Transcriptional response of the extremophile red alga Cyanidioschyzon merolae to changes in CO2 concentrations

Rademacher N, Wrobel TJ, Rossoni AW, Kurz S, Bräutigam A, Weber APM, Eisenhut M (2017)
Journal of Plant Physiology 217: 49-56.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Rademacher, Nadine; Wrobel, Thomas J.; Rossoni, Alessandro W.; Kurz, Samantha; Bräutigam, AndreaUniBi ; Weber, Andreas P. M.; Eisenhut, Marion
Abstract / Bemerkung
Cyanidioschyzon merolae (C. merolae) is an acidophilic red alga growing in a naturally low carbon dioxide (CO2) environment. Although it uses a ribulose 1,5-bisphosphate carboxylase/oxygenase with high affinity for CO2, the survival of C. merolae relies on functional photorespiratory metabolism. In this study, we quantified the transcriptomic response of C. merolae to changes in CO2 conditions. We found distinct changes upon shifts between CO2 conditions, such as a concerted up-regulation of photorespiratory genes and responses to carbon starvation. We used the transcriptome data set to explore a hypothetical CO2 concentrating mechanism in C. merolae, based on the assumption that photorespiratory genes and possible candidate genes involved in a CO2 concentrating mechanism are co-expressed. A putative bicarbonate transport protein and two a-carbonic anhydrases were identified, which showed enhanced transcript levels under reduced CO2 conditions. Genes encoding enzymes of a PEPCK-type C-4 pathway were co-regulated with the photorespiratory gene cluster. We propose a model of a hypothetical low CO2 compensation mechanism in C. merolae integrating these low CO2-inducible components.
Stichworte
Cyanidioschyzon merolae; RNA-seq; CO2 limitation; Photorespiration
Erscheinungsjahr
2017
Zeitschriftentitel
Journal of Plant Physiology
Band
217
Seite(n)
49-56
ISSN
0176-1617
eISSN
1618-1328
Page URI
https://pub.uni-bielefeld.de/record/2915118

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Rademacher N, Wrobel TJ, Rossoni AW, et al. Transcriptional response of the extremophile red alga Cyanidioschyzon merolae to changes in CO2 concentrations. Journal of Plant Physiology. 2017;217:49-56.
Rademacher, N., Wrobel, T. J., Rossoni, A. W., Kurz, S., Bräutigam, A., Weber, A. P. M., & Eisenhut, M. (2017). Transcriptional response of the extremophile red alga Cyanidioschyzon merolae to changes in CO2 concentrations. Journal of Plant Physiology, 217, 49-56. doi:10.1016/j.jplph.2017.06.014
Rademacher, N., Wrobel, T. J., Rossoni, A. W., Kurz, S., Bräutigam, A., Weber, A. P. M., and Eisenhut, M. (2017). Transcriptional response of the extremophile red alga Cyanidioschyzon merolae to changes in CO2 concentrations. Journal of Plant Physiology 217, 49-56.
Rademacher, N., et al., 2017. Transcriptional response of the extremophile red alga Cyanidioschyzon merolae to changes in CO2 concentrations. Journal of Plant Physiology, 217, p 49-56.
N. Rademacher, et al., “Transcriptional response of the extremophile red alga Cyanidioschyzon merolae to changes in CO2 concentrations”, Journal of Plant Physiology, vol. 217, 2017, pp. 49-56.
Rademacher, N., Wrobel, T.J., Rossoni, A.W., Kurz, S., Bräutigam, A., Weber, A.P.M., Eisenhut, M.: Transcriptional response of the extremophile red alga Cyanidioschyzon merolae to changes in CO2 concentrations. Journal of Plant Physiology. 217, 49-56 (2017).
Rademacher, Nadine, Wrobel, Thomas J., Rossoni, Alessandro W., Kurz, Samantha, Bräutigam, Andrea, Weber, Andreas P. M., and Eisenhut, Marion. “Transcriptional response of the extremophile red alga Cyanidioschyzon merolae to changes in CO2 concentrations”. Journal of Plant Physiology 217 (2017): 49-56.
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2019-09-06T09:18:53Z
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