scholarly journals Tetraploid Trollius europaeus L.

2015 ◽  
Vol 33 (1) ◽  
pp. 9-13
Author(s):  
A. Doroszewska
Keyword(s):  
2008 ◽  
Vol 23 (3) ◽  
pp. 598-610 ◽  
Author(s):  
Barbara Juśkiewicz-Swaczyna ◽  
Zbigniew Endler ◽  
Sylwia Szczesna
Keyword(s):  

Author(s):  
Shakhnoza S. Azimova ◽  
Anna I. Glushenkova
Keyword(s):  

2018 ◽  
Vol 13 (1) ◽  
pp. 312-318 ◽  
Author(s):  
Ewa Witkowska-Banaszczak ◽  
Dominika Radzikowska ◽  
Karolina Ratajczak

AbstractThe influence of stress factors on a plant may lead to worse functioning of the plant and the loss of its crop. The effect of Aulacorthum solani feeding on Trollius europaeus with regard to active compounds in the leaves was investigated in the study. The antioxidant activity of the leaves, the material on which the insects fed, was compared with that of the material that was not infested by the aphids. Stress level was evaluated on the basis of such physiological parameters as chlorophyll fluorescence and photosynthesis activity. An increase of 34.5% in the content of polyphenolic compounds, as compared to control, was demonstrated in the material exposed to the biotic stress caused by aphids. The content of phenolic acids was 28% higher while that of flavonoids rose by 25%. The increase in polyphenolic compounds augmented the antioxidant activity of the material.


2015 ◽  
Vol 37 (5) ◽  
Author(s):  
Ewa Witkowska-Banaszczak ◽  
Wiesława Bylka

2017 ◽  
Vol 86 (2) ◽  
Author(s):  
Wojciech Antkowiak ◽  
Janetta Niemann ◽  
Andrzej Wojciechowski

<span>The European globeflower was shown to be highly self‐incompatible by flower bagging experiments, however, a very small degree of selfing was observed in natural populations. The present study is an attempt to evaluate the level of self-incompatibility (SI) in three <em>Trollius europaeus</em> populations from different sites of Poland and to assess a degree of cross-compatibility (CC) between these populations. The SI and CC of the globeflower populations were evaluated based on the pollen germination index (PGI). The observations of pollen grains germination and pollen tubes penetration were made in pistils after self- and diallel cross-pollination of globeflower plants. The pollination combinations which had the PGI equal or higher than 2 were regarded as compatible. Generally, the PGI after self-pollination of all globeflower population was over 2, indicating that they are self-compatible. Also, in two globeflower populations after cross-pollination the PGI was higher than 2 showing that there was cross-compatibility between plants of these two populations. However, the third population, from Biedrusko, was fully cross-incompatible.</span>


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