Report on photosynthetic efficiency of Arabidopsis thaliana cell cultures, a simplified system of intact plants

0518563 - ÚVGZ 2020 CZ eng A - Abstrakt
Zavřel, Tomáš - Segečová, Anna - Červený, Jan
Report on photosynthetic efficiency of Arabidopsis thaliana cell cultures, a simplified system of intact plants.
Plant Biology CS 2019 - Programme and Book of Abstracts. České Budějovice: Karmášek s.r.o., 2019 - (Krekule, J.). ISSN 1213-6670.
[Plant Biology CS 2019. 25.08.2019-30.08.2019, České Budějovice]
Grant CEP: GA MŠMT(CZ) LO1415; GA ČR(CZ) GA15-17367S
Institucionální podpora: RVO:86652079
Klíčová slova: cell cultures
Obor OECD: Plant sciences, botany

Photoautotrophic cell cultures are cultivated green cells from higher plants. The complexity of a whole plant is reduced to a population of single cells or cell clusters; in this sense cell cultures resemble unicellular algal cultures. Cell cultures are used to study plant photosynthesis, metabolic regulation and signaling or response to toxic compounds. Here, we investigate photosynthesis efficiency of Arabidopsis thaliana photoautotrophic cell cultures in comparison with A. thaliana intact plants and alga Chlorella pyrenoidosa. Cell cultures show reduced photosynthetic yield (Y(II)) compared to both intact plants and algae, which is connected with reduced fraction of open photosystem II (qP) and with increased non-photochemical quenching (NPQ). Additionally cell cultures show different dynamics of photosynthesis induction compared to both algae and intact plants. These results have implications for further studies using A. thaliana cell cultures as model organisms
Trvalý link: http://hdl.handle.net/11104/0303672