Research interests


Annotation of the doctoral dissertation

Aim: to assess the potential of physiologically active compounds to control the reproductive system of the Sosnowsky’s hogweed.

1. 1. To investigate the growth and development of Sosnowsky’s hogweed seeds and their embryos and to assess the effects of physiologically active compounds on embryogenesis.
2. To investigate the effect of physiologically active compounds on the reproductive system of Sosnowsky’s hogweed under natural conditions in vivo, by assessing the levels of endogenous phytohormones in the developing fruit.

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  1. Jurkonienė S., Žalnierius T., Gavelienė V., Švegždienė D., Šiliauskas L., Skridlaitė G. 2016. Morphological and anatomical comparison of mericarps of different type of Heracleum sosnowskyi umbels. – Botanica Lithuanica; 22 (2): 161–168.
  1. 2018.08 – 2018.12 University of Helsinki (Finland) ERASMUS+ Exchange studies in Master’s degree programme: Plant biology.
  2. 2019.07 – 2019.09 University of Helsinki (Finland) ERASMUS+ traineeship in Research group in Sensory and Physiological Ecology of Plants. Supervisor: Dr P. Aphalo
  1. Žalnierius T., Koryznienė D., Jurkonienė S. Heracleum sosnowskyi Manden. dry-fruit development under exogenous GA3 and TIBA application. International scientific conference. “Open Readings 2019”, 19-22, March 2019. – Vilnius (Lithuania). Abstract book, p. 75. Oral presentation.
  2. Žalnierius T., Koryznienė D., Jurkonienė S. Impact of exogenous GA3 and TIBA treatment on Heracleum sosnowskyi seed vigour. International scientific conference. “The Coins 2019”, 26-28, February 2019. – Vilnius (Lithuania). Abstract book, p. 107–108. Poster presentation.
  3. Koryznienė D., Jurkonienė S., Žalnierius T., Gavelienė V., Jankauskienė J., Jankovska-Bortkevič E., Bareikienė N. Effect of GA3 Treatment on The Development of Heracleum sosnowskyi Manden. seeds. International scientific conference. “Kliment‘s days”, 8-9, September 2018. – Sofia (Bulgaria). Abstract book, p. 117. Poster presentation.
  4. Žalnierius T., Jurkonienė S. Sosnovskio barščio skirtingų tipų žiedynų merikarpių morfologinės ir anatominės sandaros palyginamoji analizė. Conference of LEU Student’s Scientific Society. 29, April 2016. – Vilnius (Lithuania). Oral presentation.