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Scientia horticulturae v.234, 2018년, pp.10 - 18   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Growth, development and steviol glycosides content in the relation to the photosynthetic activity of several Stevia rebaudiana Bertoni strains cultivated under temperate climate conditions

Libik-Konieczny, Marta (Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, ul. Niezapominajek 21, 30-239 Krakow, Poland ) ; Capecka, Ewa (Department of Vegetable and Medicinal Plants, University of Agriculture in Krakow, al. 29 Listopada 54, 31-425 Kraków, Poland ) ; Kąkol, Edyta (Department of Vegetable and Medicinal Plants, University of Agriculture in Krakow, al. 29 Listopada 54, 31-425 Kraków, Poland ) ; Dziurka, Michał (Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, ul. Niezapominajek 21, 30-239 Krakow, Poland ) ; Grabowska-Joachimiak, Aleksandra (Department of Plant Breeding and Seed Science, University of Agriculture in Krakow, Lobzowska 24, PL-31140 Krakow, Poland ) ; Sliwinska, Elwira (Laboratory of Molecular Biology and Cytometry, Department of Agricultural Biotechnology, UTP University of Science and Technology, Kaliskiego Ave. 7, 85-789 Bydgoszcz, Poland ) ; Pistelli, Laura (University of Pisa, Department of Agriculture, Food and Environment, Via del Borghetto 80, I-56124 Pisa, Italy ) ;
  • 초록  

    Abstract The objective of this study was to evaluate the development and the quality of leaves from several S. rebaudiana Bertoni strains cultivated under temperate climate conditions in the tunnel and in the open field in the relation to the photosynthetic activity. Investigated stevia strains differed significantly in terms of whole plant and leaf morphology, photosynthetic efficiency as well as in the content of steviol glycosides, and antioxidant capacity, independently of cultivation place. On the basis of several chlorophyll a fluorescence parameters analysis it was stated that plants of all examined strains, did not exhibit photosynthesis inhibition. The studies of the relationship between photosynthetic activity and the level of secondary metabolites indicated that the highest content of steviol glycosides and phenolic compounds had plants showing also the highest value of the energy fraction photochemically converted in PS II ( YII ), while the highest ratio of rebaudioside A to stevioside content corresponded with low amount of energy dissipated as a heat ( YNPQ ). This results might indicate that steviol glycosides play a role in the better adaptation to environmental conditions. Karyology and cytometric studies revealed that all investigated stevia strains were diploids without significant differences in 2C DNA amount. Therefore, observed diversity in the content of steviol glycosides and phenolic compounds between investigated S. rebaudiana strains was not the effect of polyploidization but probably resulted from the differences in the metabolic activity of the examined plants. Highlights Stevia strains can be grown in temperate climate under the tunnel and in the field. Differences between stevia strains resulted from differences in metabolic activity. High photosynthetic efficiency is correlated with high steviol glycosides level. Steviol glycosides might function in the protection of photosynthetic apparatus.


  • 주제어

    Stevia .   Environmental stress .   Photosynthesis .   Ploidy level .   Antioxidant capacity .   Secondary metabolites.  

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