Počet záznamů: 1  

Physiological and fitness differences between cytotypes vary with stress in a grassland perennial herb

  1. 1.
    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

    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

     
     
Počet záznamů: 1  

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