Acclimation of photosynthesis and respiration is asynchronous in response to changes in temperature regardless of plant functional group

doi:10.1111/j.1469-8137.2007.02183.x

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Wiley InterScience

New Phytologist

Volume 176 Issue 2, Pages 375 - 389

Published Online: 10 Aug 2007

Published on behalf of the New Phytologist Trust

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Acclimation of photosynthesis and respiration is asynchronous in response to changes in temperature regardless of plant functional group

Catherine Campbell ^1,2 , Lindsey Atkinson ² , Joana Zaragoza-Castells ² , Maria Lundmark ¹ , Owen Atkin ² and Vaughan Hurry ¹

¹ Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, S-901 87 Umeå, Sweden; ² Department of Biology (Area 2), The University of York, PO Box 373, York YO10 5YW, UK

Author for correspondence: Vaughan Hurry
Tel:+46 90 786 6845
Fax: +46 90 786 6676
Email: Vaughan.Hurry@plantphys.umu.se

This was an equal collaboration between research groups based at the University of York and Umeå University.

KEYWORDS

acclimation • functional group • global antibodies • photosynthesis • protein abundance • respiration • temperature

New Phytologist (2007) 176: 375–389

ABSTRACT

•
Gas exchange, fluorescence, western blot and chemical composition analyses were combined to assess if three functional groups (forbs, grasses and evergreen trees/shrubs) differed in acclimation of leaf respiration (R) and photosynthesis (A) to a range of growth temperatures (7, 14, 21 and 28°C).
•
When measured at a common temperature, acclimation was greater for R than for A and differed between leaves experiencing a 10-d change in growth temperature (PE) and leaves newly developed at each temperature (ND). As a result, the R : A ratio was temperature dependent, increasing in cold-acclimated plants. The balance was largely restored in ND leaves. Acclimation responses were similar among functional groups.
•
Across the functional groups, cold acclimation was associated with increases in nonstructural carbohydrates and nitrogen. Cold acclimation of R was associated with an increase in abundance of alternative and/or cytochrome oxidases in a species-dependent manner. Cold acclimation of A was consistent with an initial decrease and subsequent recovery of thylakoid membrane proteins and increased abundance of proteins involved in the Calvin cycle.
•
Overall, the results point to striking similarities in the extent and the biochemical underpinning of acclimation of R and A among contrasting functional groups differing in overall rates of metabolism, chemical composition and leaf structure.