Efficacy of High-Altitude Biofilm-Forming Novel Bacillus subtilis Species as Plant Growth-Promoting Rhizobacteria on Zea mays L

Roy, Bedaprana; Maitra, D. N.; Biswas, A.; Chowdhury, Nityananda; Ganguly, Sanjib; Bera, Mrinal K.; Dutta, Sangya; Golder, Su; Roy, Sucharita; Ghosh, J. K.; Mitra, Arup Kumar

doi:10.1007/s12010-023-04563-1

Cited by 5 publications

(1 citation statement)

References 28 publications

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“…To confirm or reject this hypothesis, a significance level of 5% was set, and the F value in the ANOVA table was considered. If the F value exceeded the critical F value, the null hypothesis would be rejected, indicating a substantial variance in stalk length linked to the choice of bio-fertilizer (Roy et al 2023).…”

Section: Anovamentioning

confidence: 99%

Unveiling the potential of Halotolerant bacteria as PGPR with an ANOVA and Time-Series enhanced study for sustainable agriculture

Banerjee,

De,

Kanjilal

et al. 2024

JMycR

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This study explores harnessing the potential of halotolerant plant growth-promoting bacteria (PGPR) from Ghoramara Island, addressing challenges of salinity and cyclone-induced soil runoff in the ecologically vulnerable region. Bacillus altitudinis (OS-1) and Priestia megaterium (TDS-3) were chosen as initial biofertilizer consortia to enhance okra (Abelmoschus esculentus) growth, a crucial dietary crop. After salt tolerance and nutrient content analysis, bacterial suspensions were applied to the okra plants, confirming the growth-promoting abilities of native halotolerant strains. OS-1 exhibited the highest growth promotion, with TDS-3 showing intermediate effects. However, the combined application of both strains had an antagonistic effect, emphasizing the necessity for further analysis and gene sequencing to understand the underlying molecular dynamics. This study pioneers the design of a preliminary biofertilizer for optimal agricultural benefits in challenging environments, highlighting the vital role of PGPR in sustainable agriculture. The inclusion of Time and Series analysis along with ANOVA testing enhances the comprehensiveness, providing rigorous statistical analysis of halotolerant PGPR effects on okra growth, ultimately offering a promising avenue to boost crop yields and alleviate environmental stressors in vulnerable regions.

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Section: Anovamentioning

confidence: 99%

Unveiling the potential of Halotolerant bacteria as PGPR with an ANOVA and Time-Series enhanced study for sustainable agriculture

Banerjee,

De,

Kanjilal

et al. 2024

JMycR

View full text Add to dashboard Cite

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Metagenomic Analysis to Assess the Impact of Plant Growth-Promoting Rhizobacteria on Peanut (Arachis hypogaea L.) Crop Production and Soil Enzymes and Microbial Diversity

Bigatton,

Verdenelli,

Haro

et al. 2024

J. Agric. Food Chem.

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Peanut production could be increased through plant growth-promoting rhizobacteria (PGPR). In this regard, the present field research aimed at elucidating the impact of PGPR on peanut yield, soil enzyme activity, microbial diversity, and structure. Three PGPR strains (Bacillus velezensis, RI3; Bacillus velezensis, SC6; Pseudomonas psychrophila, P10) were evaluated, along with Bradyrhizobium japonicum (BJ), taken as a control. PGPR increased seed yield by 8%, improving the radiation use efficiency (4−14%). PGPR modified soil enzymes (fluorescein diacetate activity by 17% and dehydrogenase activity by 28%) and microbial abundance (12%). However, PGPR did not significantly alter microbial diversity; nonetheless, it modified the relative abundance of key phyla (Actinobacteria > Proteobacteria > Firmicutes) and genera (Bacillus > Arthrobacter > Pseudomonas). PGPRs modified the relative abundance of genes associated with N-fixation and nitrification while increasing genes related to N-assimilation and Navailability. PGPR improved agronomic traits without altering rhizosphere diversity.

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Co-exposure impact of nickel oxide nanomaterials and Bacillus subtilis on soybean growth and nitrogen assimilation dynamics

Khan,

Li,

Khan

et al. 2024

Plant Physiology

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Nickel oxide nanoparticles (NiO-NPs) pose potential threats to agricultural production. Bacillus subtilis has emerged as a stress-mitigating microbe that alleviates the phytotoxicity caused by NiO-NPs. However, the mechanisms underlying its effectiveness, particularly in root-nodule symbiosis and biological N2-fixation (BNF), remain unclear. Here, we tested the combined exposure of NiO-NPs (50 mg kg−1) and B. subtilis on soybean (Glycine max L.) growth and BNF. Combined exposure increased root length, shoot length, root biomass, and shoot biomass by 19-26%, while Ni (200 mg kg−1) reduced them by 38--53% compared to the control. NiO-NPs at 100 and 200 mg kg−1 significantly (P < 0.05) reduced nodule formation by 16% and 58% and Nitrogen assimilation enzyme activities levels (UE, NR, HS, and GOGAT) by 13-57%. However, co-exposure with B. subtilis improved nodule formation by 22-44%. Co-exposure of NiO-NPs (200 mg kg−1) with B. subtilis increased POD, CAT, and GSH-Px activity levels by 20%, 16%, and 14% while reducing MDA (14%) and H₂O₂ (12%) levels compared to NiO-NPs alone. Additionally, co-exposure of NiO-NPs (100 and 200 mg kg−1) with B. subtilis enhanced the relative abundance of Stenotrophomonas, Gemmatimonas, and B. subtilis, is associated with N2-cycling and N2-fixation potential. This study confirms that B. subtilis effectively mitigates NiO-NP toxicity in soybean, offering a sustainable method to enhance BNF and crop growth and contribute to addressing global food insecurity.

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Efficacy of High-Altitude Biofilm-Forming Novel Bacillus subtilis Species as Plant Growth-Promoting Rhizobacteria on Zea mays L

Cited by 5 publications

References 28 publications

Unveiling the potential of Halotolerant bacteria as PGPR with an ANOVA and Time-Series enhanced study for sustainable agriculture

Unveiling the potential of Halotolerant bacteria as PGPR with an ANOVA and Time-Series enhanced study for sustainable agriculture

Metagenomic Analysis to Assess the Impact of Plant Growth-Promoting Rhizobacteria on Peanut (Arachis hypogaea L.) Crop Production and Soil Enzymes and Microbial Diversity

Co-exposure impact of nickel oxide nanomaterials and Bacillus subtilis on soybean growth and nitrogen assimilation dynamics

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