Thermal acclimation of respiration but not photosynthesis in Pinus radiata

Functional Plant Biology : FPB
Lai Fern OwMatthew H Turnbull

Abstract

Pinus radiata L. were grown in climate-controlled cabinets under three night/day temperature treatments, and transferred between treatments to mimic changes in growth temperature. The objective was to determine the extent to which dark respiration and photosynthesis in pre-existing and new needles acclimate to changes in growth temperatures. We also assessed whether needle nitrogen influenced the potential for photosynthetic and respiratory acclimation, and further assessed if short-term (instantaneous, measured over a few hours) respiratory responses are accurate predictors of long-term (acclimated, achieved in days-weeks) responses of respiration to changing temperature. Results show that respiration displayed considerable potential for acclimation. Cold and warm transfers resulted in some acclimation of respiration in pre-existing needles, but full acclimation was displayed only in new needles formed at the new growth temperature. Short-term respiratory responses were poor predictors of the long-term response of respiration due to acclimation. There was no evidence that photosynthesis in pre-existing or new needles acclimated to changes in growth temperature. N status of leaves had little impact on the extent of acclimation....Continue Reading

References

Oct 12, 2001·Nature·L Rustad
Mar 26, 2003·Tree Physiology·Robert O. Teskey, Rodney E. Will
Jul 25, 2003·Trends in Plant Science·Owen K Atkin, Mark G Tjoelker
Dec 24, 2005·Journal of Experimental Botany·O K AtkinT L Pons
Jan 27, 2006·Nature·Peter B ReichJacek Oleksyn
Apr 29, 2006·Science·Anthony W KingStan D Wullschleger
Jan 29, 2008·The New Phytologist·Lai Fern OwMatthew H Turnbull
Apr 1, 2005·Functional Plant Biology : FPB·Owen K AtkinMark G Tjoelker
Mar 1, 2004·The New Phytologist·Matthew H TurnbullKevin L Griffin

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Citations

Jan 5, 2011·Physiologia Plantarum·Stephanie Y Searle, Matthew H Turnbull
Jan 27, 2012·Tree Physiology·Yan-Shih LinDavid S Ellsworth
Sep 10, 2011·Molecular Ecology·Monia S H HaselhorstCynthia Weinig
Aug 14, 2020·Tree Physiology·Maegan A GagneKatherine A McCulloh

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