0486978 - BÚ 2018 RIV US eng J - Článek v odborném periodiku
Pavlíková, Z. - Holá, D. - Vlasáková, Blanka - Procházka, T. - Münzbergová, Zuzana
Physiological and fitness differences between cytotypes vary with stress in a grassland perennial herb.
PLoS ONE. Roč. 12, č. 11 (2017), s. 1-22, č. článku e0188795. ISSN 1932-6203. E-ISSN 1932-6203
Institucionální podpora: RVO:67985939
Klíčová slova: Knautia arvensis * polyploid * stress conditions
Obor OECD: Plant sciences, botany
Impakt faktor: 2.766, rok: 2017 ; AIS: 1, rok: 2017
DOI: https://doi.org/10.1371/journal.pone.0188795

The aim of this study was to assess response of diploid and autotetraploid individuals of Knautia arvensis (Dipsacaceae) to two stress conditions, shade or drought. The results indicate strong differences in performance and physiology between cytotypes in ambient conditions. Interestingly, higher fitness in diploids contrasted with more efficient photosynthesis in tetraploids in ambient conditions. However, stress, especially drought, strongly reduced fitness and disrupted function of the photosystems in both cytotypes reducing the between cytotype differences. The results indicate that drought stress reduced function of the photosynthetic processes in both cytotypes but particularly in tetraploids, while fitness reduction was stronger in diploids.
Trvalý link: http://hdl.handle.net/11104/0281745