Skip Navigation


AOBPreview originally published online on March 6, 2003
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Content Snapshot
Right arrow Content Select
Right arrow All Versions of this Article:
91/6/613    most recent
mcg067v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (9)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by PIERCE, S.
Right arrow Articles by BAXTER, R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by PIERCE, S.
Right arrow Articles by BAXTER, R.
Agricola
Right arrow Articles by PIERCE, S.
Right arrow Articles by BAXTER, R.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Annals of Botany 91: 613-622, 2003
© 2003 Annals of Botany Company

Pseudoviviparous Reproduction of Poa alpina var. vivipara L. (Poaceae) during Long-term Exposure to Elevated Atmospheric CO2

SIMON PIERCE1, CLARE M. STIRLING2 and ROBERT BAXTER3

1 Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK, 2 Institute of Terrestrial Ecology, Bangor Research Station, Orton Building, Deiniol Road, Bangor, Gwynedd LL57 2UP, UK and 3 Department of Biological Sciences, University of Durham, South Road, Durham DH1 3JP, UK

{dagger} Present address: School of Agriculture and Forest Sciences, University of Wales, Bangor LL57 2UW, UK.

Received: 2 October 2002; Returned for revision: 3 December 2002 ; Accepted: 21 January 2003    Published electronically: 6 March 2003

Pseudovivipary is an asexual reproductive strategy exhibited by some arctic/alpine grasses in which leafy plantlets are produced in place of seeds, with genetic conservation an advantage for stress tolerators in these nutrient-poor habitats. Photosynthetic metabolism and the development of this reproductive system were investigated under varying nutrient availability and predicted future CO2 partial pressure (pCO2). Poa alpina var. vivipara L., grown at present ambient pCO2 or ambient plus 340 µmol mol–1 CO2 (elevated pCO2), was supplied with either 0·05 mol m–3 phosphorus and 0·2 mol m–3 nitrogen, or 0·2 mol m–3 phosphorus and 1·0 mol m–3 nitrogen. Gas exchange measurements and determination of total non-structural carbohydrate (TNC), nitrogen and phosphorus contents revealed that parent plant leaf blade tissues experienced acclimatory loss of photosynthetic capacity after long-term growth at elevated pCO2 (particularly so when nutrient availability was low); there were associated reductions in photosynthetic nitrogen and phosphorus use efficiencies (PNUE and PPUE). In addition, decreased PNUE and PPUE were exhibited by plantlets grown at elevated pCO2 with low nutrient availability. Decreased reproductive dry matter in this treatment also resulted from a lack of reproductive initiation in daughter tillers, and altered phenology. Pseudoviviparous P. alpina is likely to be at a disadvantage in both vegetative and reproductive phases at predicted future elevated atmospheric CO2 concentrations, particularly where nutrients are scarce and when in competition with species experiencing less acclimatory loss of photosynthetic capacity.

Key words: Alpine meadow grass, elevated pCO2, nutrient availability, photosynthetic acclimation, photosynthetic nutrient use efficiency, Poa alpina var. vivipara, pseudovivipary, prolification.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J Plant EcolHome page
Y. Hautier, C. F. Randin, J. Stocklin, and A. Guisan
Changes in reproductive investment with altitude in an alpine plant
J Plant Ecol, September 1, 2009; 2(3): 125 - 134.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
F. F. Coelho, C. Capelo, L. C. Ribeiro, and J. E. C. Figueira
Reproductive Modes in Leiothrix (Eriocaulaceae) in South-eastern Brazil: The Role of Microenvironmental Heterogeneity
Ann. Bot., February 1, 2008; 101(3): 353 - 360.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
K. Rudmann-Maurer, A. Weyand, M. Fischer, and J. Stocklin
Microsatellite Diversity of the Agriculturally Important Alpine Grass Poa alpina in Relation to Land Use and Natural Environment
Ann. Bot., November 1, 2007; 100(6): 1249 - 1258.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
F. F. COELHO, C. CAPELO, A. C. O. NEVES, R. P. MARTINS, and J. E. C. FIGUEIRA
Seasonal Timing of Pseudoviviparous Reproduction of Leiothrix (Eriocaulaceae) Rupestrian Species in South-eastern Brazil
Ann. Bot., December 1, 2006; 98(6): 1189 - 1195.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
N. Palleiro, M. C. Mandujano, and J. Golubov
Aborted fruits of Opuntia microdasys (Cactaceae): insurance against reproductive failure
Am. J. Botany, April 1, 2006; 93(4): 505 - 511.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.