The effects of salt and drought stress on phenolic accumulation in greenhouse-grown Hypericum pruinatum

  • Omer Caliskan | ocaliskan@omu.edu.tr Vocational High School of Bafra, Ondokuz Mayıs University, Samsun, Turkey.
  • Jolita Radusiene Nature Research Centre, Institute of Botany, Vilnius, Lithuania.
  • Kadir Ersin Temizel Department of Agricultural Structures and Irrigation, Ondokuz Mayıs University, Samsun, Turkey.
  • Zydrunas Staunis Nature Research Centre, Institute of Botany, Vilnius, Lithuania.
  • Cuneyt Cirak Vocational High School of Bafra, Ondokuz Mayıs University, Samsun, Turkey.
  • Dursun Kurt Vocational High School of Bafra, Ondokuz Mayıs University, Samsun, Turkey.
  • Mehmet Serhat Odabas Vocational High School of Bafra, Ondokuz Mayıs University, Samsun, Turkey.

Abstract

Hypericum pruinatum is a medicinal herb containing several bioactive compounds with important pharmacological activity. In this study, we investigated the effects of the salt (0.03 - control, 1, 2.5, 4 and 8 dS m–1 of MgSO4, CaCl2 and NaCl salts) and drought stress (80, 100 and 120% of required water) on the content of phenolic compounds, namely chlorogenic acid, rutin, hyperoside, isoquercetine, quercitrine and quercetine in greenhouse grown plantlets. In general, the salt stress especially in elevating doses increased the levels of all of the compounds analysed, whereas drought stress did not cause a significant chance in chemical content of the plantlets. The present results indicated that abiotic stress factors, particularly salinity, have a marked influence on the content of phenolic constituents in H. pruinatum and it is a salt tolerant species. The results also indicated that phenolic compounds play significant physiological role in salinity tolerance.

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Published
2017-09-29
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Original Articles
Keywords:
Salt, Drought stress, Phenolic accumulation, Greenhouse, Hypericum pruinatum
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How to Cite
Caliskan, O., Radusiene, J., Temizel, K. E., Staunis, Z., Cirak, C., Kurt, D., & Odabas, M. S. (2017). The effects of salt and drought stress on phenolic accumulation in greenhouse-grown Hypericum pruinatum. Italian Journal of Agronomy, 12(3). https://doi.org/10.4081/ija.2017.918