Plant growth-promoting Rhizopseudomonas: expanded biotechnological purposes and antimicrobial resistance concern

Ferjani, Raoudha; Gharsa, Haythem; Estepa-Pérez, Vanesa; Gómez-Sanz, Elena; Cherni, Marwa; Mahjoubi, Mouna; Boudabous, Abdelatlif; Torres, Carmén; Ouzari, Hadda‐Imene

doi:10.1007/s13213-018-1389-0

Cited by 14 publications

(10 citation statements)

References 65 publications

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“…95 It is possible that the indiscriminate disposal of unused prescribed antibiotics in garbage and subsequent use of this garbage in agricultural fields as compost fertilizers or other unknown circumstances might have created selective pressure that consequently led to the development of antibiotic-resistant microbes in the soil. 95-97 Ferjani et al, (2018) 98 also found a low rate of antibiotic resistance among isolated PGPR isolates, which could be used for the development of microbial inoculums to enhance plant growth while considering human health. The sensitivity of isolates E-2, T-2, and T-1 to broadspectrum antibiotics such as chloramphenicol, kanamycin, and gentamicin makes them suitable for safe (readily available antibiotics may help immediate prevention of infection or disease outbreak) industrial production and formulation of biofertilizers for field application.…”

Section: Discussionmentioning

confidence: 99%

“…The sensitivity of isolates E-2, T-2, and T-1 to broadspectrum antibiotics such as chloramphenicol, kanamycin, and gentamicin makes them suitable for safe (readily available antibiotics may help immediate prevention of infection or disease outbreak) industrial production and formulation of biofertilizers for field application. Although antibiotic resistance of PGPR has been sporadically investigated by others, 98 the risk status of PGPR has also been explored in this study by literature search and 16S-rDNA based identification.…”

Section: Discussionmentioning

confidence: 99%

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Validation and Evaluation of Plant Growth Promoting Potential of Rhizobacteria Towards Paddy Plants

Kumari¹,

Swarupa²,

Kumar³

2022

J. Pure Appl. Microbiol.

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This study aimed to characterize, validate, and evaluate the plant growth potential of bacterial isolates (E-2, T-2, and T-1) to determine their suitability for application as biofertilizers and/or plant-biostimulants. The plant growth-promoting potential of bacteria (E-2, T-2, and T-1) has been validated in a hydroponic study on paddy plants by inoculating bacterial isolates and monitoring the phenotypic and plant growth responses. The applicability of bacteria was tested based on their tolerance to salinity, susceptibility to antibiotics, and identification based on 16S rDNA sequencing. The isolates E-2, T-2, and T-1 improved plant growth variably and significantly (P < 0.05 at 95% confidence interval) when inoculated into the plant growth matrix, ensuring nutrient availability to the plants grown under a nutrient (nitrate or phosphate) deprived growth matrix. Isolates E-2, T-2, and T-1 grew at salt (NaCl) concentrations of 7%, 6%, and 6%, respectively, and were tolerant to saline conditions. Although these three isolates exhibited resistance to certain antibiotics, they were susceptible to a large number of readily available antibiotics. Isolates E-2, T-2, and T-1 were identified as Klebsiella sp. strain BAB-6433, Citrobacter freundii strain R2A5, and Citrobacter sp. DY1981 respectively, and all of these may be assigned to Risk-Group-2 and hence are safe in view of their susceptibility to readily available antibiotics. Hence, these isolates are promising for extensive evaluation as bioinoculants to ecologically improve soil quality, fertility, crop growth, and yield.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Validation and Evaluation of Plant Growth Promoting Potential of Rhizobacteria Towards Paddy Plants

Kumari¹,

Swarupa²,

Kumar³

2022

J. Pure Appl. Microbiol.

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“…Amongst various bacterial bio-agents, Pseudomonas spp. is the most frequently distributed gram-negative bacteria that can colonize in different environmental conditions [15]. Due to its versatile metabolic capacity and widespread occurrence, this genus is mainly used as a crop inoculant that enhances the plant's growth-promoting activities in numerous ways [16].…”

Section: Introductionmentioning

confidence: 99%

Application of Trichoderma viride and Pseudomonas fluorescens to Cabbage (Brassica oleracea L.) Improves Both Its Seedling Quality and Field Performance

Vij

Sharma

et al. 2022

Sustainability

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Inoculating cabbage (Brassica oleracea L.) plants with bio-control agents and plant growth-promoting rhizobacteria (PGPR) can considerably improve seedling quality, growth, yield, and yield-related parameters over time. An experiment was conducted to evaluate the bio-fertilizer efficiency of a bio-control agent (Trichoderma viride) alone or in combination with PGPR (Pseudomonas fluorescens). Accordingly, various seedling quality and yield parameters were studied, and the results suggested that all the co-inoculation treatments displayed beneficial effects. Still, the combination of Trichoderma viride and Pseudomonas fluorescens showed the maximum increment in all the parameters considered, i.e., seedling emergence, seedling height, stem diameter, leaf area, root length, seedling vigour index, seedling fresh weight, seedling dry weight, total chlorophyll content, plant height at 30 DAT, plant height at 60 DAT, leaf numbers, leaf area index, root length, root dry weight, number of non-wrapping leaves, number of wrapping leaves, head weight, head diameter, and head yield. The findings appear to offer a viable bio-control technique for crop protection as bio-fertilizers bundled in a single formulation.

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“…Out of six antibiotics, the bacterial isolate seemed to be resistant to only three antibiotics such as penicillin, erythromycin, and chloramphenicol. According to Ferjani et al (2019), Pseudomonas rhizobacteria expressed a low rate of antibiotic resistance as a result of various pathogens and human activities. Because of low antibiotic resistance, the noxious effects and the evolution of resistance in the environment are limited.…”

Section: Discussionmentioning

confidence: 99%

Multitrait Pseudomonas sp. isolated from the rhizosphere of Bergenia ciliata acts as a growth-promoting bioinoculant for plants

Thakur

Srivastava

Yadav

2023

Front. Sustain. Food Syst.

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Multifunctional plant growth-promoting bioinoculants are used to enhance growth, harvest yields, and add economic value to agricultural crops. In this study, such bioinoculant, BC-II-20 (Pseudomonas sp.), was isolated from the rhizospheric soil of a medicinal plant Bergenia ciliata from the Garhwal Himalayas, Uttarakhand, India. After characterization, supplementation with Pseudomonas sp. was used to study growth stimulation in a commercially important medicinal plant, Andrographis paniculata (Kalmegh), and it depicted enhanced physiological growth parameters under controlled conditions. Bacterial seed priming and also supplementation led to early and increased germination and plants displayed better vegetative growth during the entire growth stages. Early initiation of flowers and the appearance of pods occurred in inoculated plants, ultimately leading to the reduction in the life cycle of the plant. At the time of harvesting, there was an increase in the physiological parameters such as shoot length (38%), root length (14%), fresh weight (57%), dry weight (60%), number of panicles, and root branching. Photosynthetic efficiency was also higher, and ultimately, overall plant growth was improved by bacterial inoculation. The eco-friendly and sustainable use of this bioinoculant will provide an alternative to harmful chemical fertilizers and has become increasingly important. In conclusion, we reported a promising bioinoculant having plant growth-promoting traits, which promotes growth and development in A. paniculata and may be applied to other plants also.

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Plant growth-promoting Rhizopseudomonas: expanded biotechnological purposes and antimicrobial resistance concern

Cited by 14 publications

References 65 publications

Validation and Evaluation of Plant Growth Promoting Potential of Rhizobacteria Towards Paddy Plants

Validation and Evaluation of Plant Growth Promoting Potential of Rhizobacteria Towards Paddy Plants

Application of Trichoderma viride and Pseudomonas fluorescens to Cabbage (Brassica oleracea L.) Improves Both Its Seedling Quality and Field Performance

Multitrait Pseudomonas sp. isolated from the rhizosphere of Bergenia ciliata acts as a growth-promoting bioinoculant for plants

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