Monoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation

We study here how soil bacterial communities of different ecosystems respond to disturbances caused by enrichments with monoterpenes that are common essential oil constituents. We used fenchone, 1,8-cineol and α-pinene, and soils from phrygana, a typical Mediterranean-type ecosystem where aromatic p...

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Autores principales:	Dimitris Chalkos, Katerina Karamanoli, Despoina Vokou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	aromatic plants biodegradation cineol fenchone microbial succession phrygana Botany QK1-989
Acceso en línea:	https://doaj.org/article/c030f286140c46898bf14f8933febadd
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spelling	oai:doaj.org-article:c030f286140c46898bf14f8933febadd2021-11-25T18:47:28ZMonoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation10.3390/plants101125362223-7747https://doaj.org/article/c030f286140c46898bf14f8933febadd2021-11-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2536https://doaj.org/toc/2223-7747We study here how soil bacterial communities of different ecosystems respond to disturbances caused by enrichments with monoterpenes that are common essential oil constituents. We used fenchone, 1,8-cineol and α-pinene, and soils from phrygana, a typical Mediterranean-type ecosystem where aromatic plants abound, and from another five ecosystem types, focusing on culturable bacteria. Patterns of response were common to all ecosystems, but responses themselves were not always as pronounced in phrygana as in the other ecosystems, suggesting that these enrichments are less of a disturbance there. More specifically, soil respiration and abundance of the bacterial communities increased, becoming from below two up to 16 times as high as in control soils (for both attributes) and remained at high levels as long as these compounds were present. Bacteria that can utilize these three compounds as substrates of growth became dominant members of the bacterial communities in the enriched soils. All changes were readily reversible once monoterpene addition stopped. Bacteria with the ability to utilize these monoterpenes as carbon sources were found in soils from all ecosystems, 15 strains in total, suggesting a rather universal presence; of these, six could also utilize the organic pollutants toluene or <i>p</i>-xylene. These results suggest also potential novel applications of monoterpenes in combating soil pollution.Dimitris ChalkosKaterina KaramanoliDespoina VokouMDPI AGarticlearomatic plantsbiodegradationcineolfenchonemicrobial successionphryganaBotanyQK1-989ENPlants, Vol 10, Iss 2536, p 2536 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aromatic plants biodegradation cineol fenchone microbial succession phrygana Botany QK1-989
spellingShingle	aromatic plants biodegradation cineol fenchone microbial succession phrygana Botany QK1-989 Dimitris Chalkos Katerina Karamanoli Despoina Vokou Monoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation
description	We study here how soil bacterial communities of different ecosystems respond to disturbances caused by enrichments with monoterpenes that are common essential oil constituents. We used fenchone, 1,8-cineol and α-pinene, and soils from phrygana, a typical Mediterranean-type ecosystem where aromatic plants abound, and from another five ecosystem types, focusing on culturable bacteria. Patterns of response were common to all ecosystems, but responses themselves were not always as pronounced in phrygana as in the other ecosystems, suggesting that these enrichments are less of a disturbance there. More specifically, soil respiration and abundance of the bacterial communities increased, becoming from below two up to 16 times as high as in control soils (for both attributes) and remained at high levels as long as these compounds were present. Bacteria that can utilize these three compounds as substrates of growth became dominant members of the bacterial communities in the enriched soils. All changes were readily reversible once monoterpene addition stopped. Bacteria with the ability to utilize these monoterpenes as carbon sources were found in soils from all ecosystems, 15 strains in total, suggesting a rather universal presence; of these, six could also utilize the organic pollutants toluene or <i>p</i>-xylene. These results suggest also potential novel applications of monoterpenes in combating soil pollution.
format	article
author	Dimitris Chalkos Katerina Karamanoli Despoina Vokou
author_facet	Dimitris Chalkos Katerina Karamanoli Despoina Vokou
author_sort	Dimitris Chalkos
title	Monoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation
title_short	Monoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation
title_full	Monoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation
title_fullStr	Monoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation
title_full_unstemmed	Monoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation
title_sort	monoterpene enrichments have positive impacts on soil bacterial communities and the potential of application in bioremediation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c030f286140c46898bf14f8933febadd
work_keys_str_mv	AT dimitrischalkos monoterpeneenrichmentshavepositiveimpactsonsoilbacterialcommunitiesandthepotentialofapplicationinbioremediation AT katerinakaramanoli monoterpeneenrichmentshavepositiveimpactsonsoilbacterialcommunitiesandthepotentialofapplicationinbioremediation AT despoinavokou monoterpeneenrichmentshavepositiveimpactsonsoilbacterialcommunitiesandthepotentialofapplicationinbioremediation
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Monoterpene Enrichments Have Positive Impacts on Soil Bacterial Communities and the Potential of Application in Bioremediation

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