Vliv kyseliny salicylové na vývoj průduchů, množství anthokyanů a asimilaci CO\dindex{2} u rostliny \kur{Arabidopsis thaliana}

Pavla Beáta TRHLÍNOVÁ

Bachelor's thesis

Abstract:

Salicylic acid (SA) is a plant phytohormone with the main role in the plant immunity response against pathogens. A higher concentration of SA induces stomata closure in plants and negatively impacts plant growth (plants with higher SA are smaller than the wild type). Under biotic stress, stomata are closed, which affect the diurnal carbon balance in plants. We are investigating the connection between the role of higher SA and small growth with the role of SA on the stomata closure and development, analysing their closure and density in Arabidopsis thaliana mutants with altered SA concentration. Additionally, the CO2 assimilation and photosynthesis rate are studied. Furthermore, SA also helps plants to deal with abiotic stress. It is known that more anthocyanins are produced under drought or light stress. In this study, we uncover on the possible inhibitory effect of SA on the production of anthocyanins under stress conditions. Our results indicate that SA is much more than a simply biotic stress-related phytohormone.

Jazyk práce: Czech

Datum vytvoření / odevzdání či podání práce: 13. 4. 2022

Obhajoba závěrečné práce

• Vedúci: Ing. Martin Janda, Ph.D.

UNIVERSITY OF SOUTH BOHEMIA IN ČESKÉ BUDĚJOVICE

Faculty of Science

Bachelor programme / odbor:
Biology / Biology