Bacillus subtilis strain GOT9 confers enhanced tolerance to drought and salt stresses in Arabidopsis thaliana and Brassica campestris

Woo, Og-Geum; Kim, Hani; Kim, Jong‐Shik; Keum, Hye Lim; Lee, Kyu-Chan; Sul, Woo Jun; Lee, Jae‐Hoon

doi:10.1016/j.plaphy.2020.01.032

Cited by 70 publications

(38 citation statements)

References 65 publications

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“…These include rsbS , rsbT , rsbW , rsbU , rsbR , rsbV , and hfq genes. The presence of stress response genes confirms the ability of BSA1, BSA29, and BVA3 to help plants in stress tolerance [ 1 , 50 ]. Proteins involved in heat and cold stress are important in DNA and RNA stabilization, thereby increasing transcription and translation efficiency during the stress period [ 30 ].…”

Section: Resultsmentioning

confidence: 79%

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Genome Mining of Three Plant Growth-Promoting Bacillus Species from Maize Rhizosphere

Olanrewaju

Ayilara

Babalola

2021

Appl Biochem Biotechnol

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Bacillus species genomes are rich in plant growth-promoting genetic elements. Bacillus subtilis and Bacillus velezensis are important plant growth promoters; hence, to further improve their abilities, the genetic elements responsible for these traits were characterized and reported. Genetic elements reported include those of auxin, nitrogen fixation, siderophore production, iron acquisition, volatile organic compounds, and antibiotics. Furthermore, the presence of phages and antibiotic-resistant genes in the genomes are reported. Pan-genome analysis was conducted using ten Bacillus species. From the analysis, pan-genome of Bacillus subtilis and Bacillus velezensis are still open. Ultimately, this study brings an insight into the genetic components of the plant growth-promoting abilities of these strains and shows their potential biotechnological applications in agriculture and other relevant sectors.

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Section: Resultsmentioning

confidence: 79%

“…They are good root colonizers and produce several metabolites, which makes them good biocontrol agents against plant pathogens. Reports on their biocontrol activities have been studied by various groups of researchers [ 3 , 15 , 21 , 46 , 50 ]. The most important feature of Bacillus spp.…”

Section: Introductionmentioning

confidence: 99%

Genome Mining of Three Plant Growth-Promoting Bacillus Species from Maize Rhizosphere

Olanrewaju

Ayilara

Babalola

2021

Appl Biochem Biotechnol

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“…Plant-endophyte partnership is a promising phytoremediation approach to remediate contaminated soil by organic pollutants [ 79 ], such as polycyclic aromatic hydrocarbon (PAHs) contaminants. The possible mechanism of abiotic and biotic tolerance in plants triggered by AMF includes phytohormones regulation, exopolysaccharides production, phosphate solubilization, nitrogen fixation, siderophore production, accumulation of various osmolytes (such as proline, sugars, amino acids, polyamines and betaines), alteration of antioxidant defense system, and induction of stress-responsive genes in plants [ 80 , 81 , 82 , 83 ]. In particular, in addition to the direct absorption of phosphate by root epidermal cells, AM symbiotic plants can continuously respond to low nitrogen and phosphorus concentrations through specific mycorrhizal phosphate absorption pathways and increase water supply under stress conditions [ 83 ].…”

Section: Endophytic Fungi Are Critical For Host Healthmentioning

confidence: 99%

A Critical Review on Communication Mechanism within Plant-Endophytic Fungi Interactions to Cope with Biotic and Abiotic Stresses

Wei

Lou

et al. 2021

JoF

100

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Endophytic fungi infect plant tissues by evading the immune response, potentially stimulating stress-tolerant plant growth. The plant selectively allows microbial colonization to carve endophyte structures through phenotypic genes and metabolic signals. Correspondingly, fungi develop various adaptations through symbiotic signal transduction to thrive in mycorrhiza. Over the past decade, the regulatory mechanism of plant-endophyte interaction has been uncovered. Currently, great progress has been made on plant endosphere, especially in endophytic fungi. Here, we systematically summarize the current understanding of endophytic fungi colonization, molecular recognition signal pathways, and immune evasion mechanisms to clarify the transboundary communication that allows endophytic fungi colonization and homeostatic phytobiome. In this work, we focus on immune signaling and recognition mechanisms, summarizing current research progress in plant-endophyte communication that converge to improve our understanding of endophytic fungi.

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“…Concomitantly, the inoculated tomato plants showed decreased expression of ERF1 and WRKY70 that act as stress sensor genes (Abbasi et al, 2020). A study by Woo et al (2020) revealed that a Bacillus subtilis strain GOT9 led to increased tolerance of Arabidopsis and Brassica toward drought stress. Inoculation with the strain led to increased expression of drought inducible genes such as RD29B , RAB18 , RD20 , and NCED3 in Arabidopsis, and DREB1D , WRKY7 , and CSD3 in Brassica.…”

Section: Recruiting Microbes For Drought Tolerancementioning

confidence: 99%

Insights into the plant responses to drought and decoding the potential of root associated microbiome for inducing drought tolerance

Mathur

Roy

2021

Physiologia Plantarum

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Global increase in water scarcity is a serious problem for sustaining crop productivity.The lack of water causes the degeneration of the photosynthetic apparatus, an imbalance in key metabolic pathways, an increase in free radical generation as well as weakens the root architecture of plants. Drought is one of the major stresses that directly interferes with the osmotic status of plant cells. Abscisic acid (ABA) is known to be a key player in the modulation of drought responses in plants and involvement of both ABA-dependent and ABA-independent pathways have been observed during drought. Concomitantly, other phytohormones such as auxins, ethylene, gibberellins, cytokinins, jasmonic acid also confer drought tolerance and a crosstalk between different phytohormones and transcription factors at the molecular level exists. A number of drought-responsive genes and transcription factors have been utilized for producing transgenic plants for improved drought tolerance. Despite relentless efforts, biotechnological advances have failed to design completely stress tolerant plants until now. The root microbiome is the hidden treasure that possesses immense potential to revolutionize the strategies for inducing drought resistance in plants.Root microbiota consist of plant growth-promoting rhizobacteria, endophytes and mycorrhizas that form a consortium with the roots. Rhizospheric microbes are proliferous producers of phytohormones, mainly auxins, cytokinin, and ethylene as well as enzymes like the 1-aminocyclopropane-1-carboxylate deaminase (ACC deaminase) and metabolites like exopolysaccharides that help to induce systemic tolerance against drought. This review, therefore focuses on the major mechanisms of plantmicrobe interactions under drought-stressed conditions and emphasizes the importance of drought-tolerant microbes for sustaining and improving the productivity of crop plants under stress. | INTRODUCTIONPlants are dependent on water like any other living entity and even a small scarcity of water causes a negative impact on their growth and productivity. Drought is one of the major stresses faced by a large number of crop plants due to extreme water paucity and is one of the prime reasons for heavy losses in crop production all over the globe (Fahad et al., 2017). Drought stress seriously interferes with the activities of RUBISCO and other photosynthetic enzymes, along with the enhanced accumulation of reactive oxygen species (ROS) by deteriorating the antioxidant enzyme machinery (Reddy et al., 2004). It also hampers the seed set and yield by affecting the breeding traits like Piyush Mathur and Swarnendu Roy contributed equally to this study.

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Bacillus subtilis strain GOT9 confers enhanced tolerance to drought and salt stresses in Arabidopsis thaliana and Brassica campestris

Cited by 70 publications

References 65 publications

Genome Mining of Three Plant Growth-Promoting Bacillus Species from Maize Rhizosphere

Genome Mining of Three Plant Growth-Promoting Bacillus Species from Maize Rhizosphere

A Critical Review on Communication Mechanism within Plant-Endophytic Fungi Interactions to Cope with Biotic and Abiotic Stresses

Insights into the plant responses to drought and decoding the potential of root associated microbiome for inducing drought tolerance

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