Non-native PGPB consortium consisting of Pseudomonas sp. G31 and Azotobacter sp. PBC2 promoted winter wheat growth and slightly altered the native bacterial community

Abstract Plant growth-promoting bacteria (PGPB) are considered an effective eco-friendly biostimulator. However, relatively few studies have examined how PGPB affect the native bacterial community of major crops. Thus, this study investigates the impact of a PGPB consortium, comprising Pseudomonas s...

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Main Authors: J. Dobrzyński, I. Kulkova, Z. Jakubowska, B. Wróbel
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-86820-3
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author J. Dobrzyński
I. Kulkova
Z. Jakubowska
B. Wróbel
author_facet J. Dobrzyński
I. Kulkova
Z. Jakubowska
B. Wróbel
author_sort J. Dobrzyński
collection DOAJ
description Abstract Plant growth-promoting bacteria (PGPB) are considered an effective eco-friendly biostimulator. However, relatively few studies have examined how PGPB affect the native bacterial community of major crops. Thus, this study investigates the impact of a PGPB consortium, comprising Pseudomonas sp. G31 and Azotobacter sp. PBC2 (P1A), on the soil bacterial community of wheat under field conditions. As a result of PGPB application, we observed a significant increase in seed yield, as well as in nitrate content (1st and 3rd time points) and available phosphorus (2nd time point) in the rhizosphere compared to control. For the metataxonomic study, Next-Generation Sequencing was performed using the Illumina NovaSeq 6000 system. The consortium used did not have a significant impact on the diversity of native soil bacteria and slightly affected the taxonomic composition of bacteria with no significant changes in bacterial dominants at the phylum and genus level. Nevertheless, 3 weeks after application, P1A increased the relative abundance of Nitrospira which could have influenced the increase in nitrates in the rhizosphere, and also decreased Bdellovibrio. The results indicate that the P1A consortium, due to its ability to promote plant growth without detrimental alternations in the bacterial community of the soil, may be a potential candidate for commercialization.
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issn 2045-2322
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spelling doaj-art-80de260d4d844bdb83d2358129fa311c2025-01-26T12:31:02ZengNature PortfolioScientific Reports2045-23222025-01-0115111110.1038/s41598-025-86820-3Non-native PGPB consortium consisting of Pseudomonas sp. G31 and Azotobacter sp. PBC2 promoted winter wheat growth and slightly altered the native bacterial communityJ. Dobrzyński0I. Kulkova1Z. Jakubowska2B. Wróbel3Institute of Technology and Life Sciences—National Research Institute, FalentyInstitute of Technology and Life Sciences—National Research Institute, FalentyInstitute of Technology and Life Sciences—National Research Institute, FalentyInstitute of Technology and Life Sciences—National Research Institute, FalentyAbstract Plant growth-promoting bacteria (PGPB) are considered an effective eco-friendly biostimulator. However, relatively few studies have examined how PGPB affect the native bacterial community of major crops. Thus, this study investigates the impact of a PGPB consortium, comprising Pseudomonas sp. G31 and Azotobacter sp. PBC2 (P1A), on the soil bacterial community of wheat under field conditions. As a result of PGPB application, we observed a significant increase in seed yield, as well as in nitrate content (1st and 3rd time points) and available phosphorus (2nd time point) in the rhizosphere compared to control. For the metataxonomic study, Next-Generation Sequencing was performed using the Illumina NovaSeq 6000 system. The consortium used did not have a significant impact on the diversity of native soil bacteria and slightly affected the taxonomic composition of bacteria with no significant changes in bacterial dominants at the phylum and genus level. Nevertheless, 3 weeks after application, P1A increased the relative abundance of Nitrospira which could have influenced the increase in nitrates in the rhizosphere, and also decreased Bdellovibrio. The results indicate that the P1A consortium, due to its ability to promote plant growth without detrimental alternations in the bacterial community of the soil, may be a potential candidate for commercialization.https://doi.org/10.1038/s41598-025-86820-3BiostimulatorNative bacteriaSustainable agriculture
spellingShingle J. Dobrzyński
I. Kulkova
Z. Jakubowska
B. Wróbel
Non-native PGPB consortium consisting of Pseudomonas sp. G31 and Azotobacter sp. PBC2 promoted winter wheat growth and slightly altered the native bacterial community
Scientific Reports
Biostimulator
Native bacteria
Sustainable agriculture
title Non-native PGPB consortium consisting of Pseudomonas sp. G31 and Azotobacter sp. PBC2 promoted winter wheat growth and slightly altered the native bacterial community
title_full Non-native PGPB consortium consisting of Pseudomonas sp. G31 and Azotobacter sp. PBC2 promoted winter wheat growth and slightly altered the native bacterial community
title_fullStr Non-native PGPB consortium consisting of Pseudomonas sp. G31 and Azotobacter sp. PBC2 promoted winter wheat growth and slightly altered the native bacterial community
title_full_unstemmed Non-native PGPB consortium consisting of Pseudomonas sp. G31 and Azotobacter sp. PBC2 promoted winter wheat growth and slightly altered the native bacterial community
title_short Non-native PGPB consortium consisting of Pseudomonas sp. G31 and Azotobacter sp. PBC2 promoted winter wheat growth and slightly altered the native bacterial community
title_sort non native pgpb consortium consisting of pseudomonas sp g31 and azotobacter sp pbc2 promoted winter wheat growth and slightly altered the native bacterial community
topic Biostimulator
Native bacteria
Sustainable agriculture
url https://doi.org/10.1038/s41598-025-86820-3
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