Data

Embolism repair in two species of cushion plants on Macquarie Island

Australian Antarctic Division

Ball, M., Egerton, J., Rolland, V., Bergstrom, D., Lenne, T., Bryant, G., Chen, H., Wolfe, J., Holbrook, N. and Stanton, D. ; BALL, MARILYN ; EGERTON, JACK ; ROLLAND, VIVIAN ; BERGSTROM, DANA M. ; LENNE, THOMAS ; BRYANT, GARY ; CHEN, HUA ; WOLFE, JOE ; HOLBROOK, NOEL ; STANTON, DANIEL

Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]

ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.4225/15/5a0d2246aa34b&rft.title=Embolism repair in two species of cushion plants on Macquarie Island&rft.identifier=10.4225/15/5a0d2246aa34b&rft.publisher=Australian Antarctic Data Centre&rft.description=This data set deals with embolism repair in two species of cushion plants (Colobanthus muscoides and Azorella macquariensis) which grow on Macquarie island and rely on protoxylem for water transport. Detailed description of each file can also be found in the readme.doc file.Index:Movies 1 and 2: Movies of in vitro embolism resorption in Colobanthus muscoides. 1 frame per 0.5s. Both movies have the same scale bar, shown on Movie 2.Images 1-13: Bright field time series of in vivo protoxylem embolism resorption in Colobanthus muscoides. Scale identical for all images and visible on Image_6.Images 14-17: Confocal images of protoxylem of Azorella macquariensis (Image_14 and Image_15) and Colobanthus muscoides (Image_16 and Image_17). Scale identical for all images and visible on Image_16 and Image_17.Images 18-23, 26: Cryo-SEM images of protoxylem of Azorella macquariensis (Image_18, Image_19 and Image_26) and Colobanthus muscoides (Image_20 to Image_23).Images 24-25: Bright field images of in vitro protoxylem embolisms in Colobanthus muscoides.Measurements.xls: Measurements on individual bubbles obtain from in vitro embolism resorption in Colobanthus muscoides.See the download file for a detailed description of the methods used in this project.Anatomical images and physiological attributes of Colobanthus muscoides and Azorella macquariensisHydraulic structures of plants play important roles in tolerance of temperature extremes and drought, two factors likely to increase with climate change. Studies are underway to determine how hydraulic traits of selected sub-Antarctic plant species may enhance or constrain acclimation to changing climatic conditions, thereby contributing to climate-driven change in vegetation composition. Detailed analyses of the cushion plant, Azorella macquariensis, revealed physiological attributes consistent with adaptation to a cold, wet, cloudy environment that make it vulnerable to conditions induced by climate change. Our studies indicate that inability to respond effectively to recent complex climate change is the most likely primary cause of dieback, assisted with potentially secondary impact from pathogens.Progress Code: completedStatement: See the methods document in the download file for further information. Samples were collected at the following locations: Doctors Track, Macquarie Island and near BoM station, Macquarie Island&rft.creator=Ball, M., Egerton, J., Rolland, V., Bergstrom, D., Lenne, T., Bryant, G., Chen, H., Wolfe, J., Holbrook, N. and Stanton, D. &rft.creator=BALL, MARILYN &rft.creator=EGERTON, JACK &rft.creator=ROLLAND, VIVIAN &rft.creator=BERGSTROM, DANA M. &rft.creator=LENNE, THOMAS &rft.creator=BRYANT, GARY &rft.creator=CHEN, HUA &rft.creator=WOLFE, JOE &rft.creator=HOLBROOK, NOEL &rft.creator=STANTON, DANIEL &rft.date=2014&rft.coverage=westlimit=158.855; southlimit=-54.63; eastlimit=158.865; northlimit=-54.6&rft.coverage=westlimit=158.855; southlimit=-54.63; eastlimit=158.865; northlimit=-54.6&rft_rights=These data are publicly available for download from the provided URL. A copy of the referenced publication is available to AAD staff only.&rft_rights=Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/legalcode&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4192_images when using these data.&rft_rights=This metadata record is publicly available.&rft_subject=biota&rft_subject=EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > ANGIOSPERMS (FLOWERING PLANTS)&rft_subject=EARTH SCIENCE > BIOSPHERE > VEGETATION > PLANT CHARACTERISTICS > VEGETATION WATER CONTENT&rft_subject=EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY&rft_subject=Cushion Plants&rft_subject=Embolism&rft_subject=Protoxylem&rft_subject=AZORELLA MACQUARIENSIS&rft_subject=4192&rft_subject=AAS 4192&rft_subject=MICROSCOPES&rft_subject=LABORATORY&rft_subject=AMD/AU&rft_subject=AMD&rft_subject=CEOS&rft_subject=OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=GEOGRAPHIC REGION > POLAR&rft.type=dataset&rft.language=English Access the data

Access data via landing page
http://data.aad.gov.au...

Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Open Licence view details

Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/legalcode

These data are publicly available for download from the provided URL. A copy of the referenced publication is available to AAD staff only.

This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4192_images when using these data.

This metadata record is publicly available.

Access:

Other

Full description

This data set deals with embolism repair in two species of cushion plants (Colobanthus muscoides and Azorella macquariensis) which grow on Macquarie island and rely on protoxylem for water transport. Detailed description of each file can also be found in the readme.doc file.

Index:
Movies 1 and 2: Movies of in vitro embolism resorption in Colobanthus muscoides. 1 frame per 0.5s. Both movies have the same scale bar, shown on Movie 2.
Images 1-13: Bright field time series of in vivo protoxylem embolism resorption in Colobanthus muscoides. Scale identical for all images and visible on Image_6.
Images 14-17: Confocal images of protoxylem of Azorella macquariensis (Image_14 and Image_15) and Colobanthus muscoides (Image_16 and Image_17). Scale identical for all images and visible on Image_16 and Image_17.
Images 18-23, 26: Cryo-SEM images of protoxylem of Azorella macquariensis (Image_18, Image_19 and Image_26) and Colobanthus muscoides (Image_20 to Image_23).
Images 24-25: Bright field images of in vitro protoxylem embolisms in Colobanthus muscoides.
Measurements.xls: Measurements on individual bubbles obtain from in vitro embolism resorption in Colobanthus muscoides.

See the download file for a detailed description of the methods used in this project.

Anatomical images and physiological attributes of Colobanthus muscoides and Azorella macquariensis
Hydraulic structures of plants play important roles in tolerance of temperature extremes and drought, two factors likely to increase with climate change. Studies are underway to determine how hydraulic traits of selected sub-Antarctic plant species may enhance or constrain acclimation to changing climatic conditions, thereby contributing to climate-driven change in vegetation composition. Detailed analyses of the cushion plant, Azorella macquariensis, revealed physiological attributes consistent with adaptation to a cold, wet, cloudy environment that make it vulnerable to conditions induced by climate change. Our studies indicate that inability to respond effectively to recent complex climate change is the most likely primary cause of dieback, assisted with potentially secondary impact from pathogens.

Lineage

Progress Code: completed

Statement: See the methods document in the download file for further information. Samples were collected at the following locations: Doctors Track, Macquarie Island and near BoM station, Macquarie Island

Data time period: 2013-03-03 to 2013-03-11