Effect of plant growth-promoting rhizobacterial treatment on growth and physiological characteristics of Triticum aestivum L. under salt stress

Dong Gun Lee; Ji Min Lee; Chang Geun Choi; Hojoung Lee; Jun Cheol Moon; Namhyun Chung

doi:10.1186/s13765-021-00663-w

Effect of plant growth-promoting rhizobacterial treatment on growth and physiological characteristics of Triticum aestivum L. under salt stress

Dong Gun Lee, Ji Min Lee, Chang Geun Choi, Hojoung Lee, Jun Cheol Moon, Namhyun Chung

Department of Biosystems and Biotechnology

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Salinity stress is a serious abiotic stress that affects crop quality and production. Rhizospheric microbes have immense potential in synthesizing and releasing various compounds that regulate plant growth and soil physicochemical properties. The aim of the present study was to evaluate the efficacy of indole-3-acetic acid (IAA)-producing rhizobacteria as biofertilizers under salt stress. Among the isolated strains from various soil samples, Bacillus megaterium strain PN89 with multifarious plant growth-promoting traits was selected and used as a monoculture and co-culture with two other standard strains. The plant promoting activity was evaluated using the paper towel method and pot test to observe the effects on the early stage and vegetative growth of wheat (Triticum aestivum L.). The treatment using PGPR strain presented noticeable but varying effects on plant growth under salt stress, that is, PGPR treatment often displayed a significant increase in germination percentage, root and shoot length, and other growth parameters of wheat compared to those in the non-inoculated control. Thus, these results suggest that B. megaterium PN89 can be applied as a bio-fertilizer to alleviate salt stress in T. aestivum.

Original language	English
Article number	89
Journal	Applied Biological Chemistry
Volume	64
Issue number	1
DOIs	https://doi.org/10.1186/s13765-021-00663-w
Publication status	Published - 2021 Dec

Bibliographical note

Funding Information:
Korea Institute of Planning and Evaluation for Technology in Food Agriculture, Forestry, and Fisheries, Republic of Korea (grant No. 2016-116118-3) funded this research. Korea University funded this study.

Funding Information:
This work was supported by a grant (No. 2016-116118-3) from the Korea Institute of Planning and Evaluation for Technology in Food Agriculture, Forestry, and Fisheries. This research was supported by a grant from Korea University.

Publisher Copyright:
© 2021, The Author(s).

Keywords

Germination test
IAA production
PGPR
Salinity
Triticum aestivum L

ASJC Scopus subject areas

Biochemistry, Genetics and Molecular Biology(all)
Organic Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1186/s13765-021-00663-w

Cite this

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abstract = "Salinity stress is a serious abiotic stress that affects crop quality and production. Rhizospheric microbes have immense potential in synthesizing and releasing various compounds that regulate plant growth and soil physicochemical properties. The aim of the present study was to evaluate the efficacy of indole-3-acetic acid (IAA)-producing rhizobacteria as biofertilizers under salt stress. Among the isolated strains from various soil samples, Bacillus megaterium strain PN89 with multifarious plant growth-promoting traits was selected and used as a monoculture and co-culture with two other standard strains. The plant promoting activity was evaluated using the paper towel method and pot test to observe the effects on the early stage and vegetative growth of wheat (Triticum aestivum L.). The treatment using PGPR strain presented noticeable but varying effects on plant growth under salt stress, that is, PGPR treatment often displayed a significant increase in germination percentage, root and shoot length, and other growth parameters of wheat compared to those in the non-inoculated control. Thus, these results suggest that B. megaterium PN89 can be applied as a bio-fertilizer to alleviate salt stress in T. aestivum.",

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note = "Funding Information: Korea Institute of Planning and Evaluation for Technology in Food Agriculture, Forestry, and Fisheries, Republic of Korea (grant No. 2016-116118-3) funded this research. Korea University funded this study. Funding Information: This work was supported by a grant (No. 2016-116118-3) from the Korea Institute of Planning and Evaluation for Technology in Food Agriculture, Forestry, and Fisheries. This research was supported by a grant from Korea University. Publisher Copyright: {\textcopyright} 2021, The Author(s).",

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AU - Lee, Hojoung

AU - Moon, Jun Cheol

AU - Chung, Namhyun

N1 - Funding Information: Korea Institute of Planning and Evaluation for Technology in Food Agriculture, Forestry, and Fisheries, Republic of Korea (grant No. 2016-116118-3) funded this research. Korea University funded this study. Funding Information: This work was supported by a grant (No. 2016-116118-3) from the Korea Institute of Planning and Evaluation for Technology in Food Agriculture, Forestry, and Fisheries. This research was supported by a grant from Korea University. Publisher Copyright: © 2021, The Author(s).

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N2 - Salinity stress is a serious abiotic stress that affects crop quality and production. Rhizospheric microbes have immense potential in synthesizing and releasing various compounds that regulate plant growth and soil physicochemical properties. The aim of the present study was to evaluate the efficacy of indole-3-acetic acid (IAA)-producing rhizobacteria as biofertilizers under salt stress. Among the isolated strains from various soil samples, Bacillus megaterium strain PN89 with multifarious plant growth-promoting traits was selected and used as a monoculture and co-culture with two other standard strains. The plant promoting activity was evaluated using the paper towel method and pot test to observe the effects on the early stage and vegetative growth of wheat (Triticum aestivum L.). The treatment using PGPR strain presented noticeable but varying effects on plant growth under salt stress, that is, PGPR treatment often displayed a significant increase in germination percentage, root and shoot length, and other growth parameters of wheat compared to those in the non-inoculated control. Thus, these results suggest that B. megaterium PN89 can be applied as a bio-fertilizer to alleviate salt stress in T. aestivum.

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Effect of plant growth-promoting rhizobacterial treatment on growth and physiological characteristics of Triticum aestivum L. under salt stress

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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