Artificial Selection on Microbiomes To Breed Microbiomes That Confer Salt Tolerance to Plants

Mueller, Ulrich G.; Juenger, Thomas E.; Kardish, Melissa R.; Carlson, Alexis; Burns, Kathleen; Edwards, Joseph; Smith, Chad C.; Fang, Chi-Chun; Marais, David L. Des

doi:10.1128/msystems.01125-21

Cited by 47 publications

(36 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among the dominant classes were Betaproteobacteria followed by Gamma-, Delta- and Alphaproteobacteria ( Jochum et al, 2019 for image). HMME selected microbiome was also found to provide salt tolerance to Brachypodium distachyon ( Mueller et al, 2016 ). Using HMME, specific microbiomes can be engineered to aid wheat and other crop species in mitigating salt, drought, heat, and other types of biotic stresses.…”

Section: Host-mediated Microbiome Engineeringmentioning

confidence: 99%

Wheat Microbiome: Structure, Dynamics, and Role in Improving Performance Under Stress Environments

et al. 2022

View full text Add to dashboard Cite

Wheat is an important cereal crop species consumed globally. The growing global population demands a rapid and sustainable growth of agricultural systems. The development of genetically efficient wheat varieties has solved the global demand for wheat to a greater extent. The use of chemical substances for pathogen control and chemical fertilizers for enhanced agronomic traits also proved advantageous but at the cost of environmental health. An efficient alternative environment-friendly strategy would be the use of beneficial microorganisms growing on plants, which have the potential of controlling plant pathogens as well as enhancing the host plant’s water and mineral availability and absorption along with conferring tolerance to different stresses. Therefore, a thorough understanding of plant-microbe interaction, identification of beneficial microbes and their roles, and finally harnessing their beneficial functions to enhance sustainable agriculture without altering the environmental quality is appealing. The wheat microbiome shows prominent variations with the developmental stage, tissue type, environmental conditions, genotype, and age of the plant. A diverse array of bacterial and fungal classes, genera, and species was found to be associated with stems, leaves, roots, seeds, spikes, and rhizospheres, etc., which play a beneficial role in wheat. Harnessing the beneficial aspect of these microbes is a promising method for enhancing the performance of wheat under different environmental stresses. This review focuses on the microbiomes associated with wheat, their spatio-temporal dynamics, and their involvement in mitigating biotic and abiotic stresses.

show abstract

Section: Host-mediated Microbiome Engineeringmentioning

confidence: 99%

Wheat Microbiome: Structure, Dynamics, and Role in Improving Performance Under Stress Environments

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Bacteria and fungi that are capable of releasing metabolites which trigger plant defence mechanisms against pathogens, insect herbivory, and abiotic stressors are of great interest in crop management. For example, by applying an improved identification and inoculation approach, Mueller et al ( 2021 ) reported a successful selection for rhizosphere microbiomes that confer salt tolerance to the model grass Brachypodium distachyon in greenhouse experiments. Treated plants grown under sodium or aluminum salt stress showed an increase of 55–205% in seed production.…”

Section: Plant Healthmentioning

confidence: 99%

Harnessing belowground processes for sustainable intensification of agricultural systems

2022

View full text Add to dashboard Cite

Increasing food demand coupled with climate change pose a great challenge to agricultural systems. In this review we summarize recent advances in our knowledge of how plants, together with their associated microbiota, shape rhizosphere processes. We address (molecular) mechanisms operating at the plant–microbe-soil interface and aim to link this knowledge with actual and potential avenues for intensifying agricultural systems, while at the same time reducing irrigation water, fertilizer inputs and pesticide use. Combining in-depth knowledge about above and belowground plant traits will not only significantly advance our mechanistic understanding of involved processes but also allow for more informed decisions regarding agricultural practices and plant breeding. Including belowground plant-soil-microbe interactions in our breeding efforts will help to select crops resilient to abiotic and biotic environmental stresses and ultimately enable us to produce sufficient food in a more sustainable agriculture in the upcoming decades.

show abstract

“…The analysis of salt stress tolerance, conferred by the adapted microbial community, was performed by assessing parameters including plant biometrics, stress markers, and bacterial diversity (Anand et al, 2021, Dubey et al, 2022). Similarly, the multi‐passaging approach of rhizospheric engineering was successfully coupled with the ramping‐up of salinity stress, and implemented for nine plant growth cycles, in Brachypodium distachyon , which resulted in salinity stress tolerance in plants after as early as 1–3 passaging cycles (Mueller et al, 2021). The promising results of the above studies emphasize the potential of microbiome‐based approaches to mitigate stress and promote plant growth.…”

Section: Harnessing the Microbiome Of Plantsmentioning

confidence: 99%

“…The 16S rRNA amplicon sequencing of the artificially selected microbiome revealed the abundance of Proteobacteria at the phylum level, specifically β-Proteobacteria (Jochum et al, 2019). Mueller et al (2021) coined the term "differential microbiome-propagation" method for artificial indirect selection of rhizospheric microbiomes and demonstrated improved salt stress tolerance in host plant Brachypodium distachyon using this method. Mitigation of salinity stress in Vigna radiata was witnessed when Anand et al (2021) attempted to adapt the rhizospheric microbiome of the host plant, to salt stress via host-mediated artificial selection by multiple rounds of plant growth under selection pressure (salinity).…”

Section: Synthetic Microbial Communities/consortia (Smc) For Rhizosph...mentioning

confidence: 99%

Management of abiotic stresses by microbiome-based engineering of the rhizosphere

Tyagi

Pradhan

Bhattacharjee

et al. 2022

Journal of Applied Microbiology

View full text Add to dashboard Cite

Abiotic stresses detrimentally affect both plant and soil health, threatening food security in an ever-increasing world population. Sustainable agriculture is necessary to augment crop yield with simultaneous management of stresses. Limitations of conventional bioinoculants have shifted the focus to more effective alternatives. With the realization of the potential of rhizospheric microbiome engineering in enhancing plant's fitness under stress, efforts have accelerated in this direction. Though still in its infancy, microbiome-based engineering has gained popularity because of its advantages over the microbe-based approach. This review briefly presents major abiotic stresses afflicting arable land, followed by an introduction to the conventional approach of microbe-based enhancement of plant attributes and stress mitigation with its inherent limitations. It then focuses on the significance of the rhizospheric microbiome and possibilities of harnessing its potential by its strategic engineering for stress management. Further, success stories related to two major approaches of microbiome engineering (generation of synthetic microbial community/consortium, and host-mediated artificial selection) pertaining to stress management have been critically presented. Together with bringing forth the challenges associated with the wide application of rhizospheric microbiome engineering in agriculture, the review proposes the adoption of a combinational scheme for the same, bringing together ecological and reductionist approaches for improvised sustainable agricultural practices.

show abstract

Artificial Selection on Microbiomes To Breed Microbiomes That Confer Salt Tolerance to Plants

Cited by 47 publications

References 48 publications

Wheat Microbiome: Structure, Dynamics, and Role in Improving Performance Under Stress Environments

Wheat Microbiome: Structure, Dynamics, and Role in Improving Performance Under Stress Environments

Harnessing belowground processes for sustainable intensification of agricultural systems

Management of abiotic stresses by microbiome-based engineering of the rhizosphere

Contact Info

Product

Resources

About