New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) in 2002

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: New record of moss and thermophilic bacteria species and physico-chemical properties of geothermal soils on the northwest slope of Mt. Melbourne (Antarctica) in 2002
Description:
Abstract:
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 (northwest Victoria Land, continental Antarctica) to determine physico-chemical properties, isolate existing strains of etherotrophic microorganisms, and identify the moss species through molecular genetic techniques. Surface soils features such as temperatures, grain-size, pH, moisture content and isolated genera of bacteria, generally corresponded to those previously reported for other geothermal site 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 high 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 analysis showed that the moss of the volcano slope is Pholia nutans, a species closely related to some populations 110 km to the north in the Mt. Rittmann fumaroles. It was concluded that physico-chemical features of geothermal grounds may affects the colonization history and dispersal of microorganisms and mosses.
Purpose:
Not Available
Supplemental_Information:
Not Available
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 164.6632
East_Bounding_Coordinate: 164.6632
North_Bounding_Coordinate: -74.3499
South_Bounding_Coordinate: -74.3499
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL MOISTURE/WATER CONTENT
Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL PH
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > MICRONUTRIENTS/TRACE ELEMENTS
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > ORGANIC MATTER
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE
Theme_Keyword: EARTH SCIENCE > OCEANS > MARINE VOLCANISM > HYDROTHERMAL VENTS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > GEOTHERMAL DYNAMICS > GEOTHERMAL TEMPERATURE
Theme_Keyword: EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > SOIL TEMPERATURE
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > BACTERIA/ARCHAEA
Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MOSSES/HORNWORTS/LIVERWORTS
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > BIOGEOCHEMICAL CYCLES
Theme_Keyword: FIELD INVESTIGATION
Theme_Keyword: ION CHROMATOGRAPHS
Theme_Keyword: AA > ATOMIC ABSORPTION SPECTROMETER
Theme_Keyword: AAS > ATOMIC ABSORPTION SPECTROPHOTOMETRY
Theme_Keyword: (sector 1) Mosses
Theme_Keyword: (sector 1) Terra Victoria
Theme_Keyword: Soil
Theme_Keyword: Moss
Theme_Keyword: FARMING
Theme_Keyword: BIOTA
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: INLAND WATERS
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH (WESTERN - ISO 8859-1 CHAR SET)
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA > MOUNT MELBOURNE
Place_Keyword: CONTINENT > ANTARCTICA > VICTORIA LAND
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
none
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Four surface soil sample (with and without mosses) were collected along a thermal gradient and placed in sterile polyethylene bags. In Terra Nova Bay station the water content and pH were determined in soil subsample. In Italy, in soil samples was determined the total concentration of organic C and N. Concentrations of major ions and trace elements were determined by ion chromatography and atomic absorption spectrometry in water soil extracts. Isolation, maintenance and characterization of bacteria, moss DNA isolation, amplification and sequencing were carried out in Italian laboratories.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: UNISI/DSA > Dipartimento di Science Ambientali (G. Sarfatti), Universita Delgi Studi di Siena, Italy
Contact_Person: ROBERTO BARGAGLI
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: via P. A. Mattioli n.4
City: Siena
State_or_Province: Tuscany
Postal_Code: 53100
Country: Italy
Contact_Voice_Telephone: +39 0577 232828
Contact_Facsimile_Telephone: +39 0577 232806
Contact_Electronic_Mail_Address: bargagli@unisi.it
Resource_Description: Thermophilic_bacteria_Melbourne
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.unisi.it/ricerca/dip/dba/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 20041122
Metadata_Review_Date: 20050628
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GCMD User Support Office
Contact_Organization: NASA Global Change Master Directory
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Not Available
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: Not Available
Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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