Induction of Systemic Resistance against Insect Herbivores in Plants by Beneficial Soil Microbes

Rashid, Md. Harun-Or; Chung, Young Ryun

doi:10.3389/fpls.2017.01816

Cited by 133 publications

(97 citation statements)

References 135 publications

(174 reference statements)

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“…It is well established that rhizosphere colonization by beneficial soil microbes can reduce the negative impact of above-ground herbivores on plant growth (Pieterse et al, 2014;Pineda et al, 2017;Rashid & Chung, 2017). For example, soil microbes can prime plants to respond faster or stronger to their attackers, especially to cell-feeding and leaf-chewing herbivores (Mart ınez- Medina et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Conditioning the soil microbiome through plant–soil feedbacks suppresses an aboveground insect pest

et al. 2020

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Summary Soils and their microbiomes are now recognized as key components of plant health, but how to steer those microbiomes to obtain their beneficial functions is still unknown. Here, we assess whether plant–soil feedbacks can be applied in a crop system to shape soil microbiomes that suppress herbivorous insects in above‐ground tissues. We used four grass and four forb species to condition living soil. Then we inoculated those soil microbiomes into sterilized soil and grew chrysanthemum as a focal plant. We evaluated the soil microbiome in the inocula and after chrysanthemum growth, as well as plant and herbivore parameters. We show that inocula and inoculated soil in which a focal plant had grown harbor remarkably different microbiomes, with the focal plant exerting a strong negative effect on fungi, especially arbuscular mycorrhizal fungi. Soil inoculation consistently induced resistance against the thrips Frankliniella occidentalis, but not against the mite Tetranychus urticae, when compared with sterilized soil. Additionally, plant species shaped distinct microbiomes that had different effects on thrips, chlorogenic acid concentrations in leaves and plant growth. This study provides a proof‐of‐concept that the plant–soil feedback concept can be applied to steer soil microbiomes with the goal of inducing resistance above ground against herbivorous insects.

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Section: Introductionmentioning

confidence: 99%

Conditioning the soil microbiome through plant–soil feedbacks suppresses an aboveground insect pest

et al. 2020

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“…Gouda et al (2018) emphasize the importance of plant growth promoting rhizobacteria as the best option for the plant and soil health instead of chemical fertilizers and pesticides. Rashid and Chung (2017) discuss plant hormone signaling regulation and biosynthesis by rhizobacteria and rhizofungi likewise the jasmonic acid, ethylene and salicylic acid pathways which trigger protection mechanisms against pathogens and insects.…”

Section: Discussionmentioning

confidence: 99%

Analysis of a bacterial community structure and the diversity of phzF gene in samples of the Amazonian Dark Earths cultivated with cowpea [Vigna unguiculata (L.) Wald]

Souza¹,

Cannavan²,

Kanzaki³

et al. 2018

Afr. J. Agric. Res.

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It is important to understand the Amazonian Dark Earth (ADE) diversified microbial communities which colonize agricultural soils and interact with plants, allowing a more sustainable way of soil utilization. Genomic prospection of biotechnological interest, such as the phenazine biosynthesis genes, was carried out by the characterization of the bacterial community structure through the analysis of the 16S rRNA gene in ADE rhizospheric and bulk soil sampled in the forest, and in the agriculture managed soil, being subsequently cultivated with caupi bean. Additionally, the phzF gene coding for a key enzyme in the phenazine biosynthesis was detected and quantified. Gene polymophism (Terminal Restriction Fragment Length Polymorphism, T-RFLP) analysis revealed differences in the bacterial community structure between colonized rhizospheric and bulk soil, but there were no differences concerning the 16S rRNA gene copy number. Besides, the phzF gene copy number was higher in the rhizospheric than in the bulk soil, without any difference between forest and agricultural soils. This work confirms that the type of soil and the interaction between plants and microorganisms are key factors that shape the structure and diversity of bacterial communities and represent a biotechnological potential, with the possibility of finding natural compounds for use in biological control.

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“…Bacterial endophytes have an advantage over bacteria inhabiting the rhizo-or phyllosphere, since living within a plant's tissues represents an opportunity to always be in "contact" with the plant's cells and, therefore, to more readily exert a direct beneficial effect on plant hosts, and to reduce the influence of the environmental conditions on PGPB. It was shown (Araújo et al, 2015) that a number of Bacillus strains have fungicidal, insecticidal, aphycidal (Araújo et al, 2015;Yang et al, 2017) and growth-promoting activities (Pieterse et al, 2014), synthesize antibiotics and biosurfactants (De Vleesschauwer, Höfte 2009), promote induced systemic resistance (ISR) against pathogens and pests (Rashid, Chung 2017). There is a wealth of data on endophyte influence on plant viability, and the most recent are investigations of the problem of artificial plant microbial community on the basis of growth-promoting bacteria (Moronta-Barrios et al, 2018).…”

Section: Plant Resistance To Pathogens and Other Biotic Stressesmentioning

confidence: 99%

Potential of ribonuclease-sinthesizing plant growth promoting rhizobacteria in plant defence against viruses

2019

Plant Genetic Resources for Breeding and Producing Functional Nutraceutical Food

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Viruses cause epiphytotics on all major cultures of agronomic importance, representing a serious danger to global food security. As strictly intracellular pathogens, they cannot be controlled chemically and prophylactic measures consist mainly in the destruction of infected plants and excessive pesticide applications to limit the population of vector organisms. An alternative antiviral strategy is associated with the use of microbial enzymes, which are less toxic and are readily decomposed without accumulation of harmful substances. Plant-growth promoting microorganisms (PGPR), especially endophytic strains, or their communities can promote plant defence against viral diseases via producing ribonucleases, which are capable of degrading viral RNA.

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Induction of Systemic Resistance against Insect Herbivores in Plants by Beneficial Soil Microbes

Cited by 133 publications

References 135 publications

Conditioning the soil microbiome through plant–soil feedbacks suppresses an aboveground insect pest

Conditioning the soil microbiome through plant–soil feedbacks suppresses an aboveground insect pest

Analysis of a bacterial community structure and the diversity of phzF gene in samples of the Amazonian Dark Earths cultivated with cowpea [Vigna unguiculata (L.) Wald]

Potential of ribonuclease-sinthesizing plant growth promoting rhizobacteria in plant defence against viruses

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