Compounds from rhizosphere microbes that promote plant growth

Ravelo-Ortega, Gustavo; Raya‐González, Javier; López‐Bucio, José

doi:10.1016/j.pbi.2023.102336

Cited by 17 publications

(6 citation statements)

References 48 publications

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“…Microbial immune evasion strategies involve sophisticated mechanisms for subverting plant defense responses. Pathogens mimic plant hormones, interfere with signaling pathways, and suppress immune surveillance to promote colonization and infection (Barka et al, 2023 ; Khoshru et al, 2023 ; Ravelo-Ortega et al, 2023 ). These mechanisms highlight the ability of microbes to circumvent plant immune defenses.…”

Section: Molecular Mechanisms Underlying Plant-microbe Interactionsmentioning

confidence: 99%

Omics approaches in understanding the benefits of plant-microbe interactions

Jain,

Sarsaiya,

Singh

et al. 2024

Front. Microbiol.

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Plant-microbe interactions are pivotal for ecosystem dynamics and sustainable agriculture, and are influenced by various factors, such as host characteristics, environmental conditions, and human activities. Omics technologies, including genomics, transcriptomics, proteomics, and metabolomics, have revolutionized our understanding of these interactions. Genomics elucidates key genes, transcriptomics reveals gene expression dynamics, proteomics identifies essential proteins, and metabolomics profiles small molecules, thereby offering a holistic perspective. This review synthesizes diverse microbial-plant interactions, showcasing the application of omics in understanding mechanisms, such as nitrogen fixation, systemic resistance induction, mycorrhizal association, and pathogen-host interactions. Despite the challenges of data integration and ethical considerations, omics approaches promise advancements in precision intervention and resilient agricultural practices. Future research should address data integration challenges, enhance omics technology resolution, explore epigenomics, and understand plant-microbe dynamics under diverse conditions. In conclusion, omics technologies hold immense promise for optimizing agricultural strategies and fortifying resilient plant-microbe alliances, paving the way for sustainable agriculture and environmental stewardship.

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Section: Molecular Mechanisms Underlying Plant-microbe Interactionsmentioning

confidence: 99%

Omics approaches in understanding the benefits of plant-microbe interactions

Jain,

Sarsaiya,

Singh

et al. 2024

Front. Microbiol.

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“…For example, the fungus Trichoderma produces a variety of highly active VOCs, including 6-pentyl-2H-pyran-2-one (6-PP) and β-caryophyllene. These VOCs can affect how Trichoderma spreads across roots or survives as an endophyte (a microbe that lives inside a plant without causing harm) [161]. Additionally, these VOCs can also influence plant development.…”

Section: Voc-mediated Interactions In the Rhizospherementioning

confidence: 99%

Microbial Allies in Agriculture: Harnessing Plant Growth-Promoting Microorganisms as Guardians against Biotic and Abiotic Stresses

Teiba,

El-Bilawy,

Elsheery

et al. 2023

Horticulturae

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Plants face many biological and non-biological challenges throughout their life cycle, from seed to harvest. These challenges have recently increased due to climate changes. Strategies for confronting different types of stresses depend on the type of stress, the cultivated plant, climatic conditions, soil characteristics, water variables, cost, and management system. Chemical methods (fertilizers and pesticides) have been widely used to manage abiotic and biotic stresses, but they raise concerns about environmental contamination, toxic residues, and the development of resistant pathogens. Eco-friendly strategies have recently become one of the most important approaches to obtaining high-quality and quantitative plant-based products. Microbial inoculants, such as plant growth-promoting microorganisms (PGPM), offer a sustainable alternative to chemical methods. PGPM can augment plant growth and nutrition, improve plant tolerance to abiotic stresses, and reduce the growth of certain pathogens. They employ a variety of mechanisms to alleviate stressors and boost plant resilience, including nutrient assimilation, production of metabolites, and activation of systemic resistance. This review aims to elucidate the impact of PGPM, with a particular focus on plant growth-promoting bacteria (PGPB), and their mechanisms of action on plants under varying stressors, while also identifying areas for further research in both PGPB and other non-bacterial organisms.

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“…For instance, under stress (e.g., a pathogen infection), plants change their root chemical composition by releasing modified root exudates and “ cry for help ” to recruit beneficial microbes from the soil to cope with the stress (Martins et al 2023, Rolfe et al 2019). Like the human gut microbiome, the plant rhizosphere, the narrow soil area around the root, is colonized by diverse microbes (Ravelo-Ortega et al 2023). Some microbes play a crucial role in plant physiological processes and are a first line of defense against invading pathogens (Berg et al 2020, Jiang et al 2022, Trivedi et al 2020).…”

Section: Introductionmentioning

confidence: 99%

The Underground World of Plant Disease: How Does Rhizosphere Dysbiosis Affect Plant Health Above-ground?

Ketehouli,

Pasche,

Buttrós

et al. 2024

Preprint

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Similar to the human gut microbiome, diverse microbes colonize the plant rhizosphere, and an imbalance of this microbial community, known as dysbiosis, may negatively impact plant health. This study aimed to investigate the influence of rhizosphere dysbiosis on above-ground plant health using tomato plants (Solanum lycopersicumL.) and the foliar bacterial spot pathogenXanthomonas perforansas model organisms. Four-week-old tomato plant’s rhizospheres were treated with streptomycin (0.6 g × L-1), or water (negative control) and spray-inoculated withX. perforans(105cells × mL-1) after 24 h. Half of the plants treated with streptomycin andX. perforansreceived soil microbiome transplants (SMT) from uninfected plant donors 48 h after streptomycin application. Streptomycin-treated plants showed a 26% increase in disease severity compared to plants that received no antibiotic, while plants that received the SMT had an intermediate level of disease severity. Antibiotic-treated plants showed a reduced abundance of rhizobacterial taxa like Cyanobacteria from the genusCylindrospermumas well as down-regulation of genes related to plant primary and secondary metabolism and up-regulation of plant defense genes associated with induced systemic resistance (ISR). This study highlights the crucial role of beneficial rhizosphere microbes in disease resistance, even to foliar pathogens.

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Compounds from rhizosphere microbes that promote plant growth

Cited by 17 publications

References 48 publications

Omics approaches in understanding the benefits of plant-microbe interactions

Omics approaches in understanding the benefits of plant-microbe interactions

Microbial Allies in Agriculture: Harnessing Plant Growth-Promoting Microorganisms as Guardians against Biotic and Abiotic Stresses

The Underground World of Plant Disease: How Does Rhizosphere Dysbiosis Affect Plant Health Above-ground?

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