Quorum sensing: its role in microbial social networking

Sharma, Aditi; Singh, Pooja; Sarmah, Bidyut Kr; Nandi, Shoma Paul

doi:10.1016/j.resmic.2020.06.003

Cited by 42 publications

(22 citation statements)

References 67 publications

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“…In these diverse and dynamic physical interactions, both bacteria and fungi are active in signaling and signal recognition for responding appropriately to their partners. Fungal quorum sensing molecules (such as farnesol and tyrosol) and bacterium-secreted metabolites (such as quinolones and homoserine lactones) have been implicated in inter-kindom signaling (Chatterjee et al 2020;Sharma et al 2020). However, the roles of fungal MAP kinase pathways in the establishment of BFI or BFI networks have not been well studied.…”

Section: Interactions With Bacteriamentioning

confidence: 99%

Regulation of biotic interactions and responses to abiotic stresses by MAP kinase pathways in plant pathogenic fungi

et al. 2021

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Like other eukaryotes, fungi use MAP kinase (MAPK) pathways to mediate cellular changes responding to external stimuli. In the past two decades, three well-conserved MAP kinase pathways have been characterized in various plant pathogenic fungi for regulating responses and adaptations to a variety of biotic and abiotic stresses encountered during plant infection or survival in nature. The invasive growth (IG) pathway is homologous to the yeast pheromone response and filamentation pathways. In plant pathogens, the IG pathway often is essential for pathogenesis by regulating infection-related morphogenesis, such as appressorium formation, penetration, and invasive growth. The cell wall integrity (CWI) pathway also is important for plant infection although the infection processes it regulates vary among fungal pathogens. Besides its universal function in cell wall integrity, it often plays a minor role in responses to oxidative and cell wall stresses. Both the IG and CWI pathways are involved in regulating known virulence factors as well as effector genes during plant infection and mediating defenses against mycoviruses, bacteria, and other fungi. In contrast, the high osmolarity growth (HOG) pathway is dispensable for virulence in some fungi although it is essential for plant infection in others. It regulates osmoregulation in hyphae and is dispensable for appressorium turgor generation. The HOG pathway also plays a major role for responding to oxidative, heat, and other environmental stresses and is overstimulated by phenylpyrrole fungicides. Moreover, these three MAPK pathways crosstalk and coordinately regulate responses to various biotic and abiotic stresses. The IG and CWI pathways, particularly the latter, also are involved in responding to abiotic stresses to various degrees in different fungal pathogens, and the HOG pathway also plays a role in interactions with other microbes or fungi. Furthermore, some infection processes or stress responses are co-regulated by MAPK pathways with cAMP or Ca2+/CaM signaling. Overall, functions of individual MAP kinase pathways in pathogenesis and stress responses have been well characterized in a number of fungal pathogens, showing the conserved genetic elements with diverged functions, likely by rewiring transcriptional regulatory networks. In the near future, applications of genomics and proteomics approaches will likely lead to better understanding of crosstalk among the MAPKs and with other signaling pathways as well as roles of MAPKs in defense against other microbes (biotic interactions).

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Section: Interactions With Bacteriamentioning

confidence: 99%

Regulation of biotic interactions and responses to abiotic stresses by MAP kinase pathways in plant pathogenic fungi

et al. 2021

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“…Some of the extensively researched mechanisms in plant–microbial interactions include microbe or plant signalling, quorum sensing, pest control, and volatile compound production (Banik et al 2019 ; Sharma et al 2020 ; Basit et al 2021 ). The flavonoid naringenin works as a signalling molecule, causing A. caulinodans to invade the rice roots in substantial amounts.…”

Section: Flavonoids In Non-rhizobial Plant–bacterial Interactionsmentioning

confidence: 99%

Flavonoid mediated selective cross-talk between plants and beneficial soil microbiome

et al. 2022

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Plants generate a wide variety of organic components during their different growth phases. The majority of those compounds have been classified as primary and secondary metabolites. Secondary metabolites are essential in plants’ adaptation to new changing environments and in managing several biotic and abiotic stress. It also invests some of its photosynthesized carbon as secondary metabolites to establish a mutual relationship with soil microorganisms in that specific niche. As soil harbors both pathogenic and beneficial microorganisms, it is essential to identify some specific metabolites that can discriminate beneficial and pathogenic ones. Thus, a detailed understanding of metabolite’s architectures that interact with beneficial microorganisms could open a new horizon of ecology and agricultural research. Flavonoids are used as classic examples of secondary metabolites in this study to demonstrate recent developments in understanding and realizing how these valuable metabolites can be controlled at different levels. Most of the research was focused on plant flavonoids, which shield the host plant against competitors or predators, as well as having other ecological implications. Thus, in the present review, our goal is to cover a wide range of functional and signalling activities of secondary metabolites especially, flavonoids mediated selective cross-talk between plant and its beneficial soil microbiome. Here, we have summarized recent advances in understanding the interactions between plant species and their rhizosphere microbiomes through root exudates (flavonoids), with a focus on how these exudates facilitate rhizospheric associations. Supplementary Information The online version contains supplementary material available at 10.1007/s11101-022-09806-3.

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“…It is an intercell communication mechanism that allows bacteria to track population density by releasing small diffusible molecules as signaling agents known as autoinducers (Haque et al, 2019;Padder et al, 2018;Whiteley et al, 2017). When the autoinducer binds to its receptor, it activates the target gene, subsequently performing the relevant function in bacteria (expression of virulence factor, motility, biofilm formation, antibiotic resistance, and so on) (Azimi et al, 2020;Pena et al, 2019;Sharma et al, 2020). In the wild, various bacterial species have physically and functionally distinct quorum sensing receptors.…”

Section: Qs Controlmentioning

confidence: 99%

Promising strategies to control persistent enemies: Some new technologies to combat biofilm in the food industry—A review

Mevo

Ashrafudoulla

Mizan

et al. 2021

Comp Rev Food Sci Food Safe

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Biofilm is an advanced form of protection that allows bacterial cells to withstand adverse environmental conditions. The complex structure of biofilm results from genetic-related mechanisms besides other factors such as bacterial morphology or substratum properties. Inhibition of biofilm formation of harmful bacteria (spoilage and pathogenic bacteria) is a critical task in the food industry because of the enhanced resistance of biofilm bacteria to stress, such as cleaning and disinfection methods traditionally used in food processing plants, and the increased food safety risks threatening consumer health caused by recurrent contamination and rapid deterioration of food by biofilm cells. Therefore, it is urgent to find methods and strategies for effectively combating bacterial biofilm formation and eradicating mature biofilms. Innovative and promising approaches to control bacteria and their biofilms are emerging. These new approaches range from methods based on natural ingredients to the use of nanoparticles. This literature review aims to describe the efficacy of these strategies and provide an overview of recent promising biofilm control technologies in the food processing sector.

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Quorum sensing: its role in microbial social networking

Cited by 42 publications

References 67 publications

Regulation of biotic interactions and responses to abiotic stresses by MAP kinase pathways in plant pathogenic fungi

Regulation of biotic interactions and responses to abiotic stresses by MAP kinase pathways in plant pathogenic fungi

Flavonoid mediated selective cross-talk between plants and beneficial soil microbiome

Promising strategies to control persistent enemies: Some new technologies to combat biofilm in the food industry—A review

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