Sphagnum physiology in the context of changing climate [electronic resource] : emergent influences of genomics, modelling and host–microbiome interactions on understanding ecosystem function
- Washington, D.C. : United States. Dept. of Energy. Office of Science, 2014.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- pages 1,737-1,751 : digital, PDF file
- Additional Creators:
- Oak Ridge National Laboratory
United States. Department of Energy. Office of Science
United States. Department of Energy. Office of Scientific and Technical Information
- Peatlands harbour more than one-third of terrestrial carbon leading to the argument that the bryophytes, as major components of peatland ecosystems, store more organic carbon in soils than any other collective plant taxa. Plants of the genus Sphagnum are important components of peatland ecosystems and are potentially vulnerable to changing climatic conditions. However, the response of Sphagnum to rising temperatures, elevated CO<sub>2</sub> and shifts in local hydrology have yet to be fully characterized. In this paper, we examine Sphagnum biology and ecology and explore the role of this group of keystone species and its associated microbiome in carbon and nitrogen cycling using literature review and model simulations. Several issues are highlighted including the consequences of a variable environment on plant–microbiome interactions, uncertainty associated with CO<sub>2</sub> diffusion resistances and the relationship between fixed N and that partitioned to the photosynthetic apparatus. We note that the Sphagnum fallax genome is currently being sequenced and outline potential applications of population-level genomics and corresponding plant photosynthesis and microbial metabolic modelling techniques. Finally, we highlight Sphagnum as a model organism to explore ecosystem response to a changing climate and to define the role that Sphagnum can play at the intersection of physiology, genetics and functional genomics.
- Published through SciTech Connect.
Plant, Cell and Environment 38 9 ISSN 0140-7791 AM
David J. Weston; Collin M. Timm; Anthony P. Walker; Lianhong Gu; Wellington Muchero; Jeremy Schmutz; A. Jonathan Shaw; Gerald A. Tuskan; Jeffrey M. Warren; Stan D. Wullschleger.
- Funding Information:
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