Pseudomonas aeruginosa Ld-08 isolated from Lilium davidii exhibits antifungal and growth-promoting properties

Khan, Mohammad Sayyar; Gao, Jun-lian; Zhang, Mingfang; Xue, Juan; Zhang, Xiuhai

doi:10.1371/journal.pone.0269640

Cited by 15 publications

(10 citation statements)

References 71 publications

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“…Values in parentheses are arcsine transformed. Khan et al, 2022;Kumar et al, 2005). In the present study, phyllospheric isolates of P. aeruginosa and B. subtilis increased the plant growth.…”

Section: Ta B L Esupporting

confidence: 57%

“…Unfortunately, strains of P. aeruginosa are considered human opportunistic pathogens because they are isolated from the clinical samples. However, several P. aeruginosa strains were isolated from agricultural ecosystems and used as biocontrol agents and plant growth‐promoting agents (Anjaiah et al., 2003; Guo et al., 2023; Khan et al., 2022; Kumar et al., 2005). In the present study, phyllospheric isolates of P. aeruginosa and B. subtilis increased the plant growth.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of phyllosphere bacterial biocontrol agents for the suppression of rice foliar diseases

Sobanbabu,

Oviya,

Meena

et al. 2024

Journal of Phytopathology

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Phyllosphere colonizing antagonistic bacterial isolates were evaluated for managing major rice foliar diseases, namely brown spot caused by Bipolaris oryzae and sheath rot caused by Sarocladium oryzae. Among these various isolates, Pseudomonas aeruginosa isolate 1 effectively inhibited the mycelial growth of B. oryzae and S. oryzae. The volatile compounds of Bacillus subtilis isolates effectively inhibited the mycelial growth of S. oryzae and B. oryzae. Non‐volatile compounds of P. aeruginosa isolate 2 and B. subtilis isolate 1 recorded the maximum inhibition of mycelial growth of B. oryzae and S. oryzae, respectively. P. aeruginosa isolates produced fluorescent pigments and hydrogen cyanide (HCN), whereas isolates of Bacillus spp. did not. All the isolates of P. aeruginosa and Bacillus spp. produced protease enzymes. P. aeruginosa isolates solubilized phosphate, whereas isolates of Bacillus spp. did not. Rice seeds treated with these bacterial suspensions showed improvement in plant growth parameters. The foliar application of two bacterial strains, namely P. aeruginosa isolate 1 + B. subtilis isolate 1 recorded the minimum brown spot and sheath rot disease incidence. Thus, the present showed that phyllosphere colonizing P. aeruginosa and B. subtilis have the potential application for managing foliar fungal diseases of rice plants.

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Section: Ta B L Esupporting

confidence: 57%

Section: Discussionmentioning

confidence: 99%

Evaluation of phyllosphere bacterial biocontrol agents for the suppression of rice foliar diseases

Sobanbabu,

Oviya,

Meena

et al. 2024

Journal of Phytopathology

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“…This means that P. aeruginosa and the three types of Bacillus tested are compatible, so the four species can be combined in one biofertilizer formula. Several strains of P. aeruginosa can produce IAA and secondary metabolites with antifungal effects in addition to their ability to solubilize phosphate [17] ; [18]. According to [19] Several genera of Bacillus can dissolve P and K, bind N, and produce IAA which can promote plant growth and produce substances that prevent the growth of disease-causing fungi.…”

Section: Resultsmentioning

confidence: 99%

The effect of functional bacterial consortium on nutrient content of liquid organic

Sondang

Muflihayati

Anty

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Bacterial compatibility testing is very important to determine which bacteria will be consorted as bio activators when making liquid organic fertilizer. Bacteria that are inoculated into the manufacture of liquid organic fertilizers must have a cooperative and synergistic relationship with fellow bacteria to be efficient in their role as bio activators. To obtain this potential, a compatibility test against bacterial isolates needs to be carried out so that liquid organic fertilizers will be made efficient and effective. The research purposes are to obtain the compatible properties of functional bacterial isolates and their impact on liquid organic fertilizer’s nutritional content. The study was carried out at the Plant Protection Laboratory and Greenhouse of the Payakumbuh State Agricultural Polytechnic, West Sumatra from July to September 2022. The research method began with the rejuvenation of the dry bacterial isolates of Pseudomonas aeruginosa, Bacillus subtilis, Bacillus cereus, and Bacillus thuringiensis. Followed by the compatibility test using the double culturing method, a total of 20 treatments with three replications. The bacterial consortium is inoculated into the manufacture of fertilizer. The results of the compatibility test against P. aeruginosa and genera of Bacillus showed all treatments were compatible which was indicated by the absence of a halo inhibition zone with a compatibility index value between 0.67-1 and could be combined in a consortium as a bio activator. The best P2O5, K2O, and Ca nutrient content is found in the formula of fertilizer with bone meal additives.

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“…In a recent study, P. aeruginosa was characterized to produce certain metabolites, bioactive compounds, and antifungal compounds like 2,4-diacetylphloroglucinol (2,4-DAPG), pyoluteorin, and pyrrolnitrin that make this bacteria effective against a broad range of phytopathogenic fungal agents. 130 Similarly, P. stutzeri isolated from Withania somnifera seeds was found effective in the suppression of the mycelial growth of F. oxysporum var. ciceri and R. solani.…”

Section: Indirect Mechanismsmentioning

confidence: 99%

“…Recently, P. fluorescens was suggested as biocontrol agents because they protect plants against several fungal diseases, like black root-rot of tobacco, root-rot of wheat, and root-rot of a pea, etc. In a recent study, P. aeruginosa was characterized to produce certain metabolites, bioactive compounds, and antifungal compounds like 2,4-diacetylphloroglucinol (2,4-DAPG), pyoluteorin, and pyrrolnitrin that make this bacteria effective against a broad range of phytopathogenic fungal agents . Similarly, P. stutzeri isolated from Withania somnifera seeds was found effective in the suppression of the mycelial growth of F. oxysporum var.…”

Section: Indirect Mechanismsmentioning

confidence: 99%

Multifaceted Impacts of Plant-Beneficial Pseudomonas spp. in Managing Various Plant Diseases and Crop Yield Improvement

Mehmood,

Saeed,

Zafarullah

et al. 2023

ACS Omega

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The modern agricultural system has issues with the reduction of agricultural productivity due to a wide range of abiotic and biotic stresses. It is also expected that in the future the entire world population may rapidly increase and will surely demand more food. Farmers now utilize a massive quantity of synthetic fertilizers and pesticides for disease management and to increase food production. These synthetic fertilizers badly affect the environment, the texture of the soil, plant productivity, and human health. However, agricultural safety and sustainability depend on an ecofriendly and inexpensive biological application. In contrast to synthetic fertilizers, soil inoculation with plant-growth-promoting rhizobacteria (PGPR) is one of the excellent alternative options. In this regard, we focused on the best PGPR genera, Pseudomonas, which exists in the rhizosphere as well as inside the plant’s body and plays a role in sustainable agriculture. Many Pseudomonas spp. control plant pathogens and play an effective role in disease management through direct and indirect mechanisms. Pseudomonas spp. fix the amount of atmospheric nitrogen, solubilize phosphorus and potassium, and also produce phytohormones, lytic enzymes, volatile organic compounds, antibiotics, and secondary metabolites during stress conditions. These compounds stimulate plant growth by inducing systemic resistance and by inhibiting the growth of pathogens. Furthermore, pseudomonads also protect plants during different stress conditions like heavy metal pollution, osmosis, temperature, oxidative stress, etc. Now, several Pseudomonas-based commercial biological control products have been promoted and marketed, but there are a few limitations that hinder the development of this technology for extensive usage in agricultural systems. The variability among the members of Pseudomonas spp. draws attention to the huge research interest in this genus. There is a need to explore the potential of native Pseudomonas spp. as biocontrol agents and to use them in biopesticide development to support sustainable agriculture.

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Pseudomonas aeruginosa Ld-08 isolated from Lilium davidii exhibits antifungal and growth-promoting properties

Cited by 15 publications

References 71 publications

Evaluation of phyllosphere bacterial biocontrol agents for the suppression of rice foliar diseases

Evaluation of phyllosphere bacterial biocontrol agents for the suppression of rice foliar diseases

The effect of functional bacterial consortium on nutrient content of liquid organic

Multifaceted Impacts of Plant-Beneficial Pseudomonas spp. in Managing Various Plant Diseases and Crop Yield Improvement

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