Signalling of Rhizosphere Microbiomes: Benign and Malign Borders

Mondal, Subhoshmita; Baksi, Sibashish

doi:10.1007/978-981-16-4843-4_7

Cited by 2 publications

(1 citation statement)

References 112 publications

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“…Various quorum sensing signaling networks have been identified among rhizobacterial species such as diketopiperazines (DKPs), acylated homoserine lactones (AHLs), diffusible signaling factor (DSF), phytohormones, antibiotics and secondary metabolites, etc. [13,14]. Quorum sensing signals are categorized as acyl-homoserine lactone (AHLs) which are commonly produced by Gram-negative bacteria and autoinducer peptides (AIPs) which are commonly produced by Gram-positive bacteria, out of AIPs autoinducer type 2 have properties of both AHLs and AIPs, hence, can be produced by both Gramnegative and Gram-positive bacteria.…”

Section: Microbial Intra-kingdom Crosstalkmentioning

confidence: 99%

Bacterial Symbiotic Signaling in Modulating Plant-Rhizobacterial Interactions

Tariq¹,

Ahmed²

2023

Symbiosis in Nature

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Rhizosphere is the hub for microbial activities where microbes and plants interact with complex signaling mechanisms. Plants release various metabolites in response to environmental factors which are significant in shaping rhizospheric microbial communities. These microbes develop symbiotic relation with plants by quorum sensing signals and regulate various microbial activities including biofilm formation. Biofilms are important in inhabiting rhizosphere and provide platform for cell-to-cell microbial interactions. Biofilm- forming rhizobacteria can successfully colonize plant roots and establish symbiotic relations with host. During this association, rhizobacteria are flourished by using plant root exudates, while the bacteria benefit the plants by synthesizing phytohormones, locking soil minerals for plant, protecting them from pathogenic invasions and enhancing plant immunity by improving plant tolerance against various environmental conditions. Indole is an effector molecule in regulating bacterial gene expression related to biofilm production. These interactions are coordinated by bacterially released phytohormones mainly auxin which act as key factor in regulating plant-microbe symbiotic interactions. It is characterized as inter- kingdom signaling molecule that coordinates various plant and rhizobacterial activities. Thus, understanding the nature and interacting behaviors of these molecules would lead to the exploitation of plant growth-promoting rhizobacteria for better plant growth in agricultural fields.

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Section: Microbial Intra-kingdom Crosstalkmentioning

confidence: 99%

Bacterial Symbiotic Signaling in Modulating Plant-Rhizobacterial Interactions

Tariq¹,

Ahmed²

2023

Symbiosis in Nature

View full text Add to dashboard Cite

show abstract

Plant Growth Promoting Rhizobacteria (PGPR) induced protection: A plant immunity perspective

Kumari,

Pandey,

Bushra

et al. 2024

Physiologia Plantarum

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Plant‐environment interactions, particularly biotic stress, are increasingly essential for global food security due to crop losses in the dynamic environment. Therefore, understanding plant responses to biotic stress is vital to mitigate damage. Beneficial microorganisms and their association with plants can reduce the damage associated with plant pathogens. One such group is PGPR (Plant growth‐promoting rhizobacteria), which influences plant immunity significantly by interacting with biotic stress factors and plant signalling compounds. This review explores the types, metabolism, and mechanisms of action of PGPR, including their enzyme pathways and the signalling compounds secreted by PGPR that modulate gene and protein expression during plant defence. Furthermore, the review will delve into the crosstalk between PGPR and other plant growth regulators and signalling compounds, elucidating the physiological, biochemical, and molecular insights into PGPR's impact on plants under multiple biotic stresses, including interactions with fungi, bacteria, and viruses. Overall, the review comprehensively adds to our knowledge about PGPR's role in plant immunity and its application for agricultural resilience and food security.

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Signalling of Rhizosphere Microbiomes: Benign and Malign Borders

Cited by 2 publications

References 112 publications

Bacterial Symbiotic Signaling in Modulating Plant-Rhizobacterial Interactions

Bacterial Symbiotic Signaling in Modulating Plant-Rhizobacterial Interactions

Plant Growth Promoting Rhizobacteria (PGPR) induced protection: A plant immunity perspective

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