Bacillus species as tools for biocontrol of plant diseases: A meta-analysis of twenty-two years of research, 2000–2021

Serrão, Cleyson Pantoja; Ortega, Jean Carlo Gonçalves; Rodrigues, Paulo Canas; de Souza, Cláudia Regina Batista

doi:10.1007/s11274-024-03935-x

Cited by 5 publications

(1 citation statement)

References 119 publications

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“…These results are consistent with previous studies by Zaidi et al [60], which highlighted the role of phosphate-solubilizing micro-organisms (PSMs) in promoting the growth of a wide range of vegetable crops, including tomatoes, potatoes, eggplants, and cucumbers. Indeed, Bacillus species are known to produce organic acids to solubilize phosphate [61][62][63]. Hence, one potential explanation for this enhanced growth-promoting effect is KHH13's high phosphorus-dissolving activity (Table 1), which enables the decomposition of tricalcium phosphate in the soil, thereby facilitating better growth of vegetables.…”

Section: Discussionmentioning

confidence: 99%

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: 99%

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

Chen,

Tzean,

Chang

et al. 2024

Agronomy

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Unravelling the secondary metabolome and biocontrol potential of the recently described species Bacillus nakamurai

Nimbeshaho,

Nihorimbere,

Arias

et al. 2024

Microbiological Research

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Rooting for success: Evolutionary enhancement of Bacillus for superior plant colonization

Charron‐Lamoureux,

Lebel‐Beaucage,

Pomerleau

et al. 2024

Microbial Biotechnology

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Many strains from the Bacillus subtilis species complex exert strong plant growth‐promoting activities. However, their efficacy in relevant conditions is variable, due in part to their inability to establish a strong interaction with roots in stressful environmental conditions. Adaptative laboratory evolution (ALE) is a powerful tool to generate novel strains with traits of interest. Many Bacillus evolved isolates, stemming from ALE performed with plants, possess a stronger root colonization capacity. An in‐depth analysis of these isolates also allowed the identification of key features influencing the interaction with plant roots. However, many variables can influence the outcome of these assays, and thus, caution should be taken when designing ALE destined to generate better root colonizers.

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Bacillus species as tools for biocontrol of plant diseases: A meta-analysis of twenty-two years of research, 2000–2021

Cited by 5 publications

References 119 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

Unravelling the secondary metabolome and biocontrol potential of the recently described species Bacillus nakamurai

Rooting for success: Evolutionary enhancement of Bacillus for superior plant colonization

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