Nocturnal plant respiration is under strong non-temperature control

Bruhn, Dan; Newman, Freya; Hancock, Mathilda; Povlsen, Peter; Slot, Martijn; Sitch, Stephen; Drake, John; Weedon, Graham P.; Clark, Douglas B. ORCID: https://orcid.org/0000-0003-1348-7922; Pagter, Majken; Ellis, Richard J.; Tjoelker, Mark G.; Andersen, Kelly M.; Correa, Zorayda Restrepo; McGuire, Patrick C.; Mercado, Lina M. ORCID: https://orcid.org/0000-0003-4069-0838. 2022 Nocturnal plant respiration is under strong non-temperature control. Nature Communications, 13, 5650. 10, pp. https://doi.org/10.1038/s41467-022-33370-1

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Official URL: http://dx.doi.org/10.1038/s41467-022-33370-1

Abstract/Summary

Most biological rates depend on the rate of respiration. Temperature variation is typically considered the main driver of daily plant respiration rates, assuming a constant daily respiration rate at a set temperature. Here, we show empirical data from 31 species from temperate and tropical biomes to demonstrate that the rate of plant respiration at a constant temperature decreases monotonically with time through the night, on average by 25% after 8 h of darkness. Temperature controls less than half of the total nocturnal variation in respiration. A new universal formulation is developed to model and understand nocturnal plant respiration, combining the nocturnal decrease in the rate of plant respiration at constant temperature with the decrease in plant respiration according to the temperature sensitivity. Application of the new formulation shows a global reduction of 4.5 −6 % in plant respiration and an increase of 7-10% in net primary production for the present-day.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1038/s41467-022-33370-1
UKCEH and CEH Sections/Science Areas:	Hydro-climate Risks (Science Area 2017-)
ISSN:	2041-1723
Additional Information. Not used in RCUK Gateway to Research.:	Open Access paper - full text available via Official URL link.
Additional Keywords:	carbon cycle, ecophysiology, plant physiology
NORA Subject Terms:	Ecology and Environment
Date made live:	24 Oct 2022 17:11 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/533418

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1038/s41467-022-33370-1

UKCEH and CEH Sections/Science Areas:

Hydro-climate Risks (Science Area 2017-)

ISSN:

2041-1723

Additional Information. Not used in RCUK Gateway to Research.:

Open Access paper - full text available via Official URL link.

Additional Keywords:

carbon cycle, ecophysiology, plant physiology