Content of low-molecular-weight organic compounds in soils under Deschampsia antarctica and D. cespitosa (Poaceae)
Antarctic hairgrass Desсhampsia antarctica (Poaceae) is an important ecosystem engineer in coastal Antarctica and significantly affects properties and composition of soil organic matter. The objective of this study was to determine content and composition of low-molecular-weight organic compounds in...
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ftzenodo:oai:zenodo.org:2532072 2023-06-06T11:45:06+02:00 Content of low-molecular-weight organic compounds in soils under Deschampsia antarctica and D. cespitosa (Poaceae) Bedernichek, Tymur Zaimenko, Natalia Ivannikov, Roman Loya, Vlasta Anishchenko, Victor Partyka, Tetyana Khoetskyy, Pavlo 2018-12-03 https://zenodo.org/record/2532072 https://doi.org/10.5281/zenodo.2532072 rus rus doi:10.5281/zenodo.2532071 https://zenodo.org/record/2532072 https://doi.org/10.5281/zenodo.2532072 oai:zenodo.org:2532072 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Ukrainian Antarctic Journal 16 123-128 Desсhampsia antarctica Desсhampsia cespitosa water-soluble organic matter low-molecular-weight organic compounds phenols info:eu-repo/semantics/article publication-article 2018 ftzenodo https://doi.org/10.5281/zenodo.253207210.5281/zenodo.2532071 2023-04-13T21:49:52Z Antarctic hairgrass Desсhampsia antarctica (Poaceae) is an important ecosystem engineer in coastal Antarctica and significantly affects properties and composition of soil organic matter. The objective of this study was to determine content and composition of low-molecular-weight organic compounds in humus-turf horizon of leptosol under D. antarctica and in alfisol under D. cespitosa. Comparison of soil organic matter under these closely related species is important to find the markers typical for Antarctic soils only. Methods of high-performance liquid chromatography for determination of phenols, phenol carboxylic, phenyl carboxylic, hydroxybenzoic acids, coumarin derivatives and flavonoids were used. Results of this study showed that samples of the humus-sod horizon Hd of the soil under D. antarctica and D. cespitosa had almost similar pH (H2O), pH (CaCl2) and specific electrical conductivity values. Organic carbon content in soils under D. antarctica and D. cespitosa differed insignificantly – from 101 to 114 mg∙g-1. The investigated soils contain approximately the same amount of phenols and phenol carboxylic acids, as well as hydroxybenzoic acid. At the same time, less phenyl carboxylic acids and much less flavonoids were detected in the soil under D. cespitosa. In addition, there were no coumarin derivatives under D. cespitosa, but about 50 µg∙g-1 of these substances were found in initial Antarctic soil. All the classes of organic substances mentioned above are biologically active and can significantly affect soil and determine different processes in it. Thus, it can be concluded that observed differences were probably caused not only by environmental conditions but by the life cycle of D. antarctica. High content of phenyl carboxylic acids and coumarin derivatives in soil under this plant species indicates different pattern of transformation of soil organic matter; however further studies are required to support this idea Article in Journal/Newspaper Antarc* Antarctic Antarctica Zenodo Antarctic |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
Russian |
topic |
Desсhampsia antarctica Desсhampsia cespitosa water-soluble organic matter low-molecular-weight organic compounds phenols |
spellingShingle |
Desсhampsia antarctica Desсhampsia cespitosa water-soluble organic matter low-molecular-weight organic compounds phenols Bedernichek, Tymur Zaimenko, Natalia Ivannikov, Roman Loya, Vlasta Anishchenko, Victor Partyka, Tetyana Khoetskyy, Pavlo Content of low-molecular-weight organic compounds in soils under Deschampsia antarctica and D. cespitosa (Poaceae) |
topic_facet |
Desсhampsia antarctica Desсhampsia cespitosa water-soluble organic matter low-molecular-weight organic compounds phenols |
description |
Antarctic hairgrass Desсhampsia antarctica (Poaceae) is an important ecosystem engineer in coastal Antarctica and significantly affects properties and composition of soil organic matter. The objective of this study was to determine content and composition of low-molecular-weight organic compounds in humus-turf horizon of leptosol under D. antarctica and in alfisol under D. cespitosa. Comparison of soil organic matter under these closely related species is important to find the markers typical for Antarctic soils only. Methods of high-performance liquid chromatography for determination of phenols, phenol carboxylic, phenyl carboxylic, hydroxybenzoic acids, coumarin derivatives and flavonoids were used. Results of this study showed that samples of the humus-sod horizon Hd of the soil under D. antarctica and D. cespitosa had almost similar pH (H2O), pH (CaCl2) and specific electrical conductivity values. Organic carbon content in soils under D. antarctica and D. cespitosa differed insignificantly – from 101 to 114 mg∙g-1. The investigated soils contain approximately the same amount of phenols and phenol carboxylic acids, as well as hydroxybenzoic acid. At the same time, less phenyl carboxylic acids and much less flavonoids were detected in the soil under D. cespitosa. In addition, there were no coumarin derivatives under D. cespitosa, but about 50 µg∙g-1 of these substances were found in initial Antarctic soil. All the classes of organic substances mentioned above are biologically active and can significantly affect soil and determine different processes in it. Thus, it can be concluded that observed differences were probably caused not only by environmental conditions but by the life cycle of D. antarctica. High content of phenyl carboxylic acids and coumarin derivatives in soil under this plant species indicates different pattern of transformation of soil organic matter; however further studies are required to support this idea |
format |
Article in Journal/Newspaper |
author |
Bedernichek, Tymur Zaimenko, Natalia Ivannikov, Roman Loya, Vlasta Anishchenko, Victor Partyka, Tetyana Khoetskyy, Pavlo |
author_facet |
Bedernichek, Tymur Zaimenko, Natalia Ivannikov, Roman Loya, Vlasta Anishchenko, Victor Partyka, Tetyana Khoetskyy, Pavlo |
author_sort |
Bedernichek, Tymur |
title |
Content of low-molecular-weight organic compounds in soils under Deschampsia antarctica and D. cespitosa (Poaceae) |
title_short |
Content of low-molecular-weight organic compounds in soils under Deschampsia antarctica and D. cespitosa (Poaceae) |
title_full |
Content of low-molecular-weight organic compounds in soils under Deschampsia antarctica and D. cespitosa (Poaceae) |
title_fullStr |
Content of low-molecular-weight organic compounds in soils under Deschampsia antarctica and D. cespitosa (Poaceae) |
title_full_unstemmed |
Content of low-molecular-weight organic compounds in soils under Deschampsia antarctica and D. cespitosa (Poaceae) |
title_sort |
content of low-molecular-weight organic compounds in soils under deschampsia antarctica and d. cespitosa (poaceae) |
publishDate |
2018 |
url |
https://zenodo.org/record/2532072 https://doi.org/10.5281/zenodo.2532072 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Ukrainian Antarctic Journal 16 123-128 |
op_relation |
doi:10.5281/zenodo.2532071 https://zenodo.org/record/2532072 https://doi.org/10.5281/zenodo.2532072 oai:zenodo.org:2532072 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.253207210.5281/zenodo.2532071 |
_version_ |
1767965403705769984 |