Current Microbiology, Год журнала: 2024, Номер 81(7)
Опубликована: Май 23, 2024
Язык: Английский
Frontiers in Bioscience-Landmark, Год журнала: 2025, Номер 30(1)
Опубликована: Янв. 14, 2025
The use of biological control agents is one the best strategies available to combat plant diseases in an ecofriendly manner. Biocontrol bacteria capable providing beneficial effect crop growth and health, have been developed for several decades. It highlights need a deeper understanding colonization mechanisms employed by biocontrol enhance their efficacy pathogen control. present review deals with in-depth steps involved host bacteria. process starts from root zone, where establish initial interactions plant’s system. Moving beyond roots, migrate colonize other organs, including stems, leaves, even flowers. Also, attempts explore facilitating bacterial movement within such as migrating through interconnected spaces vessels or apoplast, applying quorum sensing extracellular enzymes during what needed long-term association plant. impacts on microbial community dynamics, nutrient cycling, overall health are discussed, emphasizing intricate relationships between microbiome benefits above-ground parts, 40 confer. By unraveling these mechanisms, researchers can develop targeted enhancing efficiency effectiveness bacteria, leading more sustainability resilience.
Язык: Английский
Процитировано
1
Current Microbiology, Год журнала: 2025, Номер 82(3)
Опубликована: Фев. 2, 2025
Язык: Английский
Процитировано
1
Plants, Год журнала: 2025, Номер 14(3), С. 475 - 475
Опубликована: Фев. 5, 2025
Crown gall disease (CGD), caused by Agrobacterium tumefaciens, is a common plant that leads to significant economic losses. Biological control sustainable and scalable method for managing CGD. In this study, we isolated three Bacillus strains from the rhizosphere soil of healthy cherry trees investigated their biocontrol activities underlying mechanisms against CGD trees. The results demonstrate can effectively inhibit growth pathogenic A. tumefaciens strain XYT58 in vitro under different culture conditions. pot experiments showed could prevent seedlings. Using PCR amplification, identified genes responsible synthesis difficidin, macrolactin, bacilysin strains. addition, inoculation with WY66 WY519 significantly enhanced expression JA, ET, SA pathway-related plants. presence antibiotic synthesis-related trigger ISR may explain ability findings study provide theoretical basis application development growth-promoting rhizobacteria
Язык: Английский
Процитировано
1
Journal of Plant Physiology, Год журнала: 2025, Номер 307, С. 154455 - 154455
Опубликована: Фев. 20, 2025
Язык: Английский
Процитировано
1
Metabolites, Год журнала: 2022, Номер 12(8), С. 763 - 763
Опубликована: Авг. 19, 2022
The rhizosphere microbiome is a major determinant of plant health. Plant-beneficial or growth-promoting rhizobacteria (PGPR) influence growth, development and adaptive responses, such as induced resistance/priming. These new eco-friendly choices have highlighted volatile organic compounds (biogenic VOCs) potentially inexpensive, effective efficient substitute for the use agrochemicals. Secreted bacterial VOCs are low molecular weight lipophilic with boiling point high vapor pressures. As such, they can act short- long-distance signals in rhizosphere, affecting competing microorganisms impacting In this study, secreted from four PGPR strains (Pseudomonas koreensis (N19), Ps. fluorescens (N04), Lysinibacillus sphaericus (T19) Paenibacillus alvei (T22)) were profiled by solid-phase micro-extraction gas chromatography mass spectrometry (SPME–GC–MS) combined multivariate data analysis. Metabolomic profiling chemometric analyses revealed novel on composition VOC blends strains. Of 121 annotated metabolites, most known bioactives which able to affect metabolism hosts. belong following classes: alcohols, aldehydes, ketones, alkanes, alkenes, acids, amines, salicylic acid derivatives, pyrazines, furans, sulfides terpenoids. results further demonstrated presence species-specific strain-specific VOCs, characterized either absence specific different molecules could be investigated biomarkers classification an organism selection agricultural use.
Язык: Английский
Процитировано
30
Microbiology Spectrum, Год журнала: 2023, Номер 11(2)
Опубликована: Март 2, 2023
Searching the economical, eco-friendly and efficient biological control measures is key to protecting crops from pathogenic fungi. The species of Burkholderia genus are widespread in natural environment, which nonpathogenic members have been reported great potential for agents biofertilizers agricultural application. gladioli strains, however, need more study application fungi, plant growth promotion, induced systemic resistance (ISR).
Язык: Английский
Процитировано
17
Biological Control, Год журнала: 2024, Номер 188, С. 105441 - 105441
Опубликована: Янв. 1, 2024
Bacteria from the Pantoea genus are regularly found to interact with a variety of plants, as pathogens or beneficial bacteria, depending on strain and host plant. Despite increasing interest in this bacterial genus, mechanisms by which it interacts plants remain be deciphered. This review addresses current knowledge about various types interactions metabolic traits spp. protecting against pathogens, direct antagonism stimulation plant innate immunity. The biocontrol capacity species mainly relies production diversity natural metabolites. In review, we also discuss identity potential role these metabolites Pantoea-driven protection.
Язык: Английский
Процитировано
6
Plant Stress, Год журнала: 2024, Номер 11, С. 100397 - 100397
Опубликована: Фев. 16, 2024
Sorghum, a vital cereal crop with significant importance in traditional human health systems, faces severe challenges from biotic stresses. This study aimed to assess the morpho-physiological variations and plant growth promoting rhizobacteria (PGPR)-induced defense mechanisms sorghum against Burkholderia sp. infection, well-known cause of bacterial leaf stripe disease. Also, alterations protein band profile exposed infection were assessed via 2-D gel electrophoresis wherein disappearance bands diseased tissues was recorded. The selected PGPR, A. chroococcum Beijerinck 1901 (MCC 2351), B. megaterium 2336), P. fluorescens (NAIMCC B-00340), secreted hydrogen cyanide ammonia, produced lytic enzymes, cellulase amylase. When tested in-planta, sp., applied as foliar spray, more profoundly impacted compared seed coat application, resulting reductions root dry biomass, whole length, total chlorophyll content by 93.9, 73.4 53.8%, respectively, disease-free control. Visible symptoms disease like brown discoloration necrotic lesions observed infected plants. Furthermore, level phytochemicals, proline, malondialdehyde antioxidants, CAT SOD, foliage declined significantly 46.4, 70.2, 20.7, 16.9%, following inoculation Bacillus coat. Additionally, Burkholderia-infected plants exhibited cellular damage, mainly tissues, revealed SEM CLSM. Interestingly, PGPR substantially enhanced measured parameters while reducing levels phytochemicals antioxidants. These findings suggest that chroococcum, megaterium, fluorescens, possessing biocontrol activity, can be employed profitable, environment pocket-friendly approach for managing diseases production under stress, thereby sufficing food demands.
Язык: Английский
Процитировано
6
Journal of Plant Growth Regulation, Год журнала: 2024, Номер 43(8), С. 2536 - 2554
Опубликована: Апрель 4, 2024
Abstract Plant Growth Promoting Bacteria have proven themselves in agricultural applications not only as biofertilizers but also biocontrol agents against different phytopathogens. In this study, we focused on investigating the ability of Enterobacter cloacae to induce immune response Zea mays Fusarium oxysporum infection. The bacterium was transformed with a plasmid express Green Fluorescence Protein and used greenhouse experiment combination infection treatments. E. successfully colonized root, resulting enhanced physical growth great investment leaf area, photosynthetic pigment production, reduced anthocyanin content. left considerable resistance root rot caused by Fusarium, disease severity from 74.2% (in case alone) about 35.8% addition 14 days before fungal infection). amount salicylic acid (SA) markedly elevated, Pathogen-Related showed up an eightfold increase expression level. From these results, suppose that induces SA-dependent systemic acquired resistance, which allows pre-colonized plants resist
Язык: Английский
Процитировано
6
Journal of Plant Growth Regulation, Год журнала: 2024, Номер unknown
Опубликована: Сен. 5, 2024
Язык: Английский
Процитировано
6