Significance of manganese resistant bacillus cereus strain WSE01 as a bioinoculant for promotion of plant growth and manganese accumulation in Myriophyllum verticillatum

Tang, Yankui; Kang, Houyao; Qin, Zhiyi; Zhang, Kaixuan; Zhong, Yaxuan; Li, Huilan; Mo, Lihong

doi:10.1016/j.scitotenv.2019.135867

Cited by 30 publications

(4 citation statements)

References 69 publications

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“…It was reported that the inoculation of PGPR enhances the availability of nutrients to plants especially the uptake of nitrogen, phosphorus, and iron was improved significantly. They colonize in the rhizosphere and convert the insoluble bound form of ions into the available form so that they can be absorbed from plant roots and their bioaccumulation was improved [18][19][20]. They have the potential to degrade/solubilize heavy metals by producing metabolizing enzymes and enhance the phytoextraction potential of plants.…”

Section: Introductionmentioning

confidence: 99%

Role of Bacillus cereus in Improving the Growth and Phytoextractability of Brassica nigra (L.) K. Koch in Chromium Contaminated Soil

et al. 2021

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Plant growth-promoting rhizobacteria (PGPR) mediate heavy metal tolerance and improve phytoextraction potential in plants. The present research was conducted to find the potential of bacterial strains in improving the growth and phytoextraction abilities of Brassica nigra (L.) K. Koch. in chromium contaminated soil. In this study, a total of 15 bacterial strains were isolated from heavy metal polluted soil and were screened for their heavy metal tolerance and plant growth promotion potential. The most efficient strain was identified by 16S rRNA gene sequencing and was identified as Bacillus cereus. The isolate also showed the potential to solubilize phosphate and synthesize siderophore, phytohormones (indole acetic acid, cytokinin, and abscisic acid), and osmolyte (proline and sugar) in chromium (Cr+3) supplemented medium. The results of the present study showed that chromium stress has negative effects on seed germination and plant growth in B. nigra while inoculation of B. cereus improved plant growth and reduced chromium toxicity. The increase in seed germination percentage, shoot length, and root length was 28.07%, 35.86%, 19.11% while the fresh and dry biomass of the plant increased by 48.00% and 62.16%, respectively, as compared to the uninoculated/control plants. The photosynthetic pigments were also improved by bacterial inoculation as compared to untreated stress-exposed plants, i.e., increase in chlorophyll a, chlorophyll b, chlorophyll a + b, and carotenoid was d 25.94%, 10.65%, 20.35%, and 44.30%, respectively. Bacterial inoculation also resulted in osmotic adjustment (proline 8.76% and sugar 28.71%) and maintained the membrane stability (51.39%) which was also indicated by reduced malondialdehyde content (59.53% decrease). The antioxidant enzyme activities were also improved to 35.90% (superoxide dismutase), 59.61% (peroxide), and 33.33% (catalase) in inoculated stress-exposed plants as compared to the control plants. B. cereus inoculation also improved the uptake, bioaccumulation, and translocation of Cr in the plant. Data showed that B. cereus also increased Cr content in the root (2.71-fold) and shoot (4.01-fold), its bioaccumulation (2.71-fold in root and 4.03-fold in the shoot) and translocation (40%) was also high in B. nigra. The data revealed that B. cereus is a multifarious PGPR that efficiently tolerates heavy metal ions (Cr+3) and it can be used to enhance the growth and phytoextraction potential of B. nigra in heavy metal contaminated soil.

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Section: Introductionmentioning

confidence: 99%

Role of Bacillus cereus in Improving the Growth and Phytoextractability of Brassica nigra (L.) K. Koch in Chromium Contaminated Soil

et al. 2021

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“…Certain rhizobacteria, such as Geobacter, Pseudomonas and Bacillus, convert oxidized Mn 4+ to Mn 2+ , which is beneficial for plant metabolism [ 78 ]. Tang et al recently reported Mn accumulation and plant growth enhancement in Myriophyllum verticillatum by injecting Mn-resistant Bacillus cereus WSE01 [ 79 ]. In pigeon peas and chickpeas, E. ludwigii SRI-229 and E. ludwigii SRI-211 increased the concentration of Mn by 2–39 percent [ 72 ].…”

Section: Techniques Of Biofortificationmentioning

confidence: 99%

Biofortification as a solution for addressing nutrient deficiencies and malnutrition

Naik,

Kumar,

Rizwanuddin

et al. 2024

Heliyon

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“…Soil-borne microorganisms can stimulate plant growth by promoting the availability of inaccessible nutrients in the soil [ 3 ]. Plants can take advantage of these microbes in the following ways: a) Phyto-stimulation (plant growth is promoted by the hormones released by microorganisms), b) PGPR (plant growth promoting rhizobacteria used as bioinoculant, c) Biological control agents (protect the plant body against abiotic stress) [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Bioinoculant mediated regulation of signalling cascades in various stress responses in plants

Dasgupta¹,

Paul²,

Acharya

et al. 2023

Heliyon

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Significance of manganese resistant bacillus cereus strain WSE01 as a bioinoculant for promotion of plant growth and manganese accumulation in Myriophyllum verticillatum

Cited by 30 publications

References 69 publications

Role of Bacillus cereus in Improving the Growth and Phytoextractability of Brassica nigra (L.) K. Koch in Chromium Contaminated Soil

Role of Bacillus cereus in Improving the Growth and Phytoextractability of Brassica nigra (L.) K. Koch in Chromium Contaminated Soil

Biofortification as a solution for addressing nutrient deficiencies and malnutrition

Bioinoculant mediated regulation of signalling cascades in various stress responses in plants

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