Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents
Iron is the fourth most abundant element on earth. However, its low bioavailability is a key plant-growth limiting factor. Bacteria play an important role in plant growth promotion since they produce specific secondary metabolites that may increase macro- and micronutrient accessibility in soil. The...
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ftdoajarticles:oai:doaj.org/article:cf0920baf9b44b18b09ab179cc5b3b48 2023-05-15T13:34:44+02:00 Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents Michal Styczynski Gabriel Biegniewski Przemyslaw Decewicz Bartosz Rewerski Klaudia Debiec-Andrzejewska Lukasz Dziewit 2022-02-01T00:00:00Z https://doi.org/10.3389/fbioe.2022.772891 https://doaj.org/article/cf0920baf9b44b18b09ab179cc5b3b48 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fbioe.2022.772891/full https://doaj.org/toc/2296-4185 2296-4185 doi:10.3389/fbioe.2022.772891 https://doaj.org/article/cf0920baf9b44b18b09ab179cc5b3b48 Frontiers in Bioengineering and Biotechnology, Vol 10 (2022) Antarctica biosurfactant plant growth promoting bacteria psychrotolerant bacteria siderophore Biotechnology TP248.13-248.65 article 2022 ftdoajarticles https://doi.org/10.3389/fbioe.2022.772891 2022-12-31T04:03:27Z Iron is the fourth most abundant element on earth. However, its low bioavailability is a key plant-growth limiting factor. Bacteria play an important role in plant growth promotion since they produce specific secondary metabolites that may increase macro- and micronutrient accessibility in soil. Therefore, bacterial-derived iron chelators, as well as surface-active compounds, are recognised as essential to plant welfare. In this study, three cold-active Antarctic bacterial strains, i.e. Pseudomonas sp. ANT_H12B, Psychrobacter sp. ANT_H59 and Bacillus sp. ANT_WA51, were analysed. The physiological and genomic characterisation of these strains revealed their potential for plant growth promotion, reflected in the production of various biomolecules, including biosurfactants (that may lower the medium surface tension of even up to 53%) and siderophores (including ANT_H12B-produced mixed-type siderophore that demonstrated the highest production, reaching the concentration of up to 1.065 mM), increasing the availability of nutrients in the environment and neutralising fungal pathogens. Tested bacteria demonstrated an ability to promote the growth of a model plant, alfalfa, increasing shoots’ length and fresh biomass even up to 26 and 46% respectively; while their metabolites increased the bioavailability of iron in soil up to 40%. It was also revealed that the introduced strains did not disrupt physicochemical conditions and indigenous soil microbial composition, which suggests that they are promising amendments preserving the natural biodiversity of soil and increasing its fertility. Article in Journal/Newspaper Antarc* Antarctic Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Frontiers in Bioengineering and Biotechnology 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica biosurfactant plant growth promoting bacteria psychrotolerant bacteria siderophore Biotechnology TP248.13-248.65 |
spellingShingle |
Antarctica biosurfactant plant growth promoting bacteria psychrotolerant bacteria siderophore Biotechnology TP248.13-248.65 Michal Styczynski Gabriel Biegniewski Przemyslaw Decewicz Bartosz Rewerski Klaudia Debiec-Andrzejewska Lukasz Dziewit Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents |
topic_facet |
Antarctica biosurfactant plant growth promoting bacteria psychrotolerant bacteria siderophore Biotechnology TP248.13-248.65 |
description |
Iron is the fourth most abundant element on earth. However, its low bioavailability is a key plant-growth limiting factor. Bacteria play an important role in plant growth promotion since they produce specific secondary metabolites that may increase macro- and micronutrient accessibility in soil. Therefore, bacterial-derived iron chelators, as well as surface-active compounds, are recognised as essential to plant welfare. In this study, three cold-active Antarctic bacterial strains, i.e. Pseudomonas sp. ANT_H12B, Psychrobacter sp. ANT_H59 and Bacillus sp. ANT_WA51, were analysed. The physiological and genomic characterisation of these strains revealed their potential for plant growth promotion, reflected in the production of various biomolecules, including biosurfactants (that may lower the medium surface tension of even up to 53%) and siderophores (including ANT_H12B-produced mixed-type siderophore that demonstrated the highest production, reaching the concentration of up to 1.065 mM), increasing the availability of nutrients in the environment and neutralising fungal pathogens. Tested bacteria demonstrated an ability to promote the growth of a model plant, alfalfa, increasing shoots’ length and fresh biomass even up to 26 and 46% respectively; while their metabolites increased the bioavailability of iron in soil up to 40%. It was also revealed that the introduced strains did not disrupt physicochemical conditions and indigenous soil microbial composition, which suggests that they are promising amendments preserving the natural biodiversity of soil and increasing its fertility. |
format |
Article in Journal/Newspaper |
author |
Michal Styczynski Gabriel Biegniewski Przemyslaw Decewicz Bartosz Rewerski Klaudia Debiec-Andrzejewska Lukasz Dziewit |
author_facet |
Michal Styczynski Gabriel Biegniewski Przemyslaw Decewicz Bartosz Rewerski Klaudia Debiec-Andrzejewska Lukasz Dziewit |
author_sort |
Michal Styczynski |
title |
Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents |
title_short |
Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents |
title_full |
Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents |
title_fullStr |
Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents |
title_full_unstemmed |
Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents |
title_sort |
application of psychrotolerant antarctic bacteria and their metabolites as efficient plant growth promoting agents |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fbioe.2022.772891 https://doaj.org/article/cf0920baf9b44b18b09ab179cc5b3b48 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Frontiers in Bioengineering and Biotechnology, Vol 10 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fbioe.2022.772891/full https://doaj.org/toc/2296-4185 2296-4185 doi:10.3389/fbioe.2022.772891 https://doaj.org/article/cf0920baf9b44b18b09ab179cc5b3b48 |
op_doi |
https://doi.org/10.3389/fbioe.2022.772891 |
container_title |
Frontiers in Bioengineering and Biotechnology |
container_volume |
10 |
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1766056820232683520 |