It's only natural: Plant respiration in unmanaged systems

Author:

Schmiege Stephanie C12ORCID,Heskel Mary3ORCID,Fan Yuzhen4ORCID,Way Danielle A2456ORCID

Affiliation:

1. Plant Resilience Institute, Michigan State University , East Lansing, MI, 48824 , USA

2. Department of Biology, Western University , N6A 3K7, London, ON , Canada

3. Department of Biology, Macalester College , Saint Paul, MN, USA 55105

4. Research School of Biology, The Australian National University , Acton, ACT , Australia

5. Environmental & Climate Sciences Department, Brookhaven National Laboratory , Upton, NY , USA

6. Nicholas School of the Environment, Duke University , Durham, NC , USA

Abstract

AbstractRespiration plays a key role in the terrestrial carbon cycle and is a fundamental metabolic process in all plant tissues and cells. We review respiration from the perspective of plants that grow in their natural habitat and how it is influenced by wide-ranging elements at different scales, from metabolic substrate availability to shifts in climate. Decades of field-based measurements have honed our understanding of the biological and environmental controls on leaf, root, stem, and whole-organism respiration. Despite this effort, there remain gaps in our knowledge within and across species and ecosystems, especially in more challenging-to-measure tissues like roots. Recent databases of respiration rates and associated leaf traits from species representing diverse biomes, plant functional types, and regional climates have allowed for a wider-lens view at modeling this important CO2 flux. We also re-analyze published data sets to show that maximum leaf respiration rates (R  max) in species from around the globe are related both to leaf economic traits and environmental variables (precipitation and air temperature), but that root respiration does not follow the same latitudinal trends previously published for leaf data. We encourage the ecophysiological community to continue to expand their study of plant respiration in tissues that are difficult to measure and at the whole plant and ecosystem levels to address outstanding questions in the field.

Funder

Natural Sciences and Engineering Research Council of Canada

Department of Energy

Brookhaven National Laboratory

Michigan State University

Publisher

Oxford University Press (OUP)

Subject

Plant Science,Genetics,Physiology

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