New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica)
Four samples of surface soils, one with shoots of an unidentified moss species, were collected from a geothermal site on the northwest slope of volcanic Mt. Melbourne (northern Victoria Land, continental Antarctica) to determine physico-chemical properties, isolate existing strains of heterotrophic...
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Online Access: | http://hdl.handle.net/1885/87293 https://doi.org/10.1007/s00300-004-0612-6 https://openresearch-repository.anu.edu.au/bitstream/1885/87293/5/MigratedxPub16521_2004.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/87293/7/01_Bargagli_New_record_of_moss_and_2004.pdf.jpg |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/87293 2024-01-14T10:02:09+01:00 New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) Bargagli, R Skotnicki, Mary Marri, L Pepi, M Mackenzie, Anne Agnorelli, C http://hdl.handle.net/1885/87293 https://doi.org/10.1007/s00300-004-0612-6 https://openresearch-repository.anu.edu.au/bitstream/1885/87293/5/MigratedxPub16521_2004.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/87293/7/01_Bargagli_New_record_of_moss_and_2004.pdf.jpg unknown Springer 0722-4060 http://hdl.handle.net/1885/87293 doi:10.1007/s00300-004-0612-6 https://openresearch-repository.anu.edu.au/bitstream/1885/87293/5/MigratedxPub16521_2004.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/87293/7/01_Bargagli_New_record_of_moss_and_2004.pdf.jpg Polar Biology Keywords: molecular analysis moss new record physicochemical property soil chemistry soil property thermophilic bacterium Antarctica East Antarctica Mount Melbourne Bacteria (microorganisms) Bryophyta Campylopus Campylopus pyriformis Pohlia Pohlia nu Journal article ftanucanberra https://doi.org/10.1007/s00300-004-0612-6 2023-12-15T09:34:04Z Four samples of surface soils, one with shoots of an unidentified moss species, were collected from a geothermal site on the northwest slope of volcanic Mt. Melbourne (northern Victoria Land, continental Antarctica) to determine physico-chemical properties, isolate existing strains of heterotrophic microorganisms, and identify the moss species through molecular genetic techniques. Surface soil features such as temperature, grain-size, pH, moisture content, and isolated genera of bacteria, generally corresponded to those previously reported for other geothermal sites in Victoria Land. However, when compared with chemical characteristics of warm substrata from these sites, soils from the northwest slope of Mt. Melbourne showed lower contents of total N and water-extractable PO43- and K+, and relatively higher concentrations of Na, Fe, Mn, and of potentially toxic elements such as Cd and Pb. Preliminary results indicate that a new species of thermophilic bacteria growing in Fe-enriched medium was isolated. Although the study area lay only about 1.5 km from "Cryptogam Ridge", a geothermal site in the rim of the Mt. Melbourne summit crater with a well-developed population of the moss Campylopus pyriformis, molecular genetic analyses showed that the moss on the volcano slope is Pohlia nutans, a species closely related to populations some 110 km to the north in the Mt. Rittmann fumaroles. It was concluded that physico-chemical features of geothermal grounds may affect the colonisation history and dispersal of microorganisms and mosses. Article in Journal/Newspaper Antarc* Antarctica East Antarctica Polar Biology Victoria Land Australian National University: ANU Digital Collections East Antarctica Victoria Land Mount Melbourne ENVELOPE(164.700,164.700,-74.350,-74.350) Rittmann ENVELOPE(165.500,165.500,-73.450,-73.450) Polar Biology 27 7 423 431 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: molecular analysis moss new record physicochemical property soil chemistry soil property thermophilic bacterium Antarctica East Antarctica Mount Melbourne Bacteria (microorganisms) Bryophyta Campylopus Campylopus pyriformis Pohlia Pohlia nu |
spellingShingle |
Keywords: molecular analysis moss new record physicochemical property soil chemistry soil property thermophilic bacterium Antarctica East Antarctica Mount Melbourne Bacteria (microorganisms) Bryophyta Campylopus Campylopus pyriformis Pohlia Pohlia nu Bargagli, R Skotnicki, Mary Marri, L Pepi, M Mackenzie, Anne Agnorelli, C New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) |
topic_facet |
Keywords: molecular analysis moss new record physicochemical property soil chemistry soil property thermophilic bacterium Antarctica East Antarctica Mount Melbourne Bacteria (microorganisms) Bryophyta Campylopus Campylopus pyriformis Pohlia Pohlia nu |
description |
Four samples of surface soils, one with shoots of an unidentified moss species, were collected from a geothermal site on the northwest slope of volcanic Mt. Melbourne (northern Victoria Land, continental Antarctica) to determine physico-chemical properties, isolate existing strains of heterotrophic microorganisms, and identify the moss species through molecular genetic techniques. Surface soil features such as temperature, grain-size, pH, moisture content, and isolated genera of bacteria, generally corresponded to those previously reported for other geothermal sites in Victoria Land. However, when compared with chemical characteristics of warm substrata from these sites, soils from the northwest slope of Mt. Melbourne showed lower contents of total N and water-extractable PO43- and K+, and relatively higher concentrations of Na, Fe, Mn, and of potentially toxic elements such as Cd and Pb. Preliminary results indicate that a new species of thermophilic bacteria growing in Fe-enriched medium was isolated. Although the study area lay only about 1.5 km from "Cryptogam Ridge", a geothermal site in the rim of the Mt. Melbourne summit crater with a well-developed population of the moss Campylopus pyriformis, molecular genetic analyses showed that the moss on the volcano slope is Pohlia nutans, a species closely related to populations some 110 km to the north in the Mt. Rittmann fumaroles. It was concluded that physico-chemical features of geothermal grounds may affect the colonisation history and dispersal of microorganisms and mosses. |
format |
Article in Journal/Newspaper |
author |
Bargagli, R Skotnicki, Mary Marri, L Pepi, M Mackenzie, Anne Agnorelli, C |
author_facet |
Bargagli, R Skotnicki, Mary Marri, L Pepi, M Mackenzie, Anne Agnorelli, C |
author_sort |
Bargagli, R |
title |
New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) |
title_short |
New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) |
title_full |
New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) |
title_fullStr |
New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) |
title_full_unstemmed |
New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) |
title_sort |
new record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of mt. melbourne (antarctica) |
publisher |
Springer |
url |
http://hdl.handle.net/1885/87293 https://doi.org/10.1007/s00300-004-0612-6 https://openresearch-repository.anu.edu.au/bitstream/1885/87293/5/MigratedxPub16521_2004.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/87293/7/01_Bargagli_New_record_of_moss_and_2004.pdf.jpg |
long_lat |
ENVELOPE(164.700,164.700,-74.350,-74.350) ENVELOPE(165.500,165.500,-73.450,-73.450) |
geographic |
East Antarctica Victoria Land Mount Melbourne Rittmann |
geographic_facet |
East Antarctica Victoria Land Mount Melbourne Rittmann |
genre |
Antarc* Antarctica East Antarctica Polar Biology Victoria Land |
genre_facet |
Antarc* Antarctica East Antarctica Polar Biology Victoria Land |
op_source |
Polar Biology |
op_relation |
0722-4060 http://hdl.handle.net/1885/87293 doi:10.1007/s00300-004-0612-6 https://openresearch-repository.anu.edu.au/bitstream/1885/87293/5/MigratedxPub16521_2004.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/87293/7/01_Bargagli_New_record_of_moss_and_2004.pdf.jpg |
op_doi |
https://doi.org/10.1007/s00300-004-0612-6 |
container_title |
Polar Biology |
container_volume |
27 |
container_issue |
7 |
container_start_page |
423 |
op_container_end_page |
431 |
_version_ |
1788057001696165888 |