Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic Station

In maritime Antarctica soil enzymes have been little researched, mainly in the rhizosphere of the only two vascular plants that grow there: Colobanthus quitensis and Deschampsia antarctica. This study evaluated the activities of hydrolytic enzymes β-glucosidase, phosphatase and urease in th...

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Autores principales:	Machuca,A, Cuba-Díaz,M, Córdova,C
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2015
Materias:	Acid phosphatase β-glucosidase urease Colobanthus quitensis Deschampsia antarctica
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400002
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spelling	oai:scielo:S0718-951620150004000022016-01-14Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic StationMachuca,ACuba-Díaz,MCórdova,C Acid phosphatase β-glucosidase urease Colobanthus quitensis Deschampsia antarctica In maritime Antarctica soil enzymes have been little researched, mainly in the rhizosphere of the only two vascular plants that grow there: Colobanthus quitensis and Deschampsia antarctica. This study evaluated the activities of hydrolytic enzymes β-glucosidase, phosphatase and urease in the rhizospheric soils of C. quitensis and D. antarctica from three different sites in the Polish Arctowski Station in Antarctica. The sensitivity to temperature changes of the enzymes was also evaluated using two incubation temperatures (37 and 12 °C). The highest activities related to the C and P cycles, β-glucosidase and acid phosphatase, respectively, were detected in the rhizospheric soils at the site with the greatest variety of plant cover. Urease activity, related to the N cycle, was high in two of the three sites, and the lowest activity was detected at the site where only D. antarctica was found. The activity of the enzymes decreased when the temperature of incubation was reduced, but the magnitude of the decrease depended on the enzyme. β-glucosidase was the most sensitive to temperature change, whereas urease was least affected. Therefore, temperature changes in rhizospheric soils could lead to changes in substrate degradation rates and consequently in the availability of nutrients (C, N and P) for C. quitensis and D. antartica in maritime Antarctica.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.15 n.4 20152015-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400002en10.4067/S0718-95162015005000057
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Acid phosphatase β-glucosidase urease Colobanthus quitensis Deschampsia antarctica
spellingShingle	Acid phosphatase β-glucosidase urease Colobanthus quitensis Deschampsia antarctica Machuca,A Cuba-Díaz,M Córdova,C Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic Station
description	In maritime Antarctica soil enzymes have been little researched, mainly in the rhizosphere of the only two vascular plants that grow there: Colobanthus quitensis and Deschampsia antarctica. This study evaluated the activities of hydrolytic enzymes β-glucosidase, phosphatase and urease in the rhizospheric soils of C. quitensis and D. antarctica from three different sites in the Polish Arctowski Station in Antarctica. The sensitivity to temperature changes of the enzymes was also evaluated using two incubation temperatures (37 and 12 °C). The highest activities related to the C and P cycles, β-glucosidase and acid phosphatase, respectively, were detected in the rhizospheric soils at the site with the greatest variety of plant cover. Urease activity, related to the N cycle, was high in two of the three sites, and the lowest activity was detected at the site where only D. antarctica was found. The activity of the enzymes decreased when the temperature of incubation was reduced, but the magnitude of the decrease depended on the enzyme. β-glucosidase was the most sensitive to temperature change, whereas urease was least affected. Therefore, temperature changes in rhizospheric soils could lead to changes in substrate degradation rates and consequently in the availability of nutrients (C, N and P) for C. quitensis and D. antartica in maritime Antarctica.
author	Machuca,A Cuba-Díaz,M Córdova,C
author_facet	Machuca,A Cuba-Díaz,M Córdova,C
author_sort	Machuca,A
title	Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic Station
title_short	Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic Station
title_full	Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic Station
title_fullStr	Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic Station
title_full_unstemmed	Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic Station
title_sort	enzymes in the rhizosphere of plants growing in the vicinity of the polish arctowski antarctic station
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162015000400002
work_keys_str_mv	AT machucaa enzymesintherhizosphereofplantsgrowinginthevicinityofthepolisharctowskiantarcticstation AT cubadiazm enzymesintherhizosphereofplantsgrowinginthevicinityofthepolisharctowskiantarcticstation AT cordovac enzymesintherhizosphereofplantsgrowinginthevicinityofthepolisharctowskiantarcticstation
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Enzymes in the rhizosphere of plants growing in the vicinity of the Polish Arctowski Antarctic Station

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