Rhizosphere plant-microbe interactions under water stress

Bhattacharyya, Ankita; Pablo, Clint H. D.; Mavrodi, Olga V.; Weller, David M.; Thomashow, Linda S.; Mavrodi, Dmitri V.

doi:10.1016/bs.aambs.2021.03.001

Cited by 42 publications

(31 citation statements)

References 257 publications

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“…Plant‐associated microbes, including plant growth‐promoting rhizobacteria (PGPR), fungi, and viruses, enhance drought resistance in plants by affecting root architecture and osmotic adjustment and manipulating phytohormone and antioxidant metabolism, among other effects (Poudel et al, 2021; Chen et al, 2022). A more prolific and deeper root system improves water uptake during drought stress (Ngumbi and Kloepper, 2016; Bhattacharyya et al, 2021). Many PGPRs have been isolated that improve drought tolerance in crops, such as rice, maize, and wheat.…”

Section: Developing Techniques To Improve Drought Resistancementioning

confidence: 99%

“…As the root is the major organ responsible for water uptake, root phenotypes are of great importance for drought resistance (Kim et al, 2020; Bhattacharyya et al, 2021; Chen et al, 2022; Shoaib et al, 2022). The architecture and anatomical structures of roots are affected by the environment.…”

Section: Advances In the Genetic Dissection Of Drought Resistance In ...mentioning

confidence: 99%

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The battle of crops against drought: Genetic dissection and improvement

Yang

Qin

2023

JIPB

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With ongoing global climate change, water scarcity‐induced drought stress remains a major threat to agricultural productivity. Plants undergo a series of physiological and morphological changes to cope with drought stress, including stomatal closure to reduce transpiration and changes in root architecture to optimize water uptake. Combined phenotypic and multi‐omics studies have recently identified a number of drought‐related genetic resources in different crop species. The functional dissection of these genes using molecular techniques has enriched our understanding of drought responses in crops and has provided genetic targets for enhancing resistance to drought. Here, we review recent advances in the cloning and functional analysis of drought resistance genes and the development of technologies to mitigate the threat of drought to crop production.

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Section: Developing Techniques To Improve Drought Resistancementioning

confidence: 99%

Section: Advances In the Genetic Dissection Of Drought Resistance In ...mentioning

confidence: 99%

The battle of crops against drought: Genetic dissection and improvement

Yang

Qin

2023

JIPB

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“…iii) Meta-transcriptomics, meta-proteomics, and metabolomics (the omics triad): In response to drought stress, the dynamic rhizospheric microbiomes of oat, pea, and wheat showed kingdom-level differences (Bhattacharyya et al 2021); the root-associated vigorous microbiome of sorghum showed escalating transcriptional activity related to the genes concerned with the metabolic activities of carbohydrate and amino acid (due to regular switching of actinobacterial function and activity); and the development of microbial communities as biosensors for bearing the stress generated during the drought periods (Delmotte et al 2009). In-depth understandings of the molecular levels of phenotypes related to the microbial communities from the phyllosphere and rhizosphere have been obtained by metaproteomic investigations.…”

Section: Multi-omics: a Genetic Perspective To Breach Into Microbiome...mentioning

confidence: 99%

Host-mediated gene engineering and microbiome-based technology optimization for sustainable agriculture and environment

Thakur

Nigam

Mann

et al. 2023

Funct Integr Genomics

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The agricultural sector and environmental safety both work hand in hand to promote sustainability in important issues like soil health, plant nutrition, food safety, and security. The conventional methods have greatly harmed the environment and people’s health and caused soil fertility and quality to decline as well as deteriorate. Keeping in view the excessive exploitation and cascade of degradation events due to unsustainable farming practices, the need of the hour demands choosing an appropriate, eco-friendly strategy to restore soil health, plant nutrition, and environmental aspects. The priority highlights a need for a sustainable and environment-friendly upgradation of the present agricultural systems to utilize the beneficial aspects related to harnessing the gene-microbiome strategies which would help in the restoration and replenishment of the microbial pool. Thus, exploring the microbiome is the utmost priority which gives a deep insight into the different aspects related to soil and plant and stands out as an important contributor to plant health and productivity. “Microbes” are important drivers for the biogeochemical cycles and targets like sustainability and safety. This essential microbial bulk (soil microbiome) is greatly influenced by agricultural/farming practices. Therefore, with the help of microbiome engineering technologies like meta-transcriptomics , meta-proteomics , metabolomics , and novel gene-altering techniques , we can easily screen out the highly diverse and balanced microbial population in the bulk of soil, enhancing the soil’s health and productivity. Importantly, we need to change our cultivation strategies to attain such sustainability. There is an urgent need to revert to natural/organic systems of cultivation patterns where the microbiome hub can be properly utilized to strengthen soil health, decrease insect pest and disease incidence, reduce greenhouse gas emissions, and ultimately prevent environmental degradation. Through this article, we wish to propose a shift in the cultivation pattern from chemical to the novel , upgraded gene-assisted designed eco-friendly methodologies which can help in incorporating , exploring , and harnessing the right microbiome consortium and can further help in the progression of environmentally friendly microbiome technologies for agricultural safety and productivity. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10142-023-00982-9.

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“…The metabolism of plants can fluctuate considerably when subjected to abiotic stresses (Buffagni et al, 2020;Ahmed et al, 2021), which might in turn modify the endophytic microbe communities (Bhattacharyya et al, 2021). This means that plants can take the initiative selecting the microbial communities that they harbor within their roots by varying the metabolites contained in their roots.…”

Section: Fungal Communities Were Less Impacted By Peg6000 Treatment T...mentioning

confidence: 99%

Drought stress modifies the community structure of root-associated microbes that improve Atractylodes lancea growth and medicinal compound accumulation

Wang

Kang

et al. 2022

Front. Plant Sci.

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Atractylodes lancea is an important medicinal plant in traditional Chinese medicine, its rhizome is rich of volatile secondary metabolites with medicinal values and is largely demanded in modern markets. Currently, supply of high-yield, high-quality A. lancea is mainly achieved via cultivation. Certain soil microbes can benefit plant growth, secondary metabolism and induce resistance to environmental stresses. Hence, studies on the effects of soil microbe communities and isolates microorganisms on A. lancea is extremely meaningful for future application of microbes on cultivation. Here we investigated the effects of the inoculation with an entire soil microbial community on the growth, resistance to drought, and accumulation of major medicinal compounds (hinesol, β-eudesmol, atractylon and atractylodin) of A. lancea. We analyzed the interaction between A. lancea and the soil microbes at the phylum and genus levels under drought stress of different severities (inflicted by 0%, 10% and 25% PEG6000 treatments). Our results showed that inoculation with soil microbes promoted the growth, root biomass yield, medicinal compound accumulation, and rendered drought-resistant traits of A. lancea, including relatively high root:shoot ratio and high root water content under drought. Moreover, our results suggested drought stress was more powerful than the selectivity of A. lancea in shaping the root-associated microbial communities; also, the fungal communities had a stronger role than the bacterial communities in protecting A. lancea from drought. Specific microbial clades that might have a role in protecting A. lancea from drought stress were identified: at the genus level, the rhizospheric bacteria Bacillus, Dylla and Actinomadura, and rhizospheric fungi Chaetomium, Acrophialophora, Trichoderma and Thielava, the root endophytic bacteria Burkholderia-Caballeronia-Paraburkholderia, Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium, Dylla and Actinomadura, and the root endophytic fungus Fusarium were closely associated with A. lancea under drought stress. Additionally, we acquired several endophytic Paenibacillus, Paraburkholderia and Fusarium strains and verified they had differential promoting effects on the medicinal compound accumulation in A. lancea root. This study reports the interaction between A. lancea and soil microbe communities under drought stress, and provides insights for improving the outcomes in A. lancea farming via applying microbe inoculation.

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Rhizosphere plant-microbe interactions under water stress

Cited by 42 publications

References 257 publications

The battle of crops against drought: Genetic dissection and improvement

The battle of crops against drought: Genetic dissection and improvement

Host-mediated gene engineering and microbiome-based technology optimization for sustainable agriculture and environment

Drought stress modifies the community structure of root-associated microbes that improve Atractylodes lancea growth and medicinal compound accumulation

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