Version 1
: Received: 12 June 2020 / Approved: 14 June 2020 / Online: 14 June 2020 (12:37:30 CEST)
How to cite:
Atanasov, V.; Fürtauer, L.; Nägele, T. Indications for a Central Role of Hexokinase Activity in Natural Variation of Heat Acclimation in Arabidopsis thaliana. Preprints2020, 2020060169. https://doi.org/10.20944/preprints202006.0169.v1
Atanasov, V.; Fürtauer, L.; Nägele, T. Indications for a Central Role of Hexokinase Activity in Natural Variation of Heat Acclimation in Arabidopsis thaliana. Preprints 2020, 2020060169. https://doi.org/10.20944/preprints202006.0169.v1
Atanasov, V.; Fürtauer, L.; Nägele, T. Indications for a Central Role of Hexokinase Activity in Natural Variation of Heat Acclimation in Arabidopsis thaliana. Preprints2020, 2020060169. https://doi.org/10.20944/preprints202006.0169.v1
APA Style
Atanasov, V., Fürtauer, L., & Nägele, T. (2020). Indications for a Central Role of Hexokinase Activity in Natural Variation of Heat Acclimation in <em>Arabidopsis thaliana</em>. Preprints. https://doi.org/10.20944/preprints202006.0169.v1
Chicago/Turabian Style
Atanasov, V., Lisa Fürtauer and Thomas Nägele. 2020 "Indications for a Central Role of Hexokinase Activity in Natural Variation of Heat Acclimation in <em>Arabidopsis thaliana</em>" Preprints. https://doi.org/10.20944/preprints202006.0169.v1
Abstract
Diurnal and seasonal changes of abiotic environmental factors shape plant performance and distribution. Changes of growth temperature and light intensity may vary significantly on a diurnal, but also on a weekly or seasonal scale. Hence, acclimation to a changing temperature and light regime is essential for plant survival and propagation. In the present study, we analyzed photosynthetic CO2 assimilation and metabolic regulation of the central carbohydrate metabolism in two natural accessions of Arabidopsis thaliana originating from Russia and south Italy during exposure to heat and a combination of heat and high light. Our findings indicate that it is hardly possible to predict photosynthetic capacities to fix CO2 under combined stress from single stress experiments. Further, capacities of hexose phosphorylation were found to be significantly lower in the Italian than in the Russian accession which could explain an inverted sucrose-to-hexose ratio. Together with the finding of significantly stronger accumulation of anthocyanins under heat/high light these observations indicate a central role of hexokinase activity in stabilization of photosynthetic capacities within a changing environment.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
