Abstract:
This study investigated the status of dark septate (DS) fungi in Antarctic plant and soil communities, with the aim of determining the abundance of DS fungi in plant roots and rhizoids, their taxonomic affinities and their symbiotic status. Abundances of fungal hyphae were recorded in roots and rhizoids, and fungi were isolated and identified. Sequencing of ITS (internal transcribed spacer) regions of rDNA indicated that some isolates share taxonomic affinities with fungi of known symbiotic status. Synthesis experiments assessed the effects of DS fungal isolates, including H. ericae, on the growth and nutrient balance of their host plants. Seeds of Deschampsia antarctica and Colobanthus quitensis were collected for use in ecophysiological experiments.
Keywords:
Cephaloziella varians, Colobanthus quitensis, Deschampsia antarctica, dark septate fungi, dark septate mycelia, ecophysiology, microbial diversity, mycorrhiza, nutrient balance, rhizoids, roots
| Access Constraints: | Requests for data can be made via the UK Polar Data Centre (UK PDC) at BAS. |
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| Creation Date: | 2007-06-28 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Rebecca Upson |
| Role(s) | Investigator |
| Name | Sir David Read |
| Role(s) | Investigator |
| Name | Dr Kevin Newsham |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Upson, R., Newsham, K.K., Bridge, P.D., Pearce, D.A. & Read, D.J. (2009). Taxonomic affinities of dark septate root endophytes in the roots of Colobanthus quitensis and Deschampsia antarctica, the two native Antarctic vascular plant species. Fungal Ecology 2, 184-196. Upson, R., Newsham, K.K., Bridge, P.D., Pearce, D.A. & Read, D.J. Phylogenetic affinities of dark septate endophytes in the roots of Deschampsia antarctica and Colobanthus quitensis, the two native Antarctic vascular plant species. Fungal Ecology. DOI: 10.1016/j.funeco.2009.02.004 Upson, R., Read, D.J. & Newsham, K.K. (2009). Nitrogen form influences plant response to dark septate root endophytes. Mycorrhiza. DOI: 10.1007/s00572-009-0260-3. Newsham, K.K., Upson, R. & Read, D.J. (2009). Mycorrhizas and dark septate endophytes in polar regions. Fungal Ecology 2, 10-20. Upson, R., Newsham, K.K. & Read, D.J. (2008). Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic. Arctic, Antarctic and Alpine Research 40, 592-599. Upson, R., Newsham, K.K. & Read, D.J. (2007) Widespread association between the ericoid mycorrhizal fungus Rhizoscyphus ericae and a leafy liverwort in the maritime and sub-Antarctic. New Phytologist 176, 460-471 Upson, R. (2006) The status of dark septate root fungal endophytes in Antarctic plant and soil communities. PhD thesis, University of Sheffield. Upson, R., Newsham, K. K. and Read D.J. Antarctic dark septate root fungal endophytes: diversity and function. 5th International Conference on Mycorrhiza (ICOM 5), Granada, Spain (Invited workshop contribution). 23rd to 27th July 2006. (Oral) Upson, R., Newsham, K. K. and Read D.J. (2005) The status of dark septate root and rhizoid-inhabiting fungal endophytes in three Antarctic plant species. Comparative Biochemistry and Physiology Part IA 141: S219-S224 Upson, R., Newsham, K. K. and Read D.J. The status of dark septate root and rhizoid-inhabiting fungal endophytes in three Antarctic plant species. Annual meeting of the Society for Experimental Biology (SEB), Barcelona, Spain (Part of the Below Ground Processes session). July 2005. (Oral) Upson, R., Newsham, K. K. and Read D.J. The phylogenetic affinities of dark septate endophytes from two Antarctic plant species: evidence for global ubiquity. Biological Sciences Division Posterday. University of Sheffield. May 2005. (Poster) Upson, R., Newsham, K. K. and Read D.J. The status of dark septate fungi in Antarctic plant and soil communities. British Antarctic Surveys annual Antarctic Funding Initiative conference, Newnham College, Cambridge. September 2003. (Oral) BAS Archives Base and Field Reports series, travel report describing part of the field work undertaken between 4th January - 17th January 2003 for this project. Archives ref: AD6/2R/2002/K3. Project ref: AFI 02/30 - The status of dark septate fungi in Antarctic plant and soil communities |
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| Quality: | All of the data is of a good quality. | |
| Lineage: | ||
| Temporal Coverage: | |
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| Start Date | 2002-07-01 |
| End Date | 2005-06-30 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -67.6 |
| Northernmost | -54.28333 |
| Longitude | |
| Westernmost | -68.35 |
| Easternmost | -36.48333 |
| Altitude | |
| Min Altitude | 0m |
| Max Altitude | 60m |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | South Shetland Islands |
| Location | Antarctica |
| Detailed Location | Potter Cove |
| Location | Antarctica |
| Detailed Location | Point Thomas |
| Location | Antarctica |
| Detailed Location | Damoy Point |
| Location | Antarctica |
| Detailed Location | Nelson Island |
| Location | Antarctica |
| Detailed Location | King George Island |
| Location | Antarctica |
| Detailed Location | Harmony Points |
| Location | Antarctica |
| Detailed Location | Robert Island |
| Location | Antarctica |
| Detailed Location | Coppermine Peninsula |
| Location | Antarctica |
| Detailed Location | Livingston Island |
| Location | Antarctica |
| Detailed Location | Hurd Peninsula |
| Location | Antarctica |
| Detailed Location | Hannah Point |
| Location | Antarctica |
| Detailed Location | Adelaide Island |
| Location | Antarctica |
| Detailed Location | Rothera Point |
| Location | Antarctica |
| Detailed Location | Leonie Island |
| Location | Antarctica |
| Detailed Location | Anchorage Island |
| Location | Antarctica |
| Detailed Location | Lagoon Islands |
| Location | Antarctica |
| Detailed Location | South Orkney Islands |
| Location | Antarctica |
| Detailed Location | Signy |
| Location | Antarctica |
| Detailed Location | Factory Cove |
| Location | Antarctica |
| Detailed Location | Berntsen Point |
| Location | Antarctica |
| Detailed Location | Backslope |
| Location | Antarctica |
| Detailed Location | Lynch Island |
| Location | Antarctica |
| Detailed Location | Coronation Islands |
| Location | Antarctica |
| Detailed Location | Shingle Cove |
| Location | Antarctica |
| Detailed Location | Mansfield Points |
| Location | Antarctica |
| Detailed Location | Olivine Points |
| Location | South Georgia Island |
| Detailed Location | N/A |
| Location | Antarctica |
| Detailed Location | Grytviken |
| Location | Antarctica |
| Detailed Location | Byers Peninsula |
| Data Collection: | - ITS FASTA Sequences [Word documents] - Fungal and bacterial isolates description [Excel spreadsheet] |
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| Distribution: | |
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| Distribution Media | Online FTP |
| Distribution Size | N/A |
| Distribution Format | N/A |
| Fees | See Natural Environment Research Council (NERC) Data Policy |
| Data Storage: | The data is managed by the UK Polar Data Centre (UK PDC) Biological Data Manager and held on the BAS Storage Area Network (SAN). The data has been entered into GenBank and the UK PDC holds the strain list with corresponding GenBank references. All of the data is also contained within the thesis Upson, R. (2006) The status of dark septate root endophytic fungi in Antarctic plant communities. |