Bacillus subtilis can modulate the growth and root architecture in soybean through volatile organic compounds

Bacillus subtilis colonizes rhizosphere of plants and releases some volatile organic compounds (VOCs) that can modulate the growth and root architecture in several plants. However, the influence of VOCs on growth and root architecture in soybean remains unknown. In this study, we hypothesized that V...

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Published in:Theoretical and experimental plant physiology 2020-06, Vol.32 (2), p.99-108
Main Authors: Bavaresco, Lorrayne Guimarães, Osco, Lucas Prado, Araujo, Ademir Sergio Ferreira, Mendes, Lucas William, Bonifacio, Aurenivia, Araújo, Fábio Fernando
Format: Article
Language:English
Subjects:
Architecture
Bacillus subtilis
Biomedical and Life Sciences
Diameters
Exposure
Growth chambers
Life Sciences
Microorganisms
Nutrients
Organic compounds
Plant biomass
Plant growth
Principal components analysis
Rhizosphere
Roots
Soybeans
VOCs
Volatile organic compounds
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cited_by cdi_FETCH-LOGICAL-c319t-3df64905a7cb4e82babaa1d3f3b14833e24aee30d5c83ed0ad02bd3b887fb34d3
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container_issue 2
container_start_page 99
container_title Theoretical and experimental plant physiology
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creator Bavaresco, Lorrayne Guimarães
Osco, Lucas Prado
Araujo, Ademir Sergio Ferreira
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description Bacillus subtilis colonizes rhizosphere of plants and releases some volatile organic compounds (VOCs) that can modulate the growth and root architecture in several plants. However, the influence of VOCs on growth and root architecture in soybean remains unknown. In this study, we hypothesized that VOCs would enhance the growth of soybean and change its root architecture. Thus, experiments under growth chamber were carried out to investigate the effect of VOCs released by B. subtilis AP-3 on growth and root architecture of soybean (control and plants exposed to VOCs) and eight replicates. Plant growth and root architecture parameters in soybean were measured 20 days after soybean emergence. Soybean exposed to microbial VOCs displayed significant increase in plant biomass (88% and 18% for shoot and roots, respectively) than the control. Microbial VOCs changed the root architecture of soybean that exhibited roots with higher length, diameter, surface area, and volume. The principal component analysis differentiated plants exposed to VOCs from those plants without exposure. The findings from this study are important since the modulation of root architecture can improve the absorption of water and nutrients from the soil.
doi_str_mv 10.1007/s40626-020-00173-y
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subjects Architecture
Bacillus subtilis
Biomedical and Life Sciences
Diameters
Exposure
Growth chambers
Life Sciences
Microorganisms
Nutrients
Organic compounds
Plant biomass
Plant growth
Principal components analysis
Rhizosphere
Roots
Soybeans
VOCs
Volatile organic compounds
title Bacillus subtilis can modulate the growth and root architecture in soybean through volatile organic compounds
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