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

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

Keywords

Hypericum pruinatum, Phenolic constituents, Plant defense, Salinity, Water stress

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Submitted: 2017-01-13 12:55:09
Published: 2017-07-21 16:22:19
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Copyright (c) 2017 ÖMER ÇALIŞKAN, KADİR ERSİN TEMİZEL, JOLITA RADUSIENE, ZYDRUNAS STAUNIS, CUNEYT CIRAK, DURSUN KURT, MEHMET SERHAT ODABAS

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