A study of light-induced stomatal response in Arabidopsis using thermal imaging
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
33046242
DOI
10.1016/j.bbrc.2020.09.020
PII: S0006-291X(20)31758-7
Knihovny.cz E-resources
- Keywords
- Infrared thermal imaging, Light-induced temperature kinetics, Photosystem II efficiency, Stomatal conductance,
- MeSH
- Arabidopsis metabolism radiation effects MeSH
- Photosystem II Protein Complex genetics physiology radiation effects MeSH
- Plant Leaves metabolism physiology radiation effects MeSH
- Mutation MeSH
- Protein Kinases genetics metabolism MeSH
- Arabidopsis Proteins genetics metabolism MeSH
- Plant Stomata metabolism physiology radiation effects MeSH
- Temperature MeSH
- Thermography methods MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Photosystem II Protein Complex MeSH
- OST1 protein, Arabidopsis MeSH Browser
- Protein Kinases MeSH
- Arabidopsis Proteins MeSH
Thermal imaging was used to study the early stage response to light-induced heating of Arabidopsis thaliana leaves. Time-series thermograms provided a spatial and temporal characterization of temperature changes in Arabidopsis wild type and the ost1-2 mutant rosettes exposed to excessive illumination. The initial response to high light, defined by the exponential increase in leaf temperature of ost1-2 gave an increased thermal time constant compared to wild type plants. The inability to regulate stomata in ost1-2 resulted in enhanced stomatal conductance and transpiration rate. Under strong irradiation, a significant decline in the efficiency of photosystem II was observed. This study evaluates infrared thermography kinetics and determines thermal time constants in particular, as an early and rapid method for diagnosing the prime indicators of light stress in plants under excessive light conditions.
Malopolska Centre of Biotechnology Jagiellonian University Gronostajowa 7a 30 387 Kraków Poland
Photon Systems Instruments Drásov 470 664 24 Drásov Czech Republic
References provided by Crossref.org
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