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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Online Access: | http://dx.doi.org/10.3389/fbioe.2022.772891 https://www.frontiersin.org/articles/10.3389/fbioe.2022.772891/full |
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crfrontiers:10.3389/fbioe.2022.772891 2024-06-23T07:47:52+00:00 Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents Styczynski, Michal Biegniewski, Gabriel Decewicz, Przemyslaw Rewerski, Bartosz Debiec-Andrzejewska, Klaudia Dziewit, Lukasz Narodowe Centrum Nauki 2022 http://dx.doi.org/10.3389/fbioe.2022.772891 https://www.frontiersin.org/articles/10.3389/fbioe.2022.772891/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Bioengineering and Biotechnology volume 10 ISSN 2296-4185 journal-article 2022 crfrontiers https://doi.org/10.3389/fbioe.2022.772891 2024-06-04T05:51:27Z 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 Frontiers (Publisher) Antarctic Frontiers in Bioengineering and Biotechnology 10 |
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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. |
author2 |
Narodowe Centrum Nauki |
format |
Article in Journal/Newspaper |
author |
Styczynski, Michal Biegniewski, Gabriel Decewicz, Przemyslaw Rewerski, Bartosz Debiec-Andrzejewska, Klaudia Dziewit, Lukasz |
spellingShingle |
Styczynski, Michal Biegniewski, Gabriel Decewicz, Przemyslaw Rewerski, Bartosz Debiec-Andrzejewska, Klaudia Dziewit, Lukasz Application of Psychrotolerant Antarctic Bacteria and Their Metabolites as Efficient Plant Growth Promoting Agents |
author_facet |
Styczynski, Michal Biegniewski, Gabriel Decewicz, Przemyslaw Rewerski, Bartosz Debiec-Andrzejewska, Klaudia Dziewit, Lukasz |
author_sort |
Styczynski, Michal |
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 SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/fbioe.2022.772891 https://www.frontiersin.org/articles/10.3389/fbioe.2022.772891/full |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Frontiers in Bioengineering and Biotechnology volume 10 ISSN 2296-4185 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fbioe.2022.772891 |
container_title |
Frontiers in Bioengineering and Biotechnology |
container_volume |
10 |
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1802638076190654464 |