Impact of plant growth promoting rhizobacteria Serratia nematodiphila RGK and Pseudomonas plecoglossicida RGK on secondary metabolites of turmeric rhizome

Jagtap, Ruddhi R.; Mali, G. V.; Waghmare, Shailesh R.; Nadaf, Naiem H.; Nimbalkar, Mansingraj S.; Sonawane, Kailas D.

doi:10.1016/j.bcab.2023.102622

Cited by 20 publications

(12 citation statements)

References 41 publications

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“…In contrast to our finding, Jagtap et al. (2023) reported that Pseudomonas plecoglossicida RGK exhibits the capacity for hydrogen cyanide (HCN) production. Volynchikova and Kim (2023) demonstrated that P. plecoglossicida suppressed Phytophtora capsici through inhibition of mycelial growth and zoospore germination on M9 minimal medium and V8 juice broth.…”

Section: Discussioncontrasting

confidence: 99%

“…This aligns with recent studies of Jagtap et al. (2023), who reported that P. plecoglossicida has the capacity to solubilize phosphate, zinc and potassium as well as the potential to produce IAA, siderophores. The enhanced accessibility of phosphorus by Pseudomonas is demonstrated to be pivotal in essential plant processes, including energy transfer and nucleic acid synthesis (Malhotra et al., 2018).…”

Section: Discussionsupporting

confidence: 92%

“…This outcome was corroborated through the examination of hydrocyanic acid production, which was found to be absent. In contrast to our finding, Jagtap et al (2023) Mechanistically, this antifungal effect may be attributed to the production of antagonistic compounds or enzymes that disrupt the fungal cell wall or interfere with key biological processes required for fungal growth. The micrographs revealed that the hyphal of the pathogen harvested from the confrontation zone with the rhizobacterium were abnormal, swollen and damaged, with broken and destructed cell walls.…”

Section: Ta B L Econtrasting

confidence: 99%

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Pseudomonas plecoglossicida(NR_114226) as a novel biocontrol agent against Fusarium crown rot of wheat

Makhlouf,

Karima,

Slimane

2024

Journal of Phytopathology

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Fusarium crown rot (FCR) poses a significant threat to wheat crops, causing substantial grain loss and mycotoxin contamination. While chemical fungicides have been effective in controlling this disease, the need for environmentally friendly alternatives is paramount due to concerns about human health and fungicide resistance. This study delves into the efficacy of Pseudomonas plecoglossicida (NR_114226) as a plant growth‐promoting and biocontrol agent against Fusarium graminearum (ON685926) and Fusarium pseudograminearum (ON687723). Greenhouse experiments demonstrated a significant reduction in disease severity by 66.06% through seed treatment with this rhizobacterial strain in soil already infested with fungal pathogens. Moreover, significant growth enhancement occurred in F. pseudograminearum‐infected seedlings treated with P. plecoglossicida (F4 + P57), increasing plant height from 13.8 to 33.1 cm and root length from 9.56 to 19.62 cm, with notable improvements in fresh and dry weights. The study further validated these findings through enzymatic assays and analysis of synthesized secondary metabolites, including chitinase, protease, hydrocyanic acid, indole acetic acid, phosphate solubilization and siderophore production. These results strongly suggest that P. plecoglossicida has the potential to serve as an effective biocontrol agent against soilborne cereal pathogens.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 92%

Section: Ta B L Econtrasting

confidence: 99%

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Pseudomonas plecoglossicida(NR_114226) as a novel biocontrol agent against Fusarium crown rot of wheat

Makhlouf,

Karima,

Slimane

2024

Journal of Phytopathology

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“…It has also been reported that after the application of Serratia spp. strains, not only did the growth parameters of plants such as Origanum L., chamomile, and turmeric improve, but also the essential oil content of the plants increased significantly ( Alraey et al, 2019 ; Mostafa et al, 2019 ; Jagtap et al, 2023 ). S. marcescens AL2-16 also enhanced the growth and biomass of the medical plant Achyranthes aspera L. growth ( Devi et al, 2016 ).…”

Section: Serratia Spp Strains As Plant Growth-promoting Bact...mentioning

confidence: 99%

“…Nevertheless, we believe that there is a need for further studies of halotolerant Serratia spp. strains which have shown tolerance to salinity from 5.8 to 10% NaCl and significant potential in promoting plant growth under normal conditions ( George et al, 2013 ; Hamane et al, 2023 ; Jagtap et al, 2023 ). Screening strains of Serratia spp.…”

Section: Alleviation Of Salinity Stress In Plants By Serrat...mentioning

confidence: 99%

Serratia spp. as plant growth-promoting bacteria alleviating salinity, drought, and nutrient imbalance stresses

Kulkova,

Wróbel,

Dobrzyński

2024

Front. Microbiol.

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In agricultural environments, plants are often exposed to abiotic stresses including temperature extremes, salt stress, drought, and heavy metal soil contamination, which leads to significant economic losses worldwide. Especially salt stress and drought pose serious challenges since they induce ionic toxicity, osmotic stress, and oxidative stress in plants. A potential solution can be the application of bacteria of the Serratia spp. known to promote plant growth under normal conditions Thus the mini-review aims to summarize the current knowledge on plant growth promotion by Serratia spp. (under the conditions of salinity stress, drought, and nutrient deficit) and highlight areas for development in the field. So far, it has been proven that Serratia spp. strains exhibit a variety of traits contributing to enhanced plant growth and stress tolerance, such as phytohormone production, ACC deaminase activity, nitrogen fixation, P and Zn solubilization, antioxidant properties improvement, and modulation of gene expression. Nevertheless, further research on Serratia spp. is needed, especially on two subjects: elucidating its mechanisms of action on plants at the molecular level and the effects of Serratia spp. on the indigenous soil and plant microbiota and, particularly, the rhizosphere. In both cases, it is advisable to use omics techniques to gain in-depth insights into the issues. Additionally, some strains of Serratia spp. may be phytopathogens, therefore studies to rule out this possibility are recommended prior to field trials. It is believed that by improving said knowledge the potential of Serratia spp. to stimulate plant growth will increase and strains from the genus will serve as an eco-friendly biofertilizer in sustainable agriculture more often.

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Rhizobacterial Isolates from Prosopis limensis Promote the Growth of Raphanus sativus L. Under Salt Stress

Flores Clavo,

Valladolid-Suyón,

Reinoza-Farroñan

et al. 2023

Curr Microbiol

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Microbial biotechnology employes techniques that rely based on the natural interactions that occur in ecosystems. Bacteria, including rhizobacteria, play an important role in plant growth, providing agricultural crops with an alternative that can mitigate the negative effects of abiotic stress, such as those caused by saline environments. In this study, bacterial isolates were obtained from soil and roots of Prosopis limensis Bentham from the department of Lambayeque, Peru. This region has high salinity levels, therefore, the collected samples were used to isolate plant growth-promoting rhizobacteria (PGPR), which were identified through morphological, and physical-biochemical characteristics. These salt tolerant bacteria were screened phosphate solubilization, indole acetic acid, deaminase activity and molecular characterization by 16S rDNA sequencing. Eighteen samples from saline soils of the Prosopis limensis plants in the northern coastal desert of San Jose district, Lambayeque, Peru. The bacterial isolates were screened for salt tolerance ranging from 2 to 10%, a total of 78 isolates were found. Isolates 03, 13 and 31 showed maximum salt tolerance at 10%, in vitro ACC production, phosphate solubilization and IAA production. The three isolates were identified by sequencing the amplified 16S rRNA gene and were found to be Pseudomonas sp. 03 (MW604823), Pseudomonas sp. 13 (MW604824) and Bordetella sp. 31 (MW604826). These microorganisms promoted the germination of radish plants and increased the germination rates for treatments T2, T3 and T4 by 129, 124 and 118% respectively. The beneficial effects of salt tolerant PGPR isolates isolated from saline environments can be new species, used to overcome the detrimental effects of salt stress on plants. The biochemical response and inoculation of the three isolates prove the potential of using these strains as a source of products that can be employed for the development of new compounds proving their potential as biofertilizers for saline environments.

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Impact of plant growth promoting rhizobacteria Serratia nematodiphila RGK and Pseudomonas plecoglossicida RGK on secondary metabolites of turmeric rhizome

Cited by 20 publications

References 41 publications

Pseudomonas plecoglossicida(NR_114226) as a novel biocontrol agent against Fusarium crown rot of wheat

Pseudomonas plecoglossicida(NR_114226) as a novel biocontrol agent against Fusarium crown rot of wheat

Serratia spp. as plant growth-promoting bacteria alleviating salinity, drought, and nutrient imbalance stresses

Rhizobacterial Isolates from Prosopis limensis Promote the Growth of Raphanus sativus L. Under Salt Stress

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