Acclimation of leaf respiration temperature responses across thermally contrasting biomes
Open accessAbstract
Summary: Short‐term temperature response curves of leaf dark respiration (R–T) provide insights into a critical process that influences plant net carbon exchange. This includes how respiratory traits acclimate to sustained changes in the environment. Our study analysed 860 high‐resolution R–T (10–70°C range) curves for: (a) 62 evergreen species measured in two contrasting seasons across several field sites/biomes; and (b) 21 species (subset of those sampled in the field) grown in glasshouses at 20°C : 15°C, 25°C : 20°C and 30°C : 25°C, day : night. In the field, across all sites/seasons, variations in R25 (measured at 25°C) and the leaf T where R reached its maximum (Tmax) were explained by growth T (mean air‐T of 30‐d before measurement), solar irradiance and vapour pressure deficit, with growth T having the strongest influence. R25 decreased and Tmax increased with rising growth T across all sites and seasons with the single exception of winter at the cool‐temperate rainforest site where irradiance was low. The glasshouse study confirmed that R25 and Tmax thermally acclimated. Collectively, the results suggest: (1) thermal acclimation of leaf R is common in most biomes; and (2) the high T threshold of respiration dynamically adjusts upward when plants are challenged with warmer and hotter climates.
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Fluctuations in ambient temperature and RH are detrimental during acclimatization due to their negative effects on plant growth and development.
“However, due to their negative effects on plant growth and development, fluctuations in ambient temperature and RH are detrimental during acclimatization [85,86].”
From Design and Evaluation of a Smart Ex Vitro Acclimatization System for Tissue Culture Plantlets (2022) · cites this paper as [86]
The Introduction and the section on thermal acclimation of R25 describe how leaf respiration adjusts to changes in growth temperature. An Accepted Article passage also relates vapour pressure deficit to leaf respiration, but none of these passages says that fluctuations in temperature and relative humidity harm plant growth or development during acclimatization. Searches for humidity fluctuations and negative effects on growth found no passage addressing that claim. (LLM, conf=0.76)
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Research works printed but not linked: 12
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Design and Evaluation of a Smart Ex Vitro Acclimatization System for Tissue Culture Plantlets
Mohammed, M., Munir, M., & Ghazzawy, H. S. (2022) · Agronomy · doi:10.3390/agronomy13010078 · Cited by 35 · see citing works
- Authors
- Zhu, L., Bloomfield, K. J., Asao, S., Tjoelker, M. G., Egerton, J. J. G., Hayes, L., Weerasinghe, L. K., Creek, D., Griffin, K. L., Hurry, V., Liddell, M., Meir, P., Turnbull, M. H., & Atkin, O. K.
- Affiliations
- Australian National University (AU)
- Western Sydney University (AU)
- University of Peradeniya (LK)
- Columbia University (US)
- Swedish University of Agricultural Sciences (SE)
- James Cook University (AU)
- University of Canterbury (NZ)
- Corresponding author
- Atkin, Owen K.
- ORCID
- Venue
- New Phytologist
- Publisher
- Wiley
- Published
- 2020-10-14
- Volume
- 229
- Issue
- 3
- Pages
- 1312-1325
- ISSN
- 0028-646X (ISSN-L)
- 1469-8137
- OpenAlex
- W3086898014
- Cited by
- 35
- References
- 0
- Citations by year
- 2026: 3 · 2025: 10 · 2024: 5 · 2023: 4 · 2022: 3 · 2021: 9 · 2020: 1
- FWCI
- 1.58
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- New Phytologist (publishedVersion)
- PubMed (publishedVersion)
- ResearchOnline at James Cook University (James Cook University) (submittedVersion)
- ANU Open Research (Australian National University) (submittedVersion)
- HAL (submittedVersion)
- Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, other-oa)
- Funders
- Australian Research Council (DP0986823, DP130101252, CE140100008)
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Plant Water Relations and Carbon Dynamics
- Physical Sciences › Environmental Science › Ecology › Physiological and biochemical adaptations
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
- Keywords
- leaf dark respiration, temperature response curves, thermal acclimation, evergreen trees, growth temperature, solar irradiance, vapor pressure deficit, biomes, seasonal variation, global warming, net carbon exchange
- MeSH terms
- Acclimatization, Respiration, Temperature, Ecosystem, Plant Leaves
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