Isolation, characterization, and optimization of indole acetic acid–producing Providencia species (7MM11) and their effect on tomato (Lycopersicon esculentum) seedlings

Shah, Rosita M.; Kajal, Chaudhari; Patel, Prittesh; Amaresan, N.; Krishnamurthy, R.

doi:10.1016/j.bcab.2020.101732

Cited by 10 publications

(3 citation statements)

References 35 publications

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“…The sample (1 gm) was suspended in 10 ml of sterile water and was serially diluted. The diluted sample was spread plated onto yeast extract mannitol agar (YEMA) and incubated for 24 hrs at 37°C (22). The isolates obtained were screened for its nitrogen fixing, phosphate and zinc solubilizing ability (16,26,27).…”

Section: Isolation and Identification Of Pgpr From Pisum Sativummentioning

confidence: 99%

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Impact of Lysinibacillus macroides, a potential plant growth promoting rhizobacteria on growth, yield and nutritional value of tomato Plant (Solanum lycopersicum L. f1 hybrid Sachriya)

et al. 2021

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Plant growth promoting bacteria enhance the growth in plants by solubilizing insoluble minerals, producing phytohormones and by secreting enzymes that resist pathogen attack. The present study was aimed at identifying the potential of Lysinibacillus macroides isolated from pea plant possessing rich microbial rhizobiome diversity in promoting the growth of tomato plant (Solanum lycopersicum L). Potential of L. macroides in the promotion of S. lycopersicum L. growth by increased shoot length, terminal leaf length and breadth was assessed. Anatomical sectioning of stem and root revealed no varied cellular pattern indicating that the supplemented bioculture is not toxic to S. lycopersicum. Plantlets treated with L. macroides along with organic compost showed an increased total phenol content (17.58±0.4 mg/g) compared to control samples (12.44±0.41 mg/g). Carbohydrate content was noticed to be around 1.3 folds higher in the L. macroides plus compost mixture supplemented slots compared to control sample. Significant increase in shoot length was evident in the L. macroides plus compost supplied slots (23.4±2.7 cm). Plant growth promoting properties might be due to the nitrogen fixing activity of the bacteria which enrich the soil composition along with the nutrients supplied by the organic compost. Rich microbial rhizobiome diversity in pea plant and the usage of L. macroides from a non-conventional source improves the diversity of the available PGPR for agricultural practices. Further research is needed to detect the mechanism of growth promotion and to explore the plant microbe interaction pathway.

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Section: Isolation and Identification Of Pgpr From Pisum Sativummentioning

confidence: 99%

“…enhance plant growth by secreting phytohormones such as indole acetic acid (21,22). Microbe and its secretory products are widely employed in disease inhibition and shelf life extension.…”

Section: Introductionmentioning

confidence: 99%

Impact of Lysinibacillus macroides, a potential plant growth promoting rhizobacteria on growth, yield and nutritional value of tomato Plant (Solanum lycopersicum L. f1 hybrid Sachriya)

et al. 2021

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“…Development of a pink color indicated IAA production after 30 min (Mahgoub et al, 2021 ). To analyze the amount of IAA produced by each microalgal isolate, absorbance was measured at 535 nm using a spectrophotometer (Rushabh et al, 2020 ). The concentration of IAA was then calculated based on the standard curve (y = 0.0029x + 0.0384, R 2 = 0.9988).…”

Section: Methodsmentioning

confidence: 99%

The functional identification and evaluation of endophytic bacteria sourced from the roots of tolerant Achyranthes bidentata to overcome monoculture problems of Rehmannia glutinosa

Zeng,

Liu,

Zhang

et al. 2024

Front. Microbiol.

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The isolation and identification of plant growth-promoting endophytic bacteria (PGPEB) from Achyranthes bidentata roots have profound theoretical and practical implications in ecological agriculture, particularly as bio-inoculants to address challenges associated with continuous monoculture. Our research revealed a significant increase in the abundance of these beneficial bacteria in A. bidentata rhizosphere soil under prolonged monoculture conditions, as shown by bioinformatics analysis. Subsequently, we isolated 563 strains of endophytic bacteria from A. bidentata roots. Functional characterization highlighted diverse plant growth-promoting traits among these bacteria, including the secretion of indole-3-acetic acid (IAA) ranging from 68.01 to 73.25 mg/L, phosphorus and potassium solubilization capacities, and antagonistic activity against pathogenic fungi (21.54%−50.81%). Through 16S rDNA sequencing, we identified nine strains exhibiting biocontrol and growth-promoting potential. Introduction of a synthetic microbial consortium (SMC) in pot experiments significantly increased root biomass by 48.19% in A. bidentata and 27.01% in replanted Rehmannia glutinosa. These findings provide innovative insights and strategies for addressing continuous cropping challenges, highlighting the practical promise of PGPEB from A. bidentata in ecological agriculture to overcome replanting obstacles for non-host plants like R. glutinosa, thereby promoting robust growth in medicinal plants.

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The structure, function, and utility of the rhizosphere microbiome of cereal crops

Chitara

Sharma

Parihar

et al. 2022

Microbial Resource Technologies for Sustainable Development

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Isolation, characterization, and optimization of indole acetic acid–producing Providencia species (7MM11) and their effect on tomato (Lycopersicon esculentum) seedlings

Cited by 10 publications

References 35 publications

Impact of Lysinibacillus macroides, a potential plant growth promoting rhizobacteria on growth, yield and nutritional value of tomato Plant (Solanum lycopersicum L. f1 hybrid Sachriya)

Impact of Lysinibacillus macroides, a potential plant growth promoting rhizobacteria on growth, yield and nutritional value of tomato Plant (Solanum lycopersicum L. f1 hybrid Sachriya)

The functional identification and evaluation of endophytic bacteria sourced from the roots of tolerant Achyranthes bidentata to overcome monoculture problems of Rehmannia glutinosa

The structure, function, and utility of the rhizosphere microbiome of cereal crops

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