IBUN2755 Bacillus strain controls seedling root and bacterial panicle blight caused by Burkholderia glumae

Pedraza-Herrera, Luz Adriana; Bautista, Jessica Paola; Cruz-Ramírez, Carlos Alberto; Uribe-Vélez, Daniel

doi:10.1016/j.biocontrol.2020.104494

Cited by 12 publications

(10 citation statements)

References 37 publications

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“…There is ample evidence that inoculation with representatives of the Bacillus genus increases rice grain yield [ 68 , 69 ]. Similar results were obtained under greenhouse conditions upon inoculation with Bacillus subtilis C-3102, a producer of auxins with high protease activity, increasing grain yield (g pot −1 ) by 39.6% [ 70 ].…”

Section: Discussionmentioning

confidence: 99%

Co-Inoculation of Endophytes Bacillus siamensis TUR07-02b and Priestia megaterium SMBH14-02 Promotes Growth in Rice with Low Doses of Nitrogen Fertilizer

Ríos-Ruiz

Tuanama-Reátegui

Huamán-Córdova

et al. 2023

Plants

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Multiple biotic and abiotic factors influence rice cultivation. These factors limit productivity and yield, as well as an irrational use of agrochemicals in rice cultivation. A sustainable alternative is using selected growth-promoting microorganisms to increase nutritional efficiency. In the present study, the direct mechanisms of growth promotion in two strains of Bacillus, three strains of Priestia, and two strains of Burkholderia endophytes of rice were characterized. Bacillus siamensis TUR07-02b and Priestia megaterium SMBH14-02 were selected to promote Oryza sativa var’s growth. “Bellavista” was used at different doses (50, 75, and 100%) of mineral nitrogen (N) using a randomized block design by quintuplicate. Both strains, SMBH14-02 and TUR07-02b, presented outstanding promoter characteristics, including auxin production (123.17 and 335.65 μg mL−1, respectively) and biological nitrogen fixation capacity. Similarly, B. siamensis TUR07-02b could solubilize phosphate-Ca (20.94 μg mL−1), cellulases, and pectinases. Under greenhouse conditions, co-inoculated plants receiving 75% of the total dose of mineral nitrogen showed increased agronomic parameters in relation to panicle length, grains per panicle, grain yield, and harvest index by 25.0, 30.7, 39.5, and 12.5%, respectively, compared to the 75% fertilized treatment without inoculation. The strains of B. siamensis TUR07-02b and P. megaterium SMBH14-02 are potential microbial resources in the formulation of new inoculants to reduce the use of nitrogenous fertilizers. Thus, agronomic validation of the inoculant consortium at the field level will be an essential step in providing an alternative for the sustainable management of rice cultivation and increased productivity of rice farmers in the San Martín region.

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Section: Discussionmentioning

confidence: 99%

Co-Inoculation of Endophytes Bacillus siamensis TUR07-02b and Priestia megaterium SMBH14-02 Promotes Growth in Rice with Low Doses of Nitrogen Fertilizer

Ríos-Ruiz

Tuanama-Reátegui

Huamán-Córdova

et al. 2023

Plants

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“…In this study, we demonstrate that the biogenic ZnONPs significantly reduced the biofilm formation as compared to control treatment. To check the inhibition of biofilm formation, we considered three different suspensions (10,25, and 50 µg mL −1 ) of ZnONPs. Our results revealed a 56.7, 57.6, and 65.2% reduction in the biofilm formation of B. glumae and a 48.9, 51.0, and 59.1% reduction of B. gladioli at 10, 25, and 50 µg mL −1 of ZnONPs, respectively (Table 2).…”

Section: Inhibition Of Biofilm Formationmentioning

confidence: 99%

“…The BPB has severely reduced yields of infected rice fields as it causes severe damage, e.g., floret sterility, grain abortion, and milling quality reduction [7][8][9]. It is widely accepted that the rice yield losses associated with BPB disease cannot be mitigated with applications of chemical pesticides [10]. The lack of effective alternative control for BPB may be due to the increased bacterial resistance, high genetic diversity, and climatic conditions in the current global warming scenario [11].…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Green Synthesis of Zinc Oxide Nanoparticles from a Native Bacillus cereus Strain RNT6: Characterization and Antibacterial Activity against Rice Panicle Blight Pathogens Burkholderia glumae and B. gladioli

Ahmed

Jiang

et al. 2021

Nanomaterials

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Burkholderia glumae and B. gladioli are seed-borne rice pathogens that cause bacterial panicle blight (BPB) disease, resulting in huge rice yield losses worldwide. However, the excessive use of chemical pesticides in agriculture has led to an increase in environmental toxicity. Microbe-mediated nanoparticles (NPs) have recently gained significant attention owing to their promising application in plant disease control. In the current study, we biologically synthesize zinc oxide nanoparticles (ZnONPs) from a native Bacillus cereus RNT6 strain, which was taxonomically identified using 16S rRNA gene analysis. The biosynthesis of ZnONPs in the reaction mixture was confirmed by using UV–Vis spectroscopy. Moreover, XRD, FTIR, SEM-EDS, and TEM analysis revealed the functional groups, crystalline nature, and spherical shape of ZnONPs with sizes ranging from 21 to 35 nm, respectively. Biogenic ZnONPs showed significant antibacterial activity at 50 µg mL−1 against B. glumae and B. gladioli with a 2.83 cm and 2.18 cm zone of inhibition, respectively, while cell numbers (measured by OD600) of the two pathogens in broth culture were reduced by 71.2% and 68.1%, respectively. The ultrastructure studies revealed the morphological damage in ZnONPs-treated B. glumae and B. gladioli cells as compared to the corresponding control. The results of this study revealed that ZnONPs could be considered as promising nanopesticides to control BPB disease in rice.

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“…In recent trials, Bacillus spp. showed a biocontrol capacity in the greenhouse for reducing B. glumae infection by as much as 63.5%, while the populations of B. glumae in the plant were diminished by at least two orders of magnitude [ 135 ].…”

Section: Services Of Microbes In Protecting Rice Plants Against Plant Diseasesmentioning

confidence: 99%

Microbial Contributions for Rice Production: From Conventional Crop Management to the Use of ‘Omics’ Technologies

Doni

Suhaimi

Mispan

et al. 2022

IJMS

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Rice, the main staple food for about half of the world’s population, has had the growth of its production stagnate in the last two decades. One of the ways to further improve rice production is to enhance the associations between rice plants and the microbiome that exists around, on, and inside the plant. This article reviews recent developments in understanding how microorganisms exert positive influences on plant growth, production, and health, focusing particularly on rice. A variety of microbial species and taxa reside in the rhizosphere and the phyllosphere of plants and also have multiple roles as symbiotic endophytes while living within plant tissues and even cells. They alter the morphology of host plants, enhance their growth, health, and yield, and reduce their vulnerability to biotic and abiotic stresses. The findings of both agronomic and molecular analysis show ways in which microorganisms regulate the growth, physiological traits, and molecular signaling within rice plants. However, many significant scientific questions remain to be resolved. Advancements in high-throughput multi-omics technologies can be used to elucidate mechanisms involved in microbial–rice plant associations. Prospectively, the use of microbial inoculants and associated approaches offers some new, cost-effective, and more eco-friendly practices for increasing rice production.

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IBUN2755 Bacillus strain controls seedling root and bacterial panicle blight caused by Burkholderia glumae

Cited by 12 publications

References 37 publications

Co-Inoculation of Endophytes Bacillus siamensis TUR07-02b and Priestia megaterium SMBH14-02 Promotes Growth in Rice with Low Doses of Nitrogen Fertilizer

Co-Inoculation of Endophytes Bacillus siamensis TUR07-02b and Priestia megaterium SMBH14-02 Promotes Growth in Rice with Low Doses of Nitrogen Fertilizer

Bioinspired Green Synthesis of Zinc Oxide Nanoparticles from a Native Bacillus cereus Strain RNT6: Characterization and Antibacterial Activity against Rice Panicle Blight Pathogens Burkholderia glumae and B. gladioli

Microbial Contributions for Rice Production: From Conventional Crop Management to the Use of ‘Omics’ Technologies

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