetic biology approaches.

Language: Английский

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Understanding bud rot development, caused by Botrytis cinerea, on cannabis (Cannabis sativa L.) plants grown under greenhouse conditions

Botany, Journal Year: 2023, Volume and Issue: 101(7), P. 200 - 231

Published: May 24, 2023

Botrytis cinerea is a widespread necrotrophic plant pathogen that causes diseases on >1000 species, including vegetables and ornamental greenhouse crops. On cannabis ( Cannabis sativ L.), the responsible for causing “bud rot”, major disease affecting inflorescences (compound flowers), as well seedling damping-off leaf blight under certain conditions. During cultivation, can destroy rapidly optimal relative humidity conditions (>70%) moderate temperatures (17–24 °C). Little currently known about host–pathogen interactions of cannabis. Information gleaned from other hosts provide valuable insights comparative purposes to understand development, epidemiology, pathogenicity This review describes pathogenesis host responses infection assesses potential mechanisms involved in resistance. The effects microclimatic environmental strategies early detection using prediction models, application biological control agents prevent development are discussed. Other management approaches reduce impact bud rot also reviewed. Numerous opportunities conducting additional research better cannabis– interaction identified.

Language: Английский

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Prospects of Pseudomonas in Microbial Fuel, Bioremediation, and Sustainability

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

Published: Aug. 9, 2024

Microbial applications in agriculture and industry have gained significant attention due to their potential address environmental challenges promote sustainable development. Among these, the genus Pseudomonas stands out as a promising candidate for various biotechnological uses, thanks its metabolic flexibility, resilience, adaptability diverse environments. This review provides comprehensive overview of current state future prospects microbial fuel production, bioremediation, development, focusing on pivotal role species. We emphasize importance renewable energy source discuss recent advancements enhancing biofuel generation using strains. Additionally, we explore critical bioremediation processes, highlighting ability degrade wide spectrum pollutants, including hydrocarbons, pesticides, heavy metals, thereby reducing contamination. Despite progress, several remain. These include refining strains optimal process efficiency addressing ecological considerations. Nonetheless, capabilities offer avenues innovative solutions pressing issues, supporting transition more future.

Language: Английский

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Plant communication with rhizosphere microbes can be revealed by understanding microbial functional gene composition

Microbiological Research, Journal Year: 2024, Volume and Issue: 284, P. 127726 - 127726

Published: April 16, 2024

Language: Английский

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GacA regulates symbiosis and mediates lifestyle transitions in Pseudomonas

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

ABSTRACT Through horizontal gene transfer, closely related bacterial strains have assimilated distinct sets of genes, resulting in significantly varied lifestyles. However, it is not clear how are able to properly regulate horizontally transferred virulence genes. We hypothesized that may use components the core genome diverse acquired To investigate bacteria assimilate and activate DNA, we used a model Pseudomonas fluorescens subspecies brassicacearum strains, N2E2 N2C3, which exhibit contrasting lifestyles on plant Arabidopsis. P. strain commensal contains genes encode biosynthetic enzymes for anti-fungal compound 2,4-Diacetylphloroglucinol (DAPG). In contrast, N2C3 lacks DAPG biosynthesis has gained pathogenic island encoding syringomycin (SYR)-and syringopeptin (SYP)-like toxins from pathogen syringae. This causes transition lifestyle plant-protective N2C3. found share highly conserved two-component system GacA/S, known regulator SYR/SYP. Using knockout mutations, ΔgacA mutation resulted loss expression SYR/SYP returned lifestyle. Our study further explored conservation regulatory control across by demonstrating GacA both distant could functionally complement one another genus. IMPORTANCE Emerging pathogens represent significant threat humans, agriculture, natural ecosystems. Bacterial transfer aids acquisition novel facilitate adaptation new environments. work shows role orchestrating changes necessary transitions facilitated HGT. These findings suggest GacA/S plays key mediating symbiotic It provides insights into mechanisms drive emergence highlights potential targets managing threats health.

Language: Английский

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Effect of the bacterial pathogen Pseudomonas protegens Pf-5 on the immune response of larvae of the black soldier fly, Hermetia illucens L.

Journal of Invertebrate Pathology, Journal Year: 2025, Volume and Issue: 209, P. 108272 - 108272

Published: Jan. 31, 2025

The larvae of the black soldier fly (BSFL), Hermetia illucens L. (Diptera: Stratiomyidae), are exposed to a diverse range microorganisms within their feeding substrate that is mainly composed decaying organic matter. In current study, we evaluated effect an interaction with Gram-negative bacterium, Pseudomonas protegens Pf-5, on immune responses H. illucens. Five-day-old BSF were injected one five doses bacterial inoculum assess survival. We observed dose-dependent mortality in P. infection, increasing pathogen dose. Injection more than 50 cells per larva resulted 100 % larval mortality, while injection cell caused only 20 mortality. Phenoloxidase activity, element response, correlated dose, early for high dose (i.e., 5000 larva) and later low larva). expression four genes encoding antimicrobial peptides (AMPs), namely cecropin, defensin-A, defensin-like peptide 4, attacin-A, displayed treatment- dose-specific pattern. either PBS (control) or different initially induced upregulation AMP genes; however, reduced over time control larvae. At all tested except hsp70 consistently induced. genes, hsp70, was by at 2 h, then gradually increased significantly 15 h. These results collectively indicate temporally modulate responses, such as phenoloxidase activation gene expression, combat hemolymph.

Language: Английский

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