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

Çalışkan, Ömer; Radušienė, Jolita; Temizel, Kadir Ersin; Staunis, Zydrunas; Çırak, Cüneyt; Kurt, Dursun; Odabas, Mehmet Serhat

doi:10.4081/ija.2017.918

Cited by 40 publications

(22 citation statements)

References 32 publications

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“…The preceding results indicate that a wet soil environment is suitable for the accumulation of flavonoids in Eleuthero. This is inconsistent with previous research on St. John's wort and Hypericum pruinatum (Caliskan et al, 2017;Gray et al, 2003). This could be explained by the fact that phenylpropanoids and shikimate pathway enzymes reduce their activity under drought stress, as has been demonstrated in other plants (Mewis et al, 2012;Sanchez-Rodriguez et al, 2011).…”

Section: )contrasting

confidence: 89%

Changes in Growth and Photosynthetic Parameters and Medicinal Compounds in Eleutherococcus senticosus Harms under Drought Stress

Xu¹,

Wang²,

Wang³

et al. 2019

horts

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In this investigation, changes in growth and photosynthetic parameters were used to explain the effects of drought stress on morphology and photosynthesis of Eleutherococcus senticosus. Liquid chromatography (LC)-mass spectroscopy (MS) was used to determine the content of eleutheroside B, eleutheroside E, isofraxidin, hyperoside, rutin, and kaempferol under different drought stress conditions to explain the effects of drought stress on secondary metabolism of Eleuthero. Growth and photosynthetic physiological parameters showed that drought stress could inhibit the growth and photosynthesis of Eleuthero. The compounds studied showed the same cumulative trend in various organs of Eleuthero under different drought stress conditions, with the highest content in the moderate drought stress group and the lowest in the severe drought stress group. Among them, the content of eleutheroside B was found to be higher in the 5-year-old stem. The content of eleutheroside E was higher in the 3-year root. The content of isofraxidin was highest in the 5-year-old root. The content of hyperoside, rutin, and kaempferol were higher in the 3-year-old leaves. The results show that a wet soil environment was beneficial to growth and photosynthesis of Eleutherococcus senticosus, and moderate drought stress is conducive to the accumulation of its active ingredients.

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Section: )contrasting

confidence: 89%

Changes in Growth and Photosynthetic Parameters and Medicinal Compounds in Eleutherococcus senticosus Harms under Drought Stress

Xu¹,

Wang²,

Wang³

et al. 2019

horts

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“…However, basil managed to survive high salt stress. With increasing salinity levels, decreases in growth were higher in roots than in leaves [ 47 ]. The increased Na accumulation and a reduction in K, Zn, Cu and Mn concentrations could be responsible for decreased biomass.…”

Section: Discussionmentioning

confidence: 99%

The impact of different Zinc (Zn) levels on growth and nutrient uptake of Basil (Ocimum basilicum L.) grown under salinity stress

Tolay

2021

PLoS ONE

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Salinity is among the most important abiotic stresses, which negatively affect growth, nutrient uptake and yield of crop plants. Application of different micronutrients, particularly zinc (Zn) have the potential to ameliorate the negative impacts of salinity stress. However, the role of Zn in improving salinity tolerance of basil (Ocimum basilicum L.) is poorly understood. This study evaluated the impact of different Zn levels (0, 5 and 10 mg kg-1) on growth and nutrient acquisition traits of basil under different salinity levels (0, 0.5, 1.0 and 1.5% NaCl). Data relating to biomass production, chlorophyll index, sodium (Na), potassium (K) uptake, K/Na ratio, Zn, copper (Cu), manganese (Mn) and iron (Fe) uptake were recorded. Increasing salinity level reduced biomass production, chlorophyll index and nutrient uptake traits (except for Na and Fe accumulation) of basil. Zinc application (10 mg kg-1) improved biomass production, chlorophyll index and nutrient acquisition traits under normal as well as saline conditions. The reduction in chlorophyll index and biomass production was higher under 0 and 5 mg kg-1 than 10 mg kg-1 Zn application. The K concentration decreased under increasing salinity; however, Zn application improved K uptake under normal as well as saline conditions. Different growth and nutrient acquisition traits had negative correlations with Na accumulation; however, no positive correlation was recorded among growth and nutrient uptake traits. The results revealed that Zn application could improve the salinity tolerance of basil. However, actual biochemical and genetic mechanisms involved in Zn-induced salinity tolerance warrant further investigation.

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“…Phenolic compounds (TP) have important antioxidant properties and this biosynthesis is significantly induced in plant tissues under heat conditions. This is why they represent a powerful mechanism of defence in the optimal protection against environmental stresses (Caliskan et al 2017). Data indicates that the warm period (B-32°C) promoted the increase in TP content for all chestnut plants.…”

Section: Antioxidant Activitymentioning

confidence: 96%

Stress Oxidative Evaluation on SiK®-Supplemented Castanea sativa Mill. Plants Growing Under High Temperature

Carneiro-Carvalho

Anjos

Pinto

et al. 2020

J Soil Sci Plant Nutr

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The protective effect of silicon (Si) against environmental stress has been observed in many crops. The objective of this work was to evaluate the impact of SiK® (potassium silicate) fertilization on the resilience capacity of chestnut plants growing under high air temperature conditions and their recovery capacity after a turnover to adequate temperatures. Castanea sativa plants were supplied with 0 mM, 5 mM, 7.5 mM, and 10 mM SiK® and exposed sequentially to 25°C, 32°C, and 25°C for 1 month each. Data suggested that silicon are involved in increasing the heat tolerance of chestnut plants by reducing the oxidative damage and improving the antioxidant enzymes and metabolites. Under heat stress (32°C), there was an increase in the catalase, ascorbate peroxidase, and peroxidase activities, as well as in the phenol content of supplemented plants, which consequently reduced the electrolyte leakage, lipid peroxidation, and hydrogen peroxide content. Additionally, a lower proline content was measured inside the leaves' tissues of Si-treated plants. Besides the resilience against heat stress, after exposure to 32°C, the recovery was also quick.

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

Cited by 40 publications

References 32 publications

Changes in Growth and Photosynthetic Parameters and Medicinal Compounds in Eleutherococcus senticosus Harms under Drought Stress

Changes in Growth and Photosynthetic Parameters and Medicinal Compounds in Eleutherococcus senticosus Harms under Drought Stress

The impact of different Zinc (Zn) levels on growth and nutrient uptake of Basil (Ocimum basilicum L.) grown under salinity stress

Stress Oxidative Evaluation on SiK®-Supplemented Castanea sativa Mill. Plants Growing Under High Temperature

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