Recent advances in Bacillus-mediated plant growth enhancement: a paradigm shift in redefining crop resilience

Patani, Anil; Patel, Margi; Islam, Shaikhul; Yadav, Virendra Kumar; Prajapati, Dharmendra; Yadav, Ajar Nath; Sahoo, Dipak Kumar; Patel, Ashish

doi:10.1007/s11274-024-03903-5

Cited by 7 publications

(3 citation statements)

References 98 publications

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“…These bio-based products represent a safe, effective, and sustainable approach to the cultivation and management of vegetable crops. The Bacillus genus has been recognized for its ability to enhance soil fertility and crop resilience by mobilizing nutrients, suppressing diseases, and providing stress resilience [59]. In our greenhouse experiments, B. velezensis KHH13 significantly enhances the growth of various vegetable crops (Figure 3, Figure 4 and Figure S3), particularly red lettuce (Figure 3), as compared to other strains such as B. velezensis KHC2 and B. amyloliquefaciens KHH5.…”

Section: Discussionmentioning

confidence: 74%

Characterization of Biofertilization and Biocontrol Potential of Bacillus velezensis KHH13 from Organic Soils

Chen,

Tzean,

Chang

et al. 2024

Agronomy

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Efficient and sustainable food production is crucial in global agricultural development. Overuse of chemical fertilizers leads to soil acidification, destruction of soil properties, and harm to soil micro-organisms. Plant growth-promoting rhizobacteria (PGPR) have emerged as a solution, enhancing soil fertility and crop yields while reducing chemical fertilizer dependency and disease occurrence. In this study, Bacillus strains KHC2, KHH5, and KHH13, isolated from organic rice field soils in Taiwan, were identified through molecular techniques as B. velezensis (KHC2, KHH13) and B. amyloliquefaciens (KHH5). The strains exhibited various hydrolytic enzymes (including protease, cellulase, amylase, and lecithinase), with KHH13 showing the highest phosphate solubilization (2186.1 µg mL−1 day−1) and indole-3-acetic acid (IAA) production (63.067 ± 0.595 ppm mL−1). These properties indicate KHH13’s potential as a bio-enhancer for plant growth. Therefore, we hypothesized that KHH13 can enhance plant growth and control soil-borne diseases. A greenhouse experiment demonstrated that KHH13, KHC2, and KHH5 effectively promoted the growth of red lettuce, with KHH13 showing superior efficacy. The study also found KHH13’s treatment enhanced the growth of various vegetables, including tomato, cucumber, and red lettuce. In terms of disease control, KHH13 significantly reduced Fusarium wilt in cucumbers, as evidenced by the reduction in disease index from 74.33% to 41.67% after KHH13 treatment. The treatment group displayed better plant growth, including plant height and fresh weight, compared to the control group in the greenhouse experiment. Furthermore, oral and pulmonary acute toxicity analysis in rats showed no adverse effects on rat weight or mortality, indicating KHH13’s safety for mammalian use. These findings suggest B. velezensis KHH13 as a safe, effective, and sustainable biological agent for enhancing vegetable growth and controlling soil-borne diseases, with potential applications in sustainable agriculture.

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Section: Discussionmentioning

confidence: 74%

Characterization of Biofertilization and Biocontrol Potential of Bacillus velezensis KHH13 from Organic Soils

Chen,

Tzean,

Chang

et al. 2024

Agronomy

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“…reatments with ADJ6 comparatively showed more enhanced wheat growth promotion and productivity parameters than those with ADJ1. As with the ADJ1 and AdJ6 isolates, a substantial number of other B. cereus [115][116][117][118][119][120][121] and P. aryabhattai [122][123][124][125][126][127] have been shown with PGP assets.…”

Section: Discussionmentioning

confidence: 92%

Novel Bacillus and Prestia isolates from Dwarf century plant enhance crop yield and salinity tolerance

Dhar,

Kaur,

Singh

et al. 2024

Sci Rep

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Soil salinity is a major environmental stressor impacting global food production. Staple crops like wheat experience significant yield losses in saline environments. Bioprospecting for beneficial microbes associated with stress-resistant plants offers a promising strategy for sustainable agriculture. We isolated two novel endophytic bacteria, Bacillus cereus (ADJ1) and Priestia aryabhattai (ADJ6), from Agave desmettiana Jacobi. Both strains displayed potent plant growth-promoting (PGP) traits, such as producing high amounts of indole-3-acetic acid (9.46, 10.00 µgml−1), ammonia (64.67, 108.97 µmol ml−1), zinc solubilization (Index of 3.33, 4.22, respectively), ACC deaminase production and biofilm formation. ADJ6 additionally showed inorganic phosphate solubilization (PSI of 2.77), atmospheric nitrogen fixation, and hydrogen cyanide production. Wheat seeds primed with these endophytes exhibited enhanced germination, improved growth profiles, and significantly increased yields in field trials. Notably, both ADJ1 and ADJ6 tolerated high salinity (up to 1.03 M) and significantly improved wheat germination and seedling growth under saline stress, acting both independently and synergistically. This study reveals promising stress-tolerance traits within endophytic bacteria from A. desmettiana. Exploiting such under-explored plant microbiomes offers a sustainable approach to developing salt-tolerant crops, mitigating the impact of climate change-induced salinization on global food security.

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“…The impacts of heavy metals on plant nutrient dynamics are crucial environmental and agricultural concerns, heavy metals disrupt the normal uptake and utilization of essential nutrients, competing with elements like iron, zinc, and manganese for uptake by plant roots, this competition leads to imbalances in nutrient availability, affecting vital processes like photosynthesis and enzyme activities, the presence of heavy metals alters the biochemical composition of plants, impacting the nutritional quality of crops, this disruption not only affects individual plants but poses risks for the entire food chain, as contaminated crops may lead to reduced nutrient content and compromised nutritional value when consumed by animals or humans. Mitigating these impacts requires comprehensive strategies, including soil remediation techniques, sustainable agriculture, and the development of metal-tolerant plant varieties (Patani, et al, 2024).…”

Section: Heavy Metals Disrupt Plant Growth Affecting Uptake Nutrients...mentioning

confidence: 99%

Heavy Metal Contamination in Urban Soils: Health Impacts on Humans and Plants: A Review

Monib,

Niazi,

Azizi

et al. 2024

ejtas

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This research looks at how the growth of cities and industries affects the levels of heavy metals in the soil, which can impact people's health. We find out where the pollution comes from, such as factories, car fumes, and improper waste disposal, by reviewing existing studies. We use different methods to test the soil for heavy metals and study how exposure to these metals in urban areas affects people's health. The evidence shows a connection between high levels of heavy metals in city soil and health problems like breathing issues, brain disorders, and overall toxicity in the body. We also explore how these metals get into the human body, highlighting the importance of understanding how they are available and the ways people are exposed. To deal with polluted city soils, we look at different ways to manage the soil and suggest sustainable methods to reduce heavy metal pollution. Our discoveries add to what we know about urban environmental health, emphasizing the need for actions to protect city residents. Ultimately, this study aims to give important information and insights to policymakers, city planners, and public health officials for managing and lessening the health risks linked to heavy metal contamination in urban soils.

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Recent advances in Bacillus-mediated plant growth enhancement: a paradigm shift in redefining crop resilience

Cited by 7 publications

References 98 publications

Characterization of Biofertilization and Biocontrol Potential of Bacillus velezensis KHH13 from Organic Soils

Characterization of Biofertilization and Biocontrol Potential of Bacillus velezensis KHH13 from Organic Soils

Novel Bacillus and Prestia isolates from Dwarf century plant enhance crop yield and salinity tolerance

Heavy Metal Contamination in Urban Soils: Health Impacts on Humans and Plants: A Review

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